Are turtles multicellular or unicellular?

A trophic level is each step in a food chain that demonstrates the transfer of energy.

A trophic level is any feeding level in a food chain through which energy in the form of food is transferred in an ecosystem. A food chain contains five main trophic levels which are; (i) primary producers (autotrophs; plants and algae), (ii) primary consumers (herbivores), (iii) Secondary consumers (carnivores and omnivores), (iv) Tertiary consumers (carnivores and omnivores) and (v) Apex predators.

A 'trophic level' refers to each step in a food chain, showcasing the energy transfer from one organism to another. The energy transfer starts with the Sun and travels through different organisms, from producers to consumers, providing an understanding of a food chain.

In the field of Biology, each step in a food chain, demonstrating the transfer of energy from one organism to another, is referred to as a trophic level. This energy transfer begins with the Sun, which provides energy to producers like plants. Herbivores, or primary consumers, consume these plants and gain energy.

Then, carnivores, or secondary and tertiary consumers, eat these herbivores and other carnivores to get energy. The energy transfer continues through each trophic level, demonstrating the concept of a food chain.

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Tendons! Hope this helps :)

Answer: They convert atmospheric nitrogen (N₂) to organic compounds including ammonia (NH₃).

Trichodesmium is cyanobacteria which converts atmospheric nitrogen into ammonia which is then used by other organisms present in the nitrogen poor water. They are found in the nutrient poor tropical and sub tropical ocean waters .They account for approximately half of the nitrogen fixation in marine system all over the world.

Final answer:

Trichodesmium is important to other organisms in nitrogen-poor waters because it converts atmospheric nitrogen into ammonia, providing an essential nutrient that supports marine life and maintains the nitrogen cycle in these regions.

Explanation:

Trichodesmium is a nitrogen-fixing cyanobacteria that plays a critical role in marine ecosystems, particularly in nitrogen-poor waters. As a diazotroph, this colonial cyanobacteria can convert atmospheric nitrogen (N₂), which is abundant but unusable by most organisms, into ammonia (NH₃), a form of nitrogen that is readily available for use by plants and phytoplankton. This process is crucial for supporting life in regions of the ocean where inorganic sources of nitrogen are scarce, as it helps maintain the nitrogen cycle and supports the base of the food web.

In nitrogen-poor waters, organisms depend on nitrogen fixers like Trichodesmium to contribute to the primary productivity of the ecosystem. The fixed nitrogen provided by Trichodesmium is essential for the synthesis of amino acids, nucleic acids, and other vital organic compounds within marine organisms. Therefore, without such diazotrophic cyanobacteria, many marine ecosystems would struggle to thrive due to the lack of accessible nitrogen.

Hence, the correct answer is they convert atmospheric nitrogen (N2) to organic compounds including ammonia (NH3).

The prokaryotic cell cycle is different from the eukaryotic cell cycle because in the prokaryotic cell cycle cell division does not involve the division of the cell nucleus.

The cell cycle may be defined as the process a cell goes through each time it divides. The cell cycle consists of a series of steps during which the chromosomes and other cell material double to make two copies.

Prokaryotic cell lacks a nucleus and well-defined cell organelles. Due to the deficient nucleus, a prokaryotic cell never involves the nucleus in its division.

Therefore, the prokaryotic cell cycle is different from the eukaryotic cell cycle because in the prokaryotic cell cycle cell division does not involve the division of the cell nucleus.

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Pure water is neutral because it has equal concentrations of H+ and OH- ions, resulting in a pH level of 7, which is considered neutral on the pH scale.

The justification for pure water being neutral is A. Water has equal concentrations of H+ and OH- ions, which results in a pH level of 7. The pH scale ranges from 0 to 14, with 7 being considered neutral. Lower than 7 is acidic and higher than 7 is basic or alkaline. Therefore, since water has a pH of 7, it's considered neutral.

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Answer:

In humans, blood group is determined by three alleles [tex]I^{A}[/tex], [tex]I^{B}[/tex], and [tex]i[/tex].

[tex]I^{A}[/tex] and [tex]I^{B}[/tex] are co-dominant whereas [tex]i[/tex] is recessive to other two.

Thus, if a person with blood group O produces offspring with blood group B then the other parent must contain [tex]I^{B}[/tex] allele.

The genotype of other person can be [tex]I^{A}I^{B}[/tex], [tex]I^{B}I^{B}[/tex], or [tex]I^{B}i[/tex].

There is only one condition in which the person can have offspring with blood group O that is, when the other parent is [tex]I^{B}i[/tex].

In this condition, the probability of an offspring to have blood group O is 50%.

In other conditions, the probability of an offspring to have blood O is 0%.

In the best case scenario where the type B parent is heterozygous (BO), there is a 50% probability that the offspring produced with a type O blood person (ii) will have type O blood. If the type B parent is homozygous (BB), all offspring would be type B with no possibility of having type O blood.

When a person with type O blood (genotype ii) produces offspring with a person with type B blood, the offspring's blood type depends on the genotype of the type B parent. Provided the type B parent is heterozygous (genotype BO), which is the best case scenario for offspring to have type O blood, the possible genotype combinations would be Bi and iO.

The offspring would have a 50% chance of inheriting the O allele from the type O parent (genotype ii) and the O allele from the type B parent (BO), resulting in a genotype of type O (ii) for the offspring. Consequently, the offspring would have a 50% probability of having type O blood.

If, however, the type B parent is homozygous (BB), then all offspring would inherit one B allele and would not have the chance of being type O. Thus, they would all be type B.

The knee cap is called Patella.

Result: knee cap is called Patella.

If an area has all the wolves that it can support, the wolf population has reached its carrying capacity.

In conclusion, if an area has all the wolves that it can support, the wolf population has reached its carrying capacity.

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Answer:

Option D, oxidized

Explanation:

The NADH gets oxidised when it passes its electrons into the Electron Transport System

Oxidization is a process in which one element or compound loses its electron to other chemical element or compound thereby itself getting oxidised and reducing the other one (the one who gains the electron).

Here in the electron transport system, the NADH loses or donates its electron to the Electron Transport System thus chemically it gets oxidized.

Hence, option D is correct

The pair of molecules that are broken down by the cell to release energy is known as ATP and glucose. Thus, the correct option for this question is C.

The process that is known for this liberation of energy by the breaking down of molecules of ATP and glucose is known as Cellular respiration.

Cellular respiration may be characterized as a type of chemical process through which oxygen is significantly utilized in order to make energy from carbohydrates such as glucose. Glucose and ATP are high-energy compounds that provide immediate energy to the cells in order to facilitate their metabolic functions.

Therefore, the pair of molecules that are broken down by the cell to release energy is known as ATP and glucose. Thus, the correct option for this question is C.

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Answer: Mitochondria.

Explanation:

Mitochondria is a double membrane bound organelle found in the cytoplasm of the cell. The main function of mitochondria is to produce energy currency ATP (adenosine triphosphate) which is used by every cell of the body to perform metabolic activities.

The energy production takes place by the process known as cellular respiration in the presence of oxygen by the breakdown of glucose.

The mitochondrion is the part of the cell that supplies energy. It is often referred to as the 'powerhouse of the cell' as it turns glucose into ATP, the cell's energy-carrying molecule via cellular respiration.

The organelle that supplies the cell with energy is the mitochondrion. Among your options, ribosome is responsible for the synthesis of proteins, the cytoplasm hosts various cell processes and the nucleus contains the cell's genetic material. However, it's the mitochondrion, often described as the powerhouse of the cell, that provides the energy. It does this by breaking down glucose into ATP (adenosine triphosphate) through a process called cellular respiration. ATP is the molecule that carries energy within cells and is vital for cell functions.

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Final answer:

The large ground finch's short, strong beak is an adaptation resulting from natural selection and adaptive radiation, allowing it to crack hard seeds effectively.

Explanation:

The short, strong beak of the large ground finch Geospiza magnirostris is an example of adaptive radiation and natural selection. Through processes described by Charles Darwin, finches on the Galápagos Islands have adapted their beaks over generations to exploit different food sources effectively. For the large ground finch, its beak has evolved to crack open hard seeds, making it thicker and stronger compared to finches that eat other types of food, like insects or nectar.

Observations by researchers such as Peter and Rosemary Grant provide evidence for this evolutionary change. They reported that during a drought, finches with larger beaks could eat more types of seeds, and hence were more likely to survive. Their offspring also tended to have larger beaks, showing evolution by natural selection.

Answer:

The answer is Variations :)

Answer:

d.

It flows through and is used by ecosystems.

Explanation:

Answer:

The answer are:

- Respiration.

- Photosynthesis.

Explanation:

Answer:

Microtubules play a role in the migration of chromosomes to opposite ends of a dividing cell during anaphase. (Ans. D)

Explanation:

In mitosis after the metaphase stage, anaphase stage occurs where replicated chromosomes are divide and the copied chromosomes migrate to the opposite poles of the cell.

In anaphase stage two phases are occurs:

Anaphase A: In this phase chromosome moves to pole of a dividing cell, this movement is produced by the action occurs in kinetochores and a subclass present in microtubules present in kinetochores are known as kinetochore microtubules.

Anaphase B: In this phase separation of dividing cell poles from each other is occurred. This movement is produced by the action of inter-polar microtubules and astral microtubules.

Answer:

C3H8

Explanation:

Answer:anaphase of meiosis I

Explanation: