7. The role of an organism in the ecosystem is called its​

In sexual reproduction, a diploid zygote is formed by the fusion of two structures: a haploid egg and a haploid sperm. These cells, also known as gametes, each contain one set of chromosomes, and their fusion results in a zygote with a complete diploid set of chromosomes.

In sexual reproduction, the structures that fuse to form a diploid zygote are the haploid egg and the haploid sperm cells. These cells are also referred to as gametes. Each of these gametes is haploid, meaning they contain one set of chromosomes in their nuclei. The zygote, which is the cell that results after the fusion of these gametes, is diploid and contains two sets of chromosomes. For example, in animals, sexually reproducing adults form these haploid gametes from diploid germ cells. The fusion of these gametes gives rise to a fertilized egg cell, or zygote.

This process of fusion, called fertilization, ensures that the offspring has a complete diploid set of chromosomes. Later, the zygote will undergo multiple rounds of mitosis to produce a multicellular offspring, which is genetically unique.

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The structures that fuse to form a diploid zygote during sexual reproduction are the haploid egg and sperm cells. They fuse together during fertilization to create a new individual with a complete set of chromosomes.

The structure that fuses to form a diploid zygote during sexual reproduction is the haploid gametes, specifically the egg and sperm. In this process, the haploid sperm and egg cells fuse, leading to the formation of a diploid zygote. The diploid zygote contains the combined genetic material from both parents, which is vital for creating a new individual. To ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. This fusion of gametes is called fertilization.

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This submarine Mid-ocean Ridge owes its formation to the movement of the continental plates on either side of the ocean. As these plates slowly separate, they leave gaps in the earth's crust. This allows molten rock from beneath the earth's crust to reach the surface, forming a new part of the ocean floor.

Answer:

The stretching lithosphere is pushed up as the plate moves apart

Explanation:

Divergent tectonic plates involves moving apart of tectonic plates. At the divergent boundary plates separate from each other . An example is the oceanic ridge formed in the Atlantic oceanic crust.  

The diverging movements of these plates cause magma to be introduce from the oceanic ridge to form a new lithospheric crust. Volcanoes  are present in this kind of boundary.  The magma may erupt to form volcanoes.

Divergence occurs mainly between oceanic crusts and continental crusts. The moving apart of the plates causes an exposure of the aesthenosphere semi liquid rocks to the surface . The up welling of this rocks result to formation of new crust, stretching the Lithosphere in the process.

The picture above illustrate diverging plates.

Answer:

The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.

Speciation is the evolution of one species into two different kinds, and when they become isolated, that is the final step, since they cannot interbreed any longer.

Answer: The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.

Explanation:

Speciation is a process of development of new species from the parent species. This occurs when the members of the population get separated due to geographical barriers such as river, mountains and others. Or if the members of the same species diverge on the basis of morphological, physiological, reproductive and behavioral changes.

The isolated members in the end in the cases of geographical separation becomes diverge or different species as they cannot interbreed with the members of the parent species due to the adaptations according to the new environment.        

Answer:

Cells use lipids to get energy only when carbohydrates are not available.

lipids hope this will help you

Answer:

the answer is B

Explanation:

One forms glucose and the other breaks it down.

Energy is defined as the ability to do work which for biology purposes, can be thought of as the ability to cause some kind of change.

Energy can take many different forms:

Hence, B option is correct.

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The correct answer is D. 1 AU

Explanation:

In astronomy, the distance from Earth to the Sun that is also used to measure the distance from the sun to other planets or any other elements in the space is known as AU or Astronomical Unit, this covers around 150 million kilometers and is one of the most used units especially to describe the distance of objects in our solar system. This also implies 1AU refers to the distance of the Earth to the Sun; although the distance varies slightly depending on the position of the Earth in the orbit. Therefore, the unit that is closest to the distance of the Earth to the sun is 1 AU.

1AU is the astronomical units closest to the distance of the earth to the sun.

Below is the mean distance from sun to each planet  in Astronomical unit (AU)

The Astronomical unit, AU is the means distance from the earth to the sun. Actually, the distances between from the earth and the sun varies and primarily depend on the time of the year. This is simply because the earth orbit within the sun is certainly not a perfect circle. The astronomical distance is about 93 million miles.

The distances within the solar system are measured in Astronomical units (AU). The innermost planet, mercury has a mean distance of approximately 0.4 AU to the sun. Also, Neptune, one of the known distant planets has a radius of approximately 30 AU. However, the parsec is used to express the distance the Interstellar and intergalactic.

The first month, January is the time that the earth is closest to the sun and far away from in July. In January the distance from the earth to the sun is about 0.983 AU and the mean or average distance from the earth to the sun is approximately 1.017 AU in July.

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Answer:

B. Second

Explanation:

In the second trimester the bony parts of the skeleton begin to form .

Answer:

A. First Trimester

Explanation: