Answer:
a offspring with unique combinations of traits
Explanation:
This question is describing a process called CROSSING OVER, which is unique to meiosis. Crossing-over is a process whereby non-sister chromatids of a homologous chromosome exchanges a segment or portion of their chromosome. This process of crossing over occurs in the PROPHASE I stage of meiosis.
The result of crossing-over, if it occurs, is to promote genetic diversity among the species of an organism. This is because the exchange of chromosome segments produces an offspring with a unique combinations of traits. Alleles of a gene are recombined in such a way that a unique combination is produced via the process.
Choose the correct term for each definition or example.
cell engulfs molecules in cell "drinking": pinocytosis
molecules helped by protein; move insoluble molecules across plasma membrane:
molecules move in and out freely from high to low concentration:
cell engulfs microorganisms in cell "eating": phagocytosis
molecules "pumped" in or out from low to high concentration active transport
oxygen, carbon dioxide:
transports sodium, potassium:
transports glucose, amino acids:
Answer:
These are the following answers to the items:
Pinocytosis -cell engulfs molecules in cell "drinking"
Facilitated diffusion- molecules helped by protein; move insoluble molecules
across plasma membrane
Passive diffusion- molecules move in and out freely from high to low concentration
Phagocytosis- cell engulfs microorganisms in cell "eating"
Active transport- molecules "pumped" in or out from low to high concentration
Passive diffusion- oxygen, carbon dioxide
Active transport- transports sodium, potassium
Pinocytosis- transports glucose, amino acids
Explanation:
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Answer:
The person above me is correct besides the last one which is facilitated diffusion.
5. Knowing that acid rain has a pH of 2-3, would you conclude that crop species with a narrow soil pH range are in trouble? Is acid rain a problem for plant species and crops?
Answer:
Yes
Explanation:
Unless the crops acidity range is that of the rain( which it wouldn't be) it would throw off the crops Ph balance and harm it.
Yes, crop species with a narrow soil pH range are potentially in trouble due to acid rain. Acid rain can have harmful effects on plant growth and productivity. The acidity of the rain can change the pH level of the soil, making it more acidic and less hospitable for plants.
What is acid rain?Acid rain is a type of rain or other precipitation that is unusually acidic and has elevated levels of hydrogen ions (low pH). It is caused by the release of sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere, which then reacts with water vapor to form sulfuric acid and nitric acid.
These acids can fall back to the ground as acid rain or other forms of precipitation and can cause harm to plants, animals, and infrastructure. Acid rain can also contribute to soil and water pollution and can have negative impacts on human health.
Acidic soil can also release toxic substances, such as aluminum, which can further damage plant roots and reduce plant growth. In addition, acid rain can damage plant foliage directly, leading to reduced photosynthesis and reduced yields.
So, acid rain can be a significant problem for plant species and crops, particularly those with a narrow soil pH range.
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which type of cells will undergo mitosis.
Answer:
eukaryotic cell...........only
Photosystem II is a phase of what type of reaction?
Calvin cycle
light-independent
light-dependent
electron transport
Answer:
Light Dependent
Explanation:
Photosystem II obtains replacement electrons from water molecules, resulting in their split into hydrogen ions (H+) and oxygen atoms. The oxygen atoms combine to form molecular oxygen (O2), which is released into the atmosphere. The hydrogen ions are released into the lumen.
Which statements are true of all plants? Select four options.
All plants are multicellular, All plants are eukaryotic, All plants are autotrophic, and All plants need sunlight.
All plants are multicellular, All plants are eukaryotic, All plants are autotrophic, and All plants need sunlight are true about plants.
What are the characteristics of autotrophs?An autotroph or primary producer is an organism that produces complex organic compounds using carbon from simple substances such as carbon dioxide, generally using energy from light or inorganic chemical reactions.
Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms. Algae, which live in water and whose larger forms are known as seaweed, is autotrophic.
Examples of organisms that are autotrophic are plants and algae, and they have specialized cell organelles that have the ability to power the process of photosynthesis.
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Compare and contrast the psychoanalytic theories of Freud and Erikson. How does Erikson’s theory explain the different stages of adulthood?
The similarity between the psychoanalytic theories of Freud and Erikson is that they both separate development into stages of a individual's life.
What is psychoanalytic theory?The psychoanalytic theory is the theory that teaches that the behaviour of an individual depends on their past experiences.
The two main psychologist that developed the psychoanalytic theory are Sigmund Freud and Erick Erickson.
The similarity between the psychoanalytic theories of Freud and Erikson is that they both separate development into stages of a individual's life.
The difference between the psychoanalytic theories of Freud and Erikson is that Sigmund Freud focused on the influence of the basic needs and biological forces while Erick Erickson focused on the social and environmental factors.
Erikson’s theory explain the different stages of adulthood from the age of 18 to 40 years as intimacy versus isolation.
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HIIII NEED HELP ASAP!
Why are Zebra mussols located primarily in areas in the eastern United States rather than in the Western United States?
Answer:
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Where are the sides of a DNA molecule made of
PLEASE HELP FAST! EDGE 2020 BIO
The building blocks of proteins are
.
A.) amino acid
B.)nucleotides
C.)base pairs
Answer:
A. Amino acid
Explanation:
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain.
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Which is the best definition of historiography?
determining a source’s reliability while collecting evidence
collecting objects remaining from a particular period in history
using the results of historical research to tell the story of history
investigating historical evidence including artifacts and document
Answer:
using the results of historical research to tell the story of history. So C
Explanation:
sorry if i got it wrong, but i think its C
HELP !!!!!!!!
Which best describes the activity of autotrophs?
a.They use the energy harvested by, other photosynthesizers.
b. They use the energy harvested by heterotrophs.
c. They convert carbon dioxide and water, with the assistance of light into complex, energy-rich organic molecules, such as glucse.
d. They use sunlight to break down large complex, energy-rich organic molecules, such as glucose.
Answer:
I would go to option C
Explanation:
Autotrophs are organisms that can produce their own food, using materials from inorganic sources. Option C matches this definition and process.
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The correct answer about the activity of autotrophs is - c. They convert carbon dioxide and water, with the assistance of light into complex, energy-rich organic molecules, such as glucose.
Autotrophs are the organisms that make their food and produce energy on their own. These organisms are not dependable on any other organisms.
These organisms produce their food and energy mostly by the process called photosynthesis.They convert carbon dioxide and water into energy-rich organic molecules, known as glucose.this process takes place in the presence of sunlight.Thus, the correct answer is - option C.
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What causes the pain associated with a herniated disc?
ATP photosynthesis and cellular respiration cycle
Answer:
what do you want to know??
PLEASE HELP IN ONE MINUTE WILL MARK BRAINLIST
Answer:
A
Explanation:
Why did the Elodea tube revert back to a red color after being exposed to light and not the control?
Answer:
Through investigation, students observe that an Elodea plant in water and exposed to light performs photosynthesis. By using an oxygen meter, students can identify an increase in the amount of dissolved oxygen in the water containing the Elodea plant. This is a product of photosynthesis.
Explanation:
...
in order for an animal to gain mass what does it need?
Answer: Food
Explanation: Of course, animals need food in order to gain mass. The food is used to transfer into cells, forming tissues, skin, and muscle to the animal.
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which of the following contributes to warmer temperatures on earth
A. more direct sunlight
B. longer days
C. all of the above
12.
Which event occurs in prophase I of meiosis, but not prophase of mitosis?
a. Sister chromatids separate and move to opposite poles.
b. All chromosomes line up in a single row at the center of the cell.
c. Homologous pairs separate and move towards opposite poles of the cell.
d. Homologous chromosomes pair to form a tetrad, and may cross over.
Answer:
d
Explanation:
The tetrad is formed by synapsis of homologous chromosomes.
Which is MOST likely needed when describing the change in position of an object?
Answer:
setting
Explanation:
because what it is is important to know
According to this, speed or motion is most likely needed when describing the change in position of an object.
What is motion?Motion is a change in the position of an object over time.
Motion is defined in terms of expulsion, distance, velocity, acceleration, time and speed.
There are three main types of motion which include circular, linear and oscillatory motion.
Thus, speed or motion is most likely needed when describing the change in position of an object.
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What clues suggest that the river acts as a "freight train" carrying rock out through the Grand Canyon?
Answer:
today, in the deepest part of the Grand Canyon, the Colorado River flows past rocks that are 1.7 billion years old,flows, caused the widening of the canyon. Gathering speed and volume, piles of loose rock and soil that originate in a river's tributaries merge to form powerfully erosive debris flows, which are capable of dramatically affecting the surrounding terrain.
Explanation:
From the examples below, select the examples of cells or organisms responding to stimuli in order to maintain homeostasis.
Example of cells or organisms responding to stimuli in order to maintain homeostasis
A unicellular organism beating microscopic hairs to escape a chemical pollutant in its environmentA plant bending toward a light sourceAnts moving within their mounds depending on the time of dayIguanas laying in the sunlight if their body temperature is lowA person shivering when their body temperature is low.What is homeostasis?Homeostasis is the process by which the body maintains a fairly constant environment at all times.
Homeostasis is important to organisms because the cells of the body can only perform their metabolic functions efficiently within certain physiological conditions.
Example of cells or organisms responding to stimuli in order to maintain homeostasis include the following:
A unicellular organism beating microscopic hairs to escape a chemical pollutant in its environment so that the internalenvironment is not adversely affected by the pollution in the external environment A plant bending toward a light source in order to receive more light required for growth and production of food. Ants moving within their mounds depending on the time of day in order maintain their body temperatures within the optimum range requiredfor continuous body functions.Iguanas laying in the sunlight if their body temperature is low in order maintain their body temperatures within the optimum range requiredfor continuous body functionsA person shivering when their body temperature is low in order maintain their body temperatures within the optimum range requiredfor continuous body functions.In conclusion, homeostasis helps organisms respond and adapt to changes in their environment.
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photosynthesis define
Answer:
the complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chlorophyll.
Explanation:
Explanation:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
refer to the diagram provided.
this cell can conduct cellular respiration name a product that is used as a reactant in photosynthesis
Answer:
A.) CO2/carbon dioxide
Explanation:
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how do i tell if my bearded dragon has tail rot?
hurry up plz The study of history is best related to which other area of study?
geology
geometry
architecture
political science
Answer:
Political Science
what is the level of organization of the organs from smallest to largest (brain, kidneys, heart, lungs, liver, stomach)?
Answer:
I think it might be Kidneys, liver, stomach, heart, brain, and lungs
Explanation:
I hope this is right im sorry if it is not, cause im just guessing kinda
Describe the physiological process of hunger. Include a discussion about glucose, the hypothalamus, set point, ghrelin/leptin, and basal metabolic rate in your response. Then, describe the cultural and situational factors that influence hunger.
Answer:
Ghrelin is made in the stomach. It stimulates hunger by entering the brain and acting on the neurons in the hypothalamus to increase the activity of the hunger-causing nerve cells and reducing the activity of hunger-inhibiting cells. As the stomach empties, the release of ghrelin increases. Leptin is a protein produced by fat cells that is a hormone acting mainly in the regulation of appetite and fat storage. When your blood sugar levels are too low, your cells become starved for energy. At first, you might notice minor symptoms, such as hunger and headaches. However, if you don’t get your blood sugar levels up in time, you may be at risk for serious complications. Introducing more glucose into your body will help solve the problem of low blood sugar. Our hunger is influenced not only by our physical state but also by our memory of when we last ate and our expectation of when we should eat again, this is what the hypothalamus does. According to set point theory, after a time, your body will fight reduced calorie intake by sending signals (hunger indications) and slowing down your metabolism to attempt to bring you back to your normal set point. Basal Metabolic Rate is the number of calories required to keep your body functioning at rest. BMR is also known as your body's metabolism; therefore, any increase to your metabolic weight, such as exercise, will increase your BMR. Everyone's basal metabolic rate is different. Although we humans as a species prefer certain tastes (such as sweet and salty), we learn to satisfy those preferences with specific foods eaten in the context of our families and our culture. Some of our taste preferences, such as the avoidance of new foods or of foods that have made us ill, have survival value.
Explanation:
edge 2021
Ghrelin is made in the stomach. It stimulates hunger by entering the brain and acting on the neurons in the hypothalamus to increase the activity of the hunger-causing nerve cells and reducing the activity of hunger-inhibiting cells.
Which cells are responsible for hunger?
Ghrelin is a multifaceted gut hormone which activates its receptor, growth hormone secretagogue receptor (GHS-R). Ghrelin's hallmark functions are its stimulatory effects on food intake, fat deposition and growth hormone release. Ghrelin is famously known as the “hunger hormone”.
Moreover, when food is scarce, some brain cells begin to devour themselves, activating an appetite-stimulating molecule in the process. A brain region called the hypothalamus contains neurons that regulate feeding in response to nutritional signals.
Therefore, within the hypothalamus are nerve cells that, when activated, produce the sensation of hunger. They do so by producing two proteins that cause hunger: neuropeptide Y (NPY) and agouti-related peptide (AGRP). Quite close to these nerve cells is another set of nerves that powerfully inhibit hunger.
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which is a vestigial organ
whale flipper human appendix, snake tail
Answer: human appendix
Explanation:
vestigial means of an organ or part of the body, that has become functionless in the course of evolution
Which of the following describes a boreal forest?
A biome occurring at high northern latitudes that is dominated by conifers that can withstand the long, cold winters
A blome in tropical regions where rain falls seasonally and broad-leaved trees dominate
A blome dominated by broad-leaved trees that flower and grow in warm seasons, Inen drop their leaves and become
dormant during cold winters
A biome dominated by a multilayered forest that occurs where warm temperatures and continual rains allow plant
growth year-round
Answer:
A
Explanation: