Answer:
B. Individuals within a population exhibit genetic variation and those that are best adapted to their environment survive.
Explanation:
Nature poses challenges time to time to all the living organisms in the form of harsh climate, scarcity of food, natural disasters such as floods, drought, etc. Such challenges enable some organisms to survive better than the others in the same environment and are said to be selected by the nature.
This capability to survive is also termed as fitness by some scientists. Darwin however only referred to the reproductive fitness which means those organisms who are better fit in their environment produce more number of offspring than others.
Darwin used the phrase "Natural selection" for this and said it is the natural selection which is responsible for evolution.
The interphase prepares the cell to divide by enlarging the cell so that when it does divide, there will be space for the nucleus (if it applies to the cell) and the organelles. It will allow the cell to be able to function and later divide on its own. It replicates DNA so that the two future daughter cells will have an even number of chromosomes to remain the cell type that it's parent was.
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A and B. Because if heart cells were located in your brain, your brain would not perform the right function. And B because if cells perform different functions and are in the wrong spot im your body it wouldnt work.
Answer:
A decomposer is found at the end of a food chain.