The cardiac muscle receives its supply of oxygenated blood by D.) coronary arteries that branch off the aorta.
How does cardiac muscles receives its supply of oxygenated blood?The cardiac muscle receives its supply of oxygenated blood by the coronary arteries that branch off of the aorta.
Coronary arteries supply blood to heart muscles. Like all other tissues in body, the heart muscle needs oxygen-rich blood to function. And, oxygen-depleted blood must be carried away. Coronary arteries wrap around the outside of heart.
4 main coronary arteries are the right coronary artery, left main coronary, left anterior descending and the left circumflex artery.
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Which of the following is a feature that the stomach and the small intestine have in common?
Multiple Choice
a. Rugae
b. Circular folds
c. Three-layered muscularis
d. Mucus-secreting cells
e. Gastric pits
A feature that the stomach and the small intestine have in common is mucus secreting cells.
Which traits does the intestinal lumen possess?The three parts of the intestinal wall are the ileum, jejunum, and intestine. It aids with the further metabolism of foods that are stomach-born. In order for the body to use water, vitamins, minerals, carbohydrates, fats, and proteins, it absorbs them from meals. The tiny intestine is a part of the digestive system.
What is the function of the stomach?Digestion fluids are produced in our stomach to help in the breakdown of food. It stores food until it is ready to be discharged into our small intestine.
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Describe the similarities and differences between alcoholic fermentation carried out by yeast to make alcoholic beverages and lactate-acid fermentation carried out within the human body. Source StylesFormatFontSize
The main difference between alcoholic fermentation and lactic acid fermentation is that of their end-products.
The primary distinction between lactic acid and alcoholic fermentation is that the latter results in the production of ethyl alcohol and carbon dioxide while the former yields lactic acid molecules from pyruvate.
Differences between the two processes include he following:
Pyruvate and lactate are produced directly after fermentation of lactic acid. Pyruvate is converted to ethanol by the two-step process of alcohol fermentation.End-products: Lactase and energy in lactic acid fermentation, while C02, alcohol, and energy in alcoholic fermentation are the end products. The enzymes involved in the fermentation processes of lactic acid are lactate dehydrogenase and pyruvate decarboxylase. Pyruvate decarboxylase and alcohol dehydrogenase are the two enzymes required for alcoholic fermentation.Similarities between the two processes include the following:
The two pathways convert ATPs from the breakdown of glucose.The two processes' major objective is to recycle NAD+ in order to keep glycolysis going and allow for the NAD+ to be reduced back to NADH in the process.Both processes release heat energy and are exergonic.Each produces 4 ATPs during glycolysis, the same amount as the other.To know more about fermentation, refer to the following link:
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EARTH SCIENCE //What is true about ice and liquid water?
A. Ice has a higher density than liquid water because it has less space between molecules.
B. Ice has a lower density than liquid water because it has more space between molecules.
C. Ice has a higher density than liquid water because it has more space between molecules.
D. Ice has a lower density than liquid water because it has less space between molecules.
Answer: B
Explanation:
When water freezes it expands.
Hope I helped!!!
What are the non-living component of an ecoytemPick the non-living component of an ecoytem from the provided choice. Producer
Conumer
Herbivore
Air
? The non-living component of an ecoytem are factor
1. The non-living component of an ecosystem is the air.
Thus, the correct answer is D.
2. The factor of non-living component of an ecosystem is an abiotic factor.
In ecology, biotic аnd аbiotic fаctors mаke up аn ecosystem. Biotic fаctors аre the living pаrts of the ecosystem, such аs plаnts, аnimаls, аnd bаcteriа. Аbiotic fаctors аre the nonliving pаrts of the environment, such аs аir, minerаls, temperаture, аnd sunlight.
The non-living, physicаl feаtures of the environment аre cаlled аbiotic fаctors. The prefix а meаns “not.” The term аbiotic meаns “not living.” Аbiotic fаctors include аir, wаter, soil, sunlight, temperаture, аnd climаte. The аbiotic fаctors in аn environment often determine which kinds of orgаnisms cаn live there.
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You test the expression of the constructs from Part B and obtain the following results. Regulatory DNA Promoter Transcribed region Expression? 1. Affected child Affected child Affected child No 2. Older brother Older brother Older brother Yes 3. Older brother Older brother Affected child Yes 4. Affected child Older brother Older brother No 5. Older brother Affected child Older brother Yes Which of the three hypotheses do these results support? O The results support the hypothesis that the defect in the affected child is due to a defective promoter O The results support the hypothesis that the detect in the affected child is due to regulatory DNA that will not remodel O The results support the hypothesis that the defect in the affected child is due to a mutation in the transcribed region that causes mRNA instability
The expression of one or more genes can be regulated by regulatory regions, as is well known.
The findings confirm the theory that the deficiency in the afflicted kid is caused by the regulatory DNA, which will not remodel, according to the data in the table.
Inheriting qualities from one generation to the next is made possible by genes, which are a component of DNA.
Gene regulation, the earliest genetic regulatory system, was first clearly shown in the Lac gene (operon), a basic unit of DNA.
The lac gene is necessary for the "breakdown of lactose" and aids in its for the transportation.
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Note : The table sequence of above question is attached bellow,
What causes decrease in genetic variation?
Genetic variation decreases as a result of inbreeding, genetic drift, restricted gene flow, and small population sizes.
There aren't many variations among individuals in a species with low genetic diversity since there aren't many different gene alleles present. This would imply that there are less chances to adjust to environmental changes. Due to habitat degradation, low genetic diversity is frequently observed.
The difference in DNA between individuals or communities is known as genetic variation. Mutation and genetic recombination are two of the many processes that cause genetic variation. Genetic variety is primarily caused by mutations, although it is also influenced by other processes including genetic drift.
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what types of tissues make up the skeletal system
Answer:
The skeletal system is your body's central framework. It consists of bones and connective tissue, including cartilage, tendons, and ligaments. It's also called the musculoskeletal system
Explanation:
MARK AS BRAINLIST!!
Answer: The skeletal system gives the body shape and form and helps to both protect and support the entire organism.
Bone, cartilage, tendons, joints, ligaments and other connective tissues compose the skeletal system.
The two main types of bone tissue are compact (hard and dense) and cancellous (spongy and flexible) tissue.
Explanation:
What kind of compounds are basic sugars and starches?
A carbohydrate is an organic compound such as sugar or starch, and is used to store energy. Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. In the case of carbohydrates, the small repeating units are called monosaccharides.
In this discussion, you will explain why Thanos was on his mission to reduce the world's population by
50%. What would this do for the world? Why is overpopulation a problem? How would this help
conserve some biodiversity? What would reducing the population by 50% mean for the environment
& the use of natural resources?
Answer:
if the world over populates we will have to much trash and there will not be enough space for all the people so yeah thanos was trying to help us
Explanation: can you mark me brainleist
5. Two examples of organ systems found in plants are the __________________ system and the ____________________ system.
Answer:
A plant has two organ systems: 1) the shoot system, and 2) the root system. The shoot system is above ground and includes the organs such as leaves, buds, stems, flowers (if the plant has any), and fruits (if the plant has any).
What is hypertension with heart disease?
Hypertensive heart disease is a long-term condition that develops over many years in people with hypertension.
When your high blood pressure (hypertension) is not controlled, it can lead to a variety of health issues, including heart failure and conduction arrhythmias. Hypertensive heart disease is caused by persistently high blood pressure (over 120/80 mmHg). Heart disease risk goes up as people get older and continue to have high blood pressure. People over the age of 65 are more likely to develop heart failure.
Your heart has to work harder to pump blood through your body when you have high blood pressure for an extended period of time.
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A) Which kingdoms include organisms that have a nucleus?
B) Which kingdoms include organisms that can make their own food?
Explanation:
A) Cells of protist organisms do contain a nucleus. This kingdom is made up of species that do not really easily fit into other kingdoms such as the plant, animal, and fungi kingdom.
B
plants are autotrophs, organisms that make their own food. With over 250,000 species, the plant kingdom is the second largest kingdom.
Explanation:
a) protoctists
b) plant kingdom
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what causes lung cancer
Answer:
smoking ,........
.........
. An organism that has two different alleles of a given gene has a(n) _____ genotype. aneuploid dizygous heteromorphic heterozygous homozygous
An organism that has two different alleles of a given gene has a(n) heterozygous genotype. aneuploid dizygous heteromorphic heterozygous homozygous
Heterozygous genotypes are characterized by two different alleles of a particular gene. These alleles can be inherited from different parents or from the same parent, and this type of genotype is also known as a dizygous genotype.
An example of this is eye color; if an individual has one allele for blue eyes and one allele for brown eyes, they would have a heterozygous genotype. This type of genotype is important for producing genetic diversity, allowing for adaptations that can be beneficial to a species. It is also important to note that having a heterozygous genotype does not guarantee that the individual will express the traits of both alleles; rather, the individual will usually express the trait of the dominant allele.
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What is the difference between populations and communities?
O Populations are of the same species in an area, communities are different species within an area
O Populations are different species, communities are of the same species
O The only difference is how the individuals cooperate with each other or not in the same species
O The only difference is how individuals cooperate or not between different species
Answer:
b
Explanation:
it's kind of a trick question but im pretty sure this is the answer
Plz anybody help me out :)
Explain the working of device that uses the principle of gas law
Answer:
Gas laws, laws that relate the pressure, volume, and temperature of a gas. Boyle's law—named for Robert Boyle—states that, at constant temperature, the pressure P of a gas varies inversely with its volume V, or PV = k, where k is a constant.
Explanation:
Hope it helps u
FOLLOW Y ACCOUNT PLS PLS
What condition are needed do an accurate radiometric date to be obtained form a mineral ample?
The necessary condition is that the mineral must remain closed since its formation.
Radiometric dating, radioactive dating, or radioisotope dating is used to date rocks and carbon with trace radioactive impurities.
Heat, pressure, and temperature do not affect isotope decay. Radiometric dating is reliable. This method dates igneous and metamorphic rocks that sedimentary stratigraphic correlation cannot. 300 natural isotopes exist.
The parent's half-life must be known and long enough for it to be present in significant amounts at the time of measurement for accurate radiometric dating. Thus, mineral samples require these conditions for radiometric dating.
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What happens when CO2 increases in the ocean?
More carbon dioxide is evaporating into the ocean as a result of human-driven increases in atmospheric carbon dioxide concentrations. Currently, the ocean has an average pH of 8.1, which is basic (or alkaline), but when more CO2 is absorbed, the pH drops and the ocean becoming more acidic.
Ocean acidificationCarbon dioxide dissolves in seawater as it reaches the ocean. It first creates carbonic acid. The carbonic acid then "dissociates," or separates, into bicarbonate ions and hydrogen ions. Ocean acidification is caused by an increase in hydrogen ion concentration and a decrease in carbonate ions as a result of increasing CO2 absorption.
Carbonate ions are necessary for the growth of the shells and thriving of clams, mussels, crabs, corals, and other marine life.
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answer number 5 plsss
no nonsense
Any material of small granulometry, or up to five millimeters in size, is called sand. From that measure they are called stone. Stones are the result of the breakdown of rocks, just like sand, and in the crushing process it forms crushed stone.
How is sand formed?The formation of sand begins with the action of wind, rain, sun, tree roots and microorganisms that wear down the rocks present in various regions of the continent. Over the years, pieces of the stones break loose and, little by little, turn into small grains. This process is called erosion.
What kind of rock is sand?Sand is a detrital, mobile, permeable sedimentary rock that, according to the size of its grains, can be classified into coarse, medium and fine sand.
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In Drosophila, the gene for eye color (A), wing shape (B), and body color (C) are all found on the same chromosome. The following crossover frequencies for these genes were determined by & trihybrid test-cross experiments. Determine the sequence of genes A, B, and C on a chromosome. There are two correct answers: Crossover Frequency 12% Genes A&B A&C B&C 18%
The correct sequence of the genes A, B and C found on the same chromosome can be : B A C or C A B.
Genes are the part of DNA sequences that code for a certain protein responsible for a particular trait. These genes are present upon the chromosomes. Each chromatid can contain multiple genes on it.
According to the question, the crossover frequency between genes B and C is 18 % hence they are the farthest (18% = 18 centi-Morgan). And the frequency between genes A & B and A & C is 12% and 6% respectively. Therefore the distance of B and C is the sum of the remaining two. This determines the sequence could be B A C or C A B.
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Explain why deeper soils are affected less by erosion than shallow soils.
Pls help me ASAP!!!
Answer:
These impacts include compaction, loss of soil structure, nutrient degradation, and soil salinity. The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species.
What are the important functions of the respiratory system?
Answer:The important functions of the respiratory system are to provide oxygen to the body's cells, remove carbon dioxide from the body, and regulate the pH of the body's fluids. Additionally, the respiratory system helps to regulate body temperature, filter out airborne particles, and produce vocal sounds.
Explanation:
hihihihi please help
Answer:
I think is B because at stage 4 we can observe that different kinds of cell formed(the cell on the edge is different from the inner cell)
Explanation:
Answer:
i think its b as well
Explanation:
What is a 1:2 1 genotypic ratio?
The 1:2:1 genotypic ration dictates the law of are is homozygous dominant, heterozygous dominant and homozygous recessive.
A 1:2:1 genotypic ratio is a ratio of alleles that is found in a monohybrid cross. A monohybrid cross is a type of genetic cross in which only one trait is being studied. In a 1:2:1 ratio, the first number represents the homozygous dominant genotype, the second number represents the heterozygous genotype, and the third number represents the homozygous recessive genotype. This ratio can be found by using the Punnett square method.
This generally represents the genetics, of the first generation of the monohybrid cross made between the pea plant showing dominant and recessive traits. Such that dominant parent was homozygous dominant and recessive parent was homozygous recessive.
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Which of the following statements is true?
Chlorophyll is contained in organelles called mitochondria.
Water is the energy source for plant photosynthesis.
A by-product of photosynthesis is carbon dioxide.
Roots have tiny root hairs that maximize the plant's ability to absorb water.
Answer: roots have tiny root hairs that maximize plants ability to absorb water
Your answer is in fact correct
A snowstorm was predicted in Chicago. Identify the possible upper air temperature, surface temperature, and air pressure of Chicago on that day. Normal atmospheric pressure is 29.9 inches of mercury
Answer: For a snowstorm to occur, warm air must rise above cold air. The pressure must also be below atmospheric pressure
Explanation: For a snowstorm to occur, warm air must rise above cold air. The pressure must also be below atmospheric pressure
Answer: For a snowstorm to occur, warm air must rise above cold air. The pressure must also be below atmospheric pressure
In a certain plant, yellow leaves are dominant (Y) and red leaves are
recessive (y). A plant with genotype Yy and a plant with yy are crossed. If they have four offspring, how many would you predict would have red leaves? (Hint: Draw a Punnett square to help you determine the answer.)
A. 4
B. 3
C. 2.
D. 1
Answer: C
Explanation: When a plant with genotype yy and Yy are crossed there will be two yellow offsprings with genotype Yy(where yellow is dominating) and another two with yy(where leaves are completely red)
According to the information provided, yellow leaves (Y) are a dominant characteristic over red leaves (Y), which means that if the allele for yellow is paired with allele for red leaves as can be seen in Punnett square, it will hide the expression of red leaves. So, the correct option is D.
What is Punnett Square?The genotypes of a specific crossing or breeding experiment are predicted using the Punnett square, a square diagram. Biologists use the figure to calculate the likelihood that a child will have a specific genotype.
The information given indicates that yellow leaves (Y) have a dominant trait above red leaves (Y), that implies that if the alleles for yellow and red leaves are linked together as shown in Punnett square, this will conceal the manifestation of red leaves.
For red leaves, the genotype is yy, while the two potential genotypes for yellow leaves are YY and Yy. Parents have the genotypes Yy and Yy. When they are crossed, one of every four offspring that results will have red leaves.
Therefore, the correct option is D.
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What happens when protease is added to protein?
When protease is added, proteins breakes into smaller polypeptides or single amino acids, and forms new protein products.
A protease is an enzyme that catalyzes (increases reaction rate or "speeds up") proteolysis, breaking down proteins into smaller polypeptides or single amino acids and promoting the creation of new protein products. It is also known as a peptidase, proteinase, or proteolytic enzyme.
They achieve this by using hydrolysis, a mechanism in which water breaks bonds, to cleave the peptide bonds found in proteins. Protein digestion after ingestion, protein catabolism (the breakdown of aged proteins),[3][4] and cell signaling are only a few of the biological processes that proteases are involved in.
All living forms and viruses have proteases. They have repeatedly developed independently.
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Which of the following statements is true regarding the genetic map distance between two markers?
a) Is inversely related to the frequency of chiasma
b) Is directly related to the frequency of crossing-over.
c) Increases in accuracy as the distance between loci increases.
d) Can be estimated by multiplying the recombination frequencies of subinterverals.
e) Adding the subinterverals is less accurate than a direct measure by a two point cross.
The correct option (B) Is directly related to the frequency of crossing-over.
The procedures used to establish the location of a gene and the distances between genes are referred to as gene mapping. Gene mapping may also describe the distances between various locations within a gene.
The purpose of all genome mapping is to place a set of molecular markers on the genome in their proper locations. Molecular markers exist in many different forms and sizes. Genes may be viewed as a type of genetic marker and mapped in the same way as any other marker when creating genome maps. Gene mapping aids in the creation of unique recombinants inside an organism in a variety of fields of study.
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