When both alleles of a parent or offspring are identical, the genotype of that individual is said to be.

The fact that marsupials are not as diverse in South America as they are in Australia would be classified as biogeographical evidence for evolution.

Biogeographical evidence focuses on the distribution of species across different geographical regions and how this distribution is influenced by factors such as geological events, climate change, and habitat differences. In the case of marsupials, their diversity in Australia is attributed to the unique evolutionary path they followed after the continent became isolated from the rest of the world. This isolation allowed marsupials to adapt and evolve in response to Australia's distinct environmental conditions, resulting in a wide range of species with unique adaptations.

Conversely, South America's marsupial diversity is less pronounced due to factors such as competition with placental mammals, which are more dominant in the region, and differences in available habitats. This limited diversity also supports the concept of evolution, as it demonstrates how varying selective pressures in different geographical areas can lead to different levels of species diversity and unique evolutionary paths. Overall, the contrasting marsupial diversity between Australia and South America serves as biogeographical evidence for evolution, highlighting the role that geography and environmental factors play in shaping the development and distribution of species.

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The fact that marsupials are not as diverse in South America as they are in Australia would be classified as biogeographical evidence for evolution. This type of evidence considers the geographical distribution of species and how it has been influenced by evolutionary processes.

Biogeography is the study of the distribution of organisms across different geographic regions. It plays a crucial role in understanding evolutionary patterns and processes. The distribution of marsupials provides significant evidence for the theory of evolution. Marsupials are a group of mammals characterized by giving birth to relatively undeveloped young, which then continue to develop and nurse in a pouch.

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To answer this question we need to remember a little of the cell cycle and the cell division process. When cell division starts (Prophase) the DNA condensates and forms chromosomes, at this point DNA, has to be already duplicated because when acquires a condensed form it can't be replicated or transcribed. Therefore replication occurs before, this is during the S phase (synthesis) of the cell cycle, previous to any phase of mitosis and meiosis.

Answer:

No, the replication of DNA does not occur during anaphase. DNA replication occurs during the synthetic phase (S phase) of the Interphase.

Answer:

Digestive enzymes play a key role in breaking down the food you eat. These proteins speed up chemical reactions that turn nutrients into substances that your digestive tract can absorb. Your saliva has digestive enzymes in it. Some of your organs, including your pancreas, gallbladder, and liver, also release them.

Answer:

amber

Explanation:

the amber completely preserves the specimen

Answer:

I would have to say either ribosomes or mitochondria.

Answer:

the ribosomes :)

Explanation:

Answer:The duck has webbed feet that help it swim in water. The moose has feet with hooves that help it walk on hard ground.

Explanation:

Answer:

They can alter the phenotype of an organism

The correct statement is: "The distance from Earth to the Sun is measured in astronomical units (AU)."

An astronomical unit (AU) is a unit of measurement commonly used in astronomy to represent distances within the solar system.

It is defined as the average distance from the Earth to the Sun, which is approximately 93 million miles or 150 million kilometers. Using AU as a unit allows for a more convenient way to express and compare distances between objects within our solar system.

The statement that the distance from Earth to the Moon and Mars are both measured in light years is incorrect.

A light year is a unit of distance used to measure vast distances in space and is defined as the distance that light travels in one year (approximately 5.88 trillion miles or 9.46 trillion kilometers).

The distances between Earth and the Moon, as well as Earth and Mars, are much smaller and are typically measured in terms of thousands or millions of miles or kilometers.

Similarly, the distance from Earth to the edge of the solar system is not measured in kilometers.

The outermost edge of the solar system is typically defined by heliopause, where the influence of the Sun's solar wind diminishes. This distance is often measured in astronomical units or other astronomical measurements.

The distance from Earth to the star Alpha Centauri, which is the closest star system to our solar system, is not measured in astronomical units (AU).

It is typically measured in terms of light years, as the distance is extremely vast (approximately 4.37 light years away from Earth). Therefore, the correct statement is: "The distance from Earth to the Sun is measured in astronomical units (AU)."

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Answer:

Diffusion.

Explanation:

when molecules move from an area of high concentration (large amount) to an area of low concentration (low amount). ... In simple diffusion, molecules that are small and uncharged can freely diffuse across a cell membrane.

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Hope it helps!! :D

Answer:

virus

Explanation:

its the smallest yuh

Calcium has 2 valence electrons and sulfur has 6 valence electrons. when these two elements combine, they bond two(2) to make the molecule cas which smells like rotten eggs.

CaS is the chemical symbol for calcium sulphide. Since calcium has two valence electrons while sulphur has six valence electrons.So, in order to achieve stability, calcium will give the sulphur atom its two extra electrons. Consequently, calcium sulphide is an ionic substance.We can therefore infer that a calcium sulphide molecule will only contain two lone pairs of electrons.A sulphur atom possesses six valence electrons and two valence electron bonds in a calcium sulphide molecule.

Calcium has 2 valence electrons and sulfur has 6 valence electrons. when these two elements combine, they bond ___ to make the molecule cas which smells like rotten eggs.

one

two

three

four

none

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B. Gut bacteria can infect fish.

Answer:

the pic is blurry

Explanation:

I'm sorry i can't see it it's blurry :(

Biomolecules are organic molecules present in living organisms that help cells to perform life sustaining tasks

1. The given macromolecules are; Carbohydrate, Lipid, Nucleic Acid, and Protein

The functions of the molecules are as follows;

a) Carbohydrate:

Energy source for animals and insects

Important digestion intermediate

Provide cell stability mechanically

Storage of energy as carbohydrate

b) Proteins are amino acid residue polymers that are not branched

The functions of proteins include;

They are structural components

They act as enzymes

Enable respiration

Storage of amino acid

c) Nucleic acid function is to store and express genetic information

To create biological information in cells

To encode biological information

To store biological information in cells

d) Lipids are hydrophobic organic substances, consisting of an hydrocarbon chain

The functions of lipids are;

Fatty acids is a lipid and a building material for other lipids

Phospholipids are a part of cell membranes

Glycolipids take part in the transduction of signals

2) The molecules primarily responsible for cellular energy are adenosine

5'-phosphate and adenosine tri phosphate ATP, obtained from

carbohydrates such as glucose and lipids such as glycerol is transformed

into an intermediate product of glycolysis, and therefore, becomes

involved in cellular energy, therefore, the correct option is option B)

B) Carbohydrates and Lipids

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Answer:

c- Weather observations are taken to help with weather forecasting.

Explanation:

Accelerate

Many Body segments are very wholesome are essential such as a segment for digestion and a segment for reproduction.

In the above case, it would be more accurate to say that many bodily systems are essential for our overall health and well-being, and they each play important roles in maintaining our bodily functions. For example, the digestive system is responsible for breaking down food and absorbing nutrients, while the reproductive system is responsible for producing and delivering offspring.

Therefore, It is important to note that while some bodily functions or segments may be considered more "wholesome" than others, each system is necessary and contributes to the overall functioning of the body. So, rather than categorizing them as wholesome or not, it's more useful to think of them as essential components of a complex and interconnected system.

P.S. Question seems incomplete and general definition is given.

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Aside from melipona bees, other animals that can pollinate vanilla include hummingbirds, butterflies, and certain species of bats.

Pollination is a vital ecological process that involves the transfer of pollen from the male reproductive organs (anthers) to the female reproductive organs (stigma) of flowers. This transfer of pollen allows for fertilization and the production of seeds, ensuring the reproduction and survival of flowering plants.

Insect pollination: Many flowering plants rely on insects, such as bees, butterflies, moths, beetles, and flies, for pollination. These insects are attracted to flowers by their colors, shapes, and scents. As they visit flowers in search of nectar or pollen, they inadvertently pick up pollen from the anthers and carry it to other flowers, where it can reach the stigma and fertilize the ovules.

Wind pollination: Some plants, especially trees like conifers and many grasses, use wind as a pollination mechanism. These plants produce large quantities of lightweight pollen that is easily carried by the wind. The pollen is released into the air and can reach female flowers of the same species, allowing for pollination.

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Based on the given lines, the poet uses figurative language to describe the actions of male cardinals, so the correct answer is the male cardinals preening and showing off to compete for her love, which is option B.

In the given lines, the poet uses two (figurative language )metaphors—"perked their armor" and "greased their wings"—to describe the actions of male cardinals. These metaphors suggest that the male cardinals are preparing for something important, perhaps a competition or a battle. The metaphor "perked their armor" compares the male cardinals' feathers to armor, implying that they are getting ready for a battle or competition.

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Answer:

b. Ovulation is the release of a mature ovum, which occurs once each month.

Explanation:is correct. post protected

Ovulation is the release of a mature ovum, which occurs once each month. The correct option is B.

The process of an egg being released from the ovary is called ovulation. The egg is released and travels down the fallopian tube, where it remains for 12 to 24 hours before being fertilised.

Although ovulation is necessary for conception, more than simply an egg is required. For instance, there needs to be a clear path to the egg. A blocked fallopian tube prevents pregnancy from happening.

Around the time of ovulation, you could notice that your cervical mucus is wetter, clearer, and more slippery. After ovulation, there is a slight increase in body temperature that you might be able to measure with a thermometer.

Thus, the correct option is B.

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Answer:

Dehydration synthesis is a chemical reaction that takes smaller, simpler molecules and combines them to form larger, more complex molecules with the removal of one WATER molecule. So, two monosaccharide (glucose) molecules come together and make a disaccharide (maltose).

Explanation:

Answer:

antigen-antibody interaction.

Explanation:

An anaphylactic reaction also known as anaphylaxis can be defined as a severe short-term allergic reaction that usually occurs within seconds or minutes after being exposed to an allergen.

Basically, an anaphylactic reaction is potentially life threatening i.e it is capable of causing death to patients and as such a medical diagnosis is required and it must be treated by a medical professional (expert) immediately after exposure to an allergen.

Hence, an anaphylactic reaction occurs because of an antigen-antibody interaction.

An epinephrine (adrenaline) may be quickly administered (given) to the patient by the medical professional.

Some of the symptoms of an anaphylactic reaction are;

I. Running nose and sneezing.

II. Skin rash.

III. Dizziness, fainting, vomiting, paleness, diarrhea etc.

Melting by Decompression is occurring at or near the Mid-Atlantic Ridge. This is due to the upwelling of mantle material at the ridge, which reduces the pressure on the mantle rocks and causes them to partially melt. Melting by Heating is also occurring, as the mantle rocks are heated by the high temperatures associated with the upwelling mantle.

The experiments using the bead-F1 complex can provide insights into the mechanism of action of the F1F0-ATP synthase. Let's consider each statement in turn and see if they explain the results of the experiments.

a. The F1 complex is required to drive ATP synthesis by F1F0 transporter in vivo.

This statement is not directly relevant to the experiments using the bead-F1 complex. The experiments did not involve the synthesis of ATP, but rather the rotation of the F1 subunit in response to changes in the ATP concentration and the application of a magnetic field.

b. The F1 complex can hydrolyze ATP independently of the F0 complex.

This statement is consistent with the known mechanism of action of the F1F0-ATP synthase. The F1 complex can hydrolyze ATP to ADP and Pi even in the absence of the F0 complex. In the experiments, the rotation of the bead-F1 complex in response to changes in ATP concentration suggests that the F1 complex is indeed capable of hydrolyzing ATP independently.

c. Condensation of ADP and Pi drives rotation of the F1-ATPase y subunit.

This statement is also consistent with the known mechanism of action of the F1F0-ATP synthase. The condensation of ADP and Pi on the F1 complex drives the rotation of the y subunit, which in turn drives the rotation of the entire F1 complex. The experiments involving the application of a magnetic field suggest that the direction of rotation of the F1 complex can be reversed by an external force.

d. Reversing the direction of the F1 complex's spontaneous rotation results in condensation of ADP and Pi.

This statement is not directly supported by the experiments using the bead-F1 complex. The experiments did not measure the condensation of ADP and Pi directly, but rather the rotation of the bead-F1 complex in response to changes in ATP concentration and the application of a magnetic field.

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The statements that explain the results of the experiments using the bead-F1 complex are: statements a and d are not supported by the experiments described. Statement a is not directly tested by the experiments and statement d is not consistent with the observed results.

b. The F1 complex can hydrolyze ATP independently of the F0 complex. This statement is supported by the observation that the bead-F1 complex can rotate spontaneously in the absence of the F0 complex when there is ATP in the solution.

c. Condensation of ADP and P drives rotation of the F1-ATPase ye subunit. This statement is supported by the observation that applying a magnetic field that rotates the bead-F1 complex clockwise, while there is ADP and P in the solution, causes a clockwise rotation that lasts longer than the spontaneous counterclockwise rotations observed in the first experiment.

Therefore, statements a and d are not supported by the experiments described. Statement a is not directly tested by the experiments and statement d is not consistent with the observed results.

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Answer:

Predators

Explanation:

With natural selection, survival of the fittest can mean many things however one of the factors of which accurately describes the statement would be predators.

Answer:

c. The experiment did not support the hypothesis, so the hypothesis may need to be revised

Photosynthesis is the process by which plants take up carbon dioxide from the atmosphere and convert it into energy-rich molecules such as sugars and other carbohydrates.

During photosynthesis, sunlight is used to transform carbon dioxide and water into oxygen, which is released back into the atmosphere, and these energy-rich molecules, which are then used by the plant for nutrition.

These molecules are then passed on to other organisms through the food chain, where they are used to create new molecules such as proteins, fats, and other complex carbohydrates.

This process of using energy from previously stored molecules is known as respiration, and the carbon from the original molecules is incorporated into the new molecules, thus transferring the carbon dioxide in the atmosphere into living things.

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During cellular respiration, metabolic water would contain radioactive hydrogen.

Using the energy generated by the flow of electrons down the electron transport chain (ETC), hydrogen ions are pushed into the intermembrane gap (electricity). Through ATP synthase, the hydrogen ions will return to the mitochondria's matrix and form ATP.

When hydrogen and oxygen combine to make H2O in the electron transport chain, the last phase of cellular respiration, water is created which is known as metabolic water.

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Substances that suppress the immune system and make an organism susceptible to infections are called immunosuppressants.

Immunosuppressants are substances that suppress or dampen the activity of the immune system. They are used in medical treatments to prevent the rejection of transplanted organs or to manage autoimmune diseases where the immune system mistakenly attacks healthy cells and tissues. Immunosuppressants work by targeting various components of the immune system, such as immune cells or signaling molecules, to reduce their activity.

While immunosuppressants can be beneficial in certain medical contexts, they also have the potential to increase the susceptibility to infections. The immune system plays a crucial role in defending the body against pathogens, such as bacteria, viruses, and fungi. By suppressing immune responses, immunosuppressants can weaken the body's ability to fight off these pathogens, making the organism more susceptible to infections.

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