The use of cloned prize plants and animals may reduce the possibility of improving the same species in the following ways: Cloning involves replicating identical copies of an organism. This means that the cloned animal will be genetically identical to the original animal.
The absence of genetic diversity in cloned animals implies that if a cloned animal is affected by a disease or other harmful factors, there is a higher likelihood that the entire population would be affected.
Inbreeding may occur when the same animal is cloned repeatedly, leading to the creation of weaker offspring with a higher likelihood of health issues.
Cloning also reduces the amount of genetic diversity in a population, which can result in a higher risk of genetic abnormalities, diseases, and susceptibility to environmental changes.
A reduction in genetic diversity is detrimental to the long-term survival of a species because it makes it more susceptible to environmental changes.
Therefore, using cloned prize plants and animals may reduce the possibility of improving the same species in the long run.
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the presence of a rug or its metabolites in cells, tissue, organs, or other edible products of an animal is referred to as a
The presence of a rug or its metabolites in cells, tissue, organs, or other edible products of an animal is referred to as a Drug Residue.
A drug residue is any medication that remains in animal tissues, fluids, or edible goods at the time of slaughter or when an animal is harvested or when an animal is given to the owner for consumption.
Drug residues are defined as any compound found in animal tissue, edible animal products, or animal feed, including their metabolites, which are unapproved for use in food animals or are used at higher doses, routes of administration, or withdrawal times than allowed in official labeling.
The presence of a drug residue in an animal's body, as well as the amount of that drug residue, can be influenced by various factors, including the animal's health status, dosage, route of administration, withdrawal times, and the presence of other drug residues.
Drug residues may persist in animal tissues, fluids, and edible goods long after the drug has been administered to the animal. The accumulation of drug residues in animal tissues and products raises health concerns for humans who eat the products.
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Photosynthesis enables plants to produce most of the glucose that they need. What is not required for photosynthesis to take place?
The process of photosynthesis does not require oxygen. In the presence of light, green plants use carbon dioxide and water to make their own food.
The synthesis of food by plants using carbon dioxide, water, sunlight, and chlorophyll is known as photosynthesis. As a waste product, oxygen (O2) is released during the process. As a result, photosynthesis does not require oxygen.
Because plants use raw materials, such as carbon dioxide and water, to produce sugars (glucose), oxygen is not necessary for the process of photosynthesis.
Plants take in carbon dioxide (CO2) and water (H2O) from the air and soil during photosynthesis. The oxidation of the water within the plant cell results in its loss of electrons, while the reduction of the carbon dioxide results in its gain of electrons. This changes the water into oxygen and the carbon dioxide into glucose.
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2. In the large cactus finch, some males have shorter beaks and other males have
longer beaks. Which type of selection probably operated on this species?
The type of selection probably operated on this species is directional selection.
What directional selection?Directional selection is a type of natural selection that occurs when individuals with traits at one end of a phenotypic distribution have a higher fitness than individuals with traits at the other end of the distribution.
This results in a shift in the distribution of a particular trait over time towards the more advantageous end of the distribution..
In this case, the availability of different food sources on the Galapagos Islands (such as cactus flowers and seeds) likely caused selection to favor individuals with longer or shorter beaks, depending on the particular food source available.
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Which statement best explains why these freshwater Mesosaurus fossils are found today in some rock layers in both South America and Africa?
Answer:
The continents were once connected as a single land mass
Explanation:
which of the following statements is false? group of answer choices genes and chromosomes are duplicated during interphase. there is a specific number of chromosomes for each species. new nuclei are formed during telophase. homologous chromosomes cross over in prophase ii.
The following statement false is there is a specific number of chromosomes for each species.
Although the number of chromosomes in a species can vary, the range is usually very small. For example, humans typically have 46 chromosomes, while most primates have 48 chromosomes.
During interphase, the genetic material is replicated so that each daughter cell has a full set of chromosomes. During prophase I, homologous chromosomes, or chromosomes that are alike in structure, pair up and cross over to exchange genetic material. During metaphase I, the homologous chromosomes align in the middle of the cell, and during anaphase I, the homologous chromosomes are pulled apart into different daughter cells. Finally, during telophase I and II, new nuclei are formed in each of the daughter cells.
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Can someone plsss help meee
Answer:
Explanation:
exposure to certain chemicals and exposure to uv light
QUESTION 5 2 points Save Answer Which divisions of the autonomic nervous system can cause changes in each of the following parameters? Choose the best answer. A. Sympathetic and Parasympathetic B. Only Sympathetic C. Only Parasympathetic D. Neither Sympathetic nor Parasympathetic Heart rate Stroke Volume Arteriolar radius Contractility MAP
Both the sympathetic and parasympathetic divisions of the autonomic nervous system can cause changes in heart rate, stroke volume, arteriolar radius, contractility, and MAP. However, the specific changes will depend on which division is active. Option A
When answering questions on the Brainly platform, it is important to always be factually accurate, professional, and friendly. It is also important to be concise and not provide extraneous amounts of detail. It is not necessary to repeat the question in your answer, but it is important to provide a step-by-step explanation in your answer.
The autonomic nervous system is responsible for regulating many of the body's automatic functions, such as heart rate, blood pressure, and digestion. It is divided into two main branches: the sympathetic nervous system and the parasympathetic nervous system.
The sympathetic nervous system is responsible for the "fight or flight" response, which prepares the body for action. It increases heart rate and stroke volume, constricts arterioles, increases contractility, and raises blood pressure. These changes help to increase oxygen delivery to the muscles and other tissues, which is necessary for physical activity.
The parasympathetic nervous system is responsible for the "rest and digest" response, which helps to conserve energy and promote healing. It decreases heart rate and stroke volume, dilates arterioles, decreases contractility, and lowers blood pressure. These changes help to conserve energy and promote healing.
Both the sympathetic and parasympathetic divisions of the autonomic nervous system can cause changes in heart rate, stroke volume, arteriolar radius, contractility, and MAP. However, the specific changes will depend on which division is active. Option A
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in a normal heart, an increase in edv would result in in a normal heart, an increase in edv would result in a decrease in heart contractility. an increase in preload. a decrease in stroke volume. decreased stretch on the heart wall.
Preload, or the stretch of the ventricular muscle fibres shortly before contraction, would rise in a healthy heart as end-diastolic volume (EDV) increased.
What would occur if the EDV was raised?As a result, the heart is able to release the additional blood that was returned to it by increasing the ventricular contraction force. Hence, a rise in EDV leads to a rise in SV. On the other side, with this procedure, a reduction in venous return and EDV results in a reduction in SV.
What changes in cardiac output occur as EDV rises?Ventricular output is age-dependent and dependent on end-diastolic volume. When end-diastolic volume rises, stroke volume or cardiac output rises as well (the Frank-Starling relation).
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PLSSSS HELP IF YOU TURLY KNOW THISSS
Which type of cloud is very close to the earth's surface?
FogThe altostartus clouds are found in the upper troposphere
The cirrus clouds are found in the troposphere
The cumulonimbus clouds are found in the lower troposphere...
how many terms make up the scientific name of a species? how is that name distinguished in print from the common name of a species?
The scientific name of a species consists of two terms, genus and species. These two terms are typically italicized or underlined in print to distinguish them from the common name of a species, which is not italicized or underlined.
The scientific name of a species comprises two terms. These terms are the genus name and the species name. The genus name is written first, followed by the species name. A scientific name is printed in italics, with the genus name capitalized and the species name lowercase. The common name, on the other hand, is not italicized and has no specific capitalization rules. It is a general term that people use to refer to a specific organism.
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Help I need an answer for these 3
5. This is an example of Divergent evolution because they share a trait that originated in an ancestor but changed over time in different populations because they became isolated, A.
6. D, It would reduce the panthers' capacity for inherited variation and would leave them vulnerable to disease and genetic abnormalities because isolation can limit gene flow, reducing genetic diversity and increasing the likelihood of inbreeding and genetic disorders.
7. A, They make their cell membranes different. Domain Archaea's membranes are more similar to that of Eukaryotes because Archaea have unique membrane lipids that differ from those of Bacteria and are more similar to those of Eukaryotes.
What is Divergent evolution?Divergent evolution is a process by which a species diverges or evolves into two or more different forms, resulting in the development of distinct characteristics and traits. This process occurs when a population of a species becomes isolated from the rest of the population and experiences different selective pressures, resulting in different adaptations and eventually leading to the development of new species.
Divergent evolution is often driven by environmental changes, such as changes in food sources, habitats, or climate, which result in different selective pressures acting on different populations of the same species. Over time, these populations can accumulate genetic and phenotypic differences, resulting in the development of new species.
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The questions are:
5 1 point
A good example of evolutionary classification would include the Galapagos Finches observed by Charles Darwin. When the birds were blown onto different islands, they adapted in response to the food source available. This is an example of ________ because they share a trait that originated in an ancestor but changed over time in different populations because they became isolated.
Divergent evolution
Isolation evolution
Adaptive evolution
Convergent evolution
6 1 point
Due to human encroachment (intrusion on territory), the range of the Florida panther has been reduced to a very small area in South Florida. Predict the long-term effect of this isolation on the conditions
required for natural selection.
Link Florida panthers struggling with loss of their habitat - Bing video
It would boost the panthers' population by limiting their reproductive territory and would eventually decrease the populations of their prey animals.
It would increase the panthers ability to hunt successfully and would eventually lead to an increase in their numbers.
It would limit the panthers variety of food sources and they would all eventually become extinct due to starvation. It would reduce the panthers' capacity for inherited variation and would leave them vulnerable to disease and genetic abnormalities
7 1 point
Which of the following descriptions would distinguish Domain Archaea's with Domain Bacteria?
The Domain Archaea evolved more recently than Domain Bacteria.
They make their cell membranes different. Domain Archaea's membranes are more similar to that of of Eukaryotes.
Domain Archaea are more ancient in their origin.
Domain Bacteria contain Peptidoglycans.
Domain Bacteria are eukaryotes.
One difference between a family tree and a phylogenetic tree is (1 point)
O a family tree includes one subset of a single species, while a phylogenetic tree includes multiple species.
O a family tree includes multiple species, while a phylogenetic tree includes one subset of a single species.
O a family tree includes only humans, while a phylogenetic tree includes only nonhumans.
O a family tree includes animals and plants, while a phylogenetic tree includes only animals.
Answer:
I would say the fourth one
if chylomicrons are too big to enter capillaries, why are they able to be deposited into blood system by lymphatic
When chylomicrons are too big to enter capillaries, they can be deposited into the bloodstream by the lymphatic system because Chylomicrons enter the lymphatic system in the small intestine, which then transports them to the thoracic duct, where they enter the bloodstream.
For example, are absorbed by the lymphatic system and transported to the bloodstream by the thoracic duct as a result of this property.
What are chylomicrons, though?Chylomicrons are the largest of the lipoprotein classes, with diameters of 75–1200 nm. They are found in the blood and lymphatic fluid and are made up of fats known as triglycerides, as well as small amounts of cholesterol, phospholipids, and protein.
They are formed in the small intestine, where dietary lipids are absorbed by the enterocytes and incorporated into chylomicrons. These particles are then released from the enterocytes and enter the lymphatic system, where they are transported to the bloodstream by the thoracic duct.
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a researcher has performed a prospective study on the disease tetanus. to which specific kind of epidemiological study is this referring? group of answer choices experimental analytical descriptive case control prodromal
A researcher has performed a prospective study on the disease tetanus. Kind of epidemiological study referring a descriptive epidemiological study.
Descriptive study is research conducted to determine the value of an independent variable, either one variable or more (independent) without making comparisons, or linking one variable to another. In epidemiology, descriptive studies involve observing the frequency and distribution of disease, without manipulating or changing any variables.
In a descriptive epidemiological study the researcher collects data about a particular disease or condition to better understand it. This includes collecting data such as the number of cases of the disease, the characteristics of those affected, and any pattern of occurrence.s to find out patterns or trends. In this case the researcher observes the occurrence of tetanus to find out the pattern or tendency.
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explain the different patterns that you see in the phylogenetic tree. look at their body shape, habitat, and the island on which they are found. write down as many observations as you can.
Phylogenetic trees can reveal patterns in the evolution of species based on their body shape, habitat, and location. Here are some observations you can make when studying a phylogenetic tree:
Different species tend to have different body shapes, indicating different evolutionary trajectories.Species located on different islands often share a common ancestor, which can be determined by looking at the tree structure.Species living in similar habitats may be related and can often be distinguished from other species by examining the tree.These are just a few of the patterns that can be observed when looking at phylogenetic trees. By studying the tree structure, we can gain valuable insight into how species evolved over time.
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one way your body increases blood pressure is to contract muscles in large veins. what muscle tissue type will be responsible for this function?
Smooth muscle tissue is responsible for contracting muscles in large veins that help increase blood pressure. When smooth muscles in the large veins contract, it causes the blood to flow back to the heart, which in turn increases blood pressure.
Smooth muscle tissue is responsible for controlling involuntary movements, such as the involuntary contractions that occur in the stomach, intestines, and bladder. Smooth muscles are called this because they are devoid of the striations that are common in other types of muscle tissues, such as cardiac or skeletal muscles. Their cells are spindle-shaped, contain a single, centrally-located nucleus, and are elongated.
Smooth muscle cells have the ability to divide and regenerate after injury, unlike skeletal muscle cells. However, they can't contract as quickly or strongly as skeletal muscles do, and they don't need as much energy to function as the other two types of muscle cells.
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the changing of activity at synapses and the number of synapses, which occurs throughout life, is termed
The changing of activity at synapses and the number of synapses throughout life is termed synaptic plasticity.
Synaptic plasticity is the ability of synapses, or the junctions between neurons, to change in response to experience. This process allows for learning, memory formation, and adaptation to new information. Synaptic plasticity can be divided into two broad categories: short-term plasticity and long-term plasticity.
Short-term plasticity, or plasticity that lasts for a few milliseconds to a few seconds, is driven by post-synaptic potentials, or PSPs. When an action potential, or nerve impulse, reaches the synapse, it causes PSPs that lead to an increase or decrease in the strength of the synaptic connection.
Long-term plasticity, or plasticity that lasts for a few hours to a few weeks, is caused by alterations in the physical structure of the synapse.
This includes increases or decreases in the number of neurotransmitter receptors, changes in the number of synaptic vesicles, and structural modifications of the synaptic membrane. These structural changes in the synapse are caused by a process known as synaptic tagging.
Synaptic plasticity is an essential component of learning and memory formation and can occur at any age. It is important for enabling adaptive behaviors, as well as for maintaining the flexibility of the brain.
The complete question is "The changing of activity at synapses and the number of synapses, which occurs throughout life, is termed ________"
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the small intestine is the digestive organ that is lined with fingerlike projections called villi. true false
Answer: True
Explanation:
Answer:
True
Explanation: The lining is highly folded to form microscopic finger-like projections called villi which increase the surface area to help with absorption.
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what is at least one feature that differentiates a humerus from a femur, at both the proximal and distal ends?
At least one feature that differentiates a humerus from a femur, at both the proximal and distal ends is: Proximal: The humerus features a round head, which is much larger than the neck, whereas the femur has a much larger head than the neck.
Distal: The humerus features a prominent lateral epicondyle and medial epicondyle, which are the sites of muscle attachments, whereas the femur features a lateral and medial condyle, which articulate with the tibia during the knee joint movement.
The humerus and the femur are two of the body's longest and strongest bones, forming the limbs' upper and lower sections. Both of these bones have an epiphysis at each end, which connects to other bones via ligaments and enables the bones to rotate around their joints.
The differences between the humerus and the femur are as follows:
Proximal: The humerus features a round head, which is much larger than the neck, whereas the femur has a much larger head than the neck. The humerus has two bony projections: the greater tubercle and the lesser tubercle, whereas the femur has two bony projections: the greater and lesser trochanter. The humerus has a shallow glenoid fossa, which is where the head of the radius fits in, whereas the femur has a deep acetabulum that articulates with the pelvis' head.
Distal: The humerus features a prominent lateral epicondyle and medial epicondyle, which are the sites of muscle attachments, whereas the femur features a lateral and medial condyle, which articulate with the tibia during the knee joint movement.
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as plants began to move into terrestrial habitats, they had to evolve to combat the threat of .
Plants had to evolve to combat the threat of desiccation when they moved into terrestrial habitats.
To adapt to desiccation, plants developed a number of features, including the ability to conserve water and prevent water loss.
One of the key adaptations that plants developed was the ability to close the stomata, which are the small pores on the leaves through which they exchange gases with the atmosphere. By closing the stomata during periods of high temperature or low humidity, plants can reduce water loss and conserve moisture.
In addition, plants evolved a variety of mechanisms to prevent dehydration. For example, some plants have a waxy cuticle on their leaves that helps to reduce water loss. Others have specialized tissues, such as succulent leaves or stem, that can store water for long periods of time.
Plants also developed complex root systems that allow them to access water deep underground. Some plants even form symbiotic relationships with fungi that help them to absorb water and nutrients from the soil.
Overall, plants have evolved a range of strategies to combat the threat of desiccation as they moved into terrestrial habitats, allowing them to thrive in a wide variety of environments.
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which term is misspelled? group of answer choices c. bradycardia a. angiplasty d. valvulitis b. arteriorrhexis
Answer: angiplasty
Explanation:
correct spelling is angioplasty
relate these terms: carbohydrates, digestive system, glucose, metabolized, blood, energy. Highlight each
The digestive system converts carbohydrates, a type of macronutrient, into simple sugars like glucose. The body then uses glucose for energy production through metabolism.
How does the digestive system process carbohydrates?All disaccharides and complex carbohydrates are intended to be broken down into monosaccharides for absorption, albeit not all of them are entirely absorbed in the small intestine (e.g., fiber). When you chew food, salivary amylase is released, which triggers the start of digestion.
How are metabolism and carbs related?Carbohydrates have a major role in metabolism since they are involved in a number of metabolic pathways and the production of energy. In most populations, starch serves as the main source of energy; however, it must first be broken down in order to be absorbed.
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the cisterna chyli, which denotes the beginning of the thoracic duct, is formed by the convergence of which lymphatic trunks?
The cisterna chyli is formed by the convergence of the two main lymphatic trunks - the left and right lymphatic trunks. These trunks are formed by the union of the left and right subclavian, left and right internal jugular, and left and right bronchomediastinal lymphatics, respectively.
The cisterna chyli is the first segment of the thoracic duct, which carries the lymph throughout the body, supplying the lymphatic capillaries with the necessary nutrients, as well as helping to remove excess fluids, proteins, and other materials from the tissue spaces.
The cisterna chyli is the enlarged area at the beginning of the thoracic duct, which is formed by the convergence of the two main lymphatic trunks - the left lymphatic trunk and the right lymphatic trunk. The left lymphatic trunk is formed from the union of the left subclavian, left internal jugular, and left bronchomediastinal lymphatics. The right lymphatic trunk is formed from the union of the right subclavian, right internal jugular, and right bronchomediastinal lymphatics.
The lymphatic trunks flow towards the thoracic duct, a long tube that carries lymph and other substances from the left and right lymphatic trunks, across the body, to the junction of the left subclavian vein and the left internal jugular vein. This is the location of the cisterna chyli, the first segment of the thoracic duct.
The cisterna chyli is a large sac-like structure that stores the lymph collected from the lymphatic trunks before it passes into the thoracic duct. The thoracic duct then carries the lymph throughout the body, supplying the lymphatic capillaries with the necessary nutrients. It also helps to remove excess fluids, proteins, and other materials from the tissue spaces, and carries these materials to the cardiovascular system.
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true or false?: as indicated by the km, hexokinase has a greater affinity for glucose than fructose.
As indicated by the Km, hexokinase has a greater affinity for glucose than fructose. This statement is True. Hexokinase is an enzyme that has a greater affinity for glucose than fructose. It binds more readily to glucose molecules than it does to fructose molecules.
This is because the shape of the glucose molecules is a better fit for the hexokinase enzyme than the shape of the fructose moleculesThe Michaelis-Menten equation demonstrates the kinetics of enzyme-catalyzed reactions. Enzyme affinity is defined as the tightness of an enzyme-substrate complex. The Michaelis constant is a measure of enzyme affinity for its substrate. The Michaelis constant (Km) is the substrate concentration at which the enzyme-catalyzed rate of the reaction is equal to half of the Vmax (maximal rate of the reaction).
The Km is inversely related to the enzyme-substrate affinity (ES). The lower the Km, the higher the affinity for the enzyme-substrate. Therefore, hexokinase has a greater affinity for glucose than fructose, as indicated by the Km.
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which is not a primary effect of central nervous system depressants? group of answer choices reduced inhibition increased respiration rate increased drowsiness reduced muscular coordination
"increased respiration rate" is not a primary effect of central nervous system depressants.
Central nervous system depressants are substances that slow down brain activity and produce a calming effect. These substances generally produce the following effects: reduced inhibition, increased drowsiness, and reduced muscular coordination. Increased respiration rate is not a primary effect of central nervous system depressants.
Central nervous system depressants work by decreasing activity in the brain, specifically in the areas that control alertness and physical coordination. This can lead to drowsiness, relaxation, and lowered inhibitions, as well as reduced muscular coordination. Central nervous system depressants also have an effect on respiration, but the primary effect is not an increase in respiration rate. In fact, some central nervous system depressants, such as benzodiazepines, can have an effect of slowing down respiration.
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which of the following is not a chemical requirement of all bacteria? nitrogen molecular oxygen sulfur carbon mineral elements
The chemical requirement of all bacteria includes nitrogen, sulfur, carbon, mineral elements, and others. Therefore, there is no chemical requirement that is not present in all bacteria.
What is a chemical requirement?A chemical requirement is an essential chemical that bacteria need for growth, survival, and metabolism. Chemical requirements are classified into two categories: macroelements and microelements.
Macroelements are needed in large amounts, while microelements are needed in trace amounts. Macroelements include carbon, oxygen, hydrogen, nitrogen, sulfur, phosphorus, and potassium, while microelements include iron, manganese, cobalt, zinc, copper, and molybdenum.
A microbe's nutrition is defined as the variety of nutrients it requires to meet its metabolic and energy demands. Microorganisms need nutrients like any other living creature, and bacteria are no exception. Therefore, there is no chemical requirement that is not present in all bacteria.
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postlab focus questions how much protein is present in each milk sample? discuss how your estimate compared to
Milk samples have different amounts of protein in them. Proteins are macromolecules that are made up of amino acids.
How much protein is present in each milk sample?Discuss how your estimate compared to. Proteins are necessary for the body's functions. Proteins are used to build and repair tissues, support the immune system, and transport molecules throughout the body.
The amount of protein in a milk sample can be determined using a variety of techniques. One common method is to use the Bradford protein assay. This method uses a dye that binds to proteins and produces a color change that can be measured. By comparing the color change of the milk sample to a standard curve, the amount of protein in the sample can be estimated.
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which is greater? which is greater? blood pressure when the peripheral vessels dilate blood pressure when the peripheral vessels constrict
The blood pressure when the peripheral vessels dilate is greater than when the peripheral vessels constrict.
When the peripheral vessels constrict, the blood vessels become narrower and the pressure within the vessels increases. Conversely, when the peripheral vessels dilate, the blood vessels become wider and the pressure within the vessels decreases.
To further explain, when the peripheral vessels constrict, the amount of blood that is able to pass through them decreases due to the increase in pressure. This causes the heart to have to work harder to pump the blood throughout the body. Conversely, when the peripheral vessels dilate, the amount of blood that is able to pass through them increases due to the decrease in pressure. This causes the heart to have to work less to pump the blood throughout the body.
In summary, the blood pressure when the peripheral vessels dilate is greater than when the peripheral vessels constrict.
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where would you expect to find tight junctions? where would you expect to find tight junctions? between the smooth er and the rough er in the epithelium of an animal's stomach between plant cells in a woody plant in the plasma membrane of prokaryotic cells
Tight junctions are found in the epithelium of an animal's stomach and between the smooth ER and the rough ER in cells.
Tight junctions are most commonly found between the smooth ER and the rough ER, as well as in the epithelium of an animal's stomach. Tight junctions are one of three types of cell junctions, with the other two being desmosomes and gap junctions. Tight junctions form a barrier that limits the passage of substances between cells in tissues that need to be tightly regulated, such as the gastrointestinal tract, blood-brain barrier, and kidney tubules. They seal the space between adjacent cells by forming a continuous belt-like structure around the circumference of each cell. Tight junctions are made up of transmembrane proteins called claudins, occludins, and junctional adhesion molecules (JAMs), which interact with cytoplasmic scaffold proteins such as zonula occludens (ZO) to create a tight seal.
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Outline the notion of pangenesis and explain how it differs with the germ plasm theory
The key difference between pangenesis and the germ plasm theory is that pangenesis suggests that hereditary information is present in all parts of the body, while the germ plasm theory suggests that hereditary information is only present in the germ cells.
The Greek philosopher Hippocrates proposed the idea of pangenesis, a theory of heredity that postulated that all organ systems contributed tiny particles, known as "gemmules," to the reproductive cells. It was thought that these gemmules included genetic material from every organ in the body, and that when the reproductive cells merged during fertilization, the gemmules would reassemble to create the characteristics of the progeny.
The germ plasm theory, on the other hand, put out by August Weismann in the 19th century, claimed that only the germ cells held hereditary information (i.e., the egg and sperm cells). This notion held that the germ cells were "pure" and unaffected by external influences or other elements that might alter other cells in the body.
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