OK the the answer you are looking for will be the excretory system because that is the system that releases waste.
Disparities in mate attraction that alone account for differences in reproductive success An important aspect of evolutionary biology is sexual selection. The nature and scope of sexual selection, however, have been debatable since Darwin first proposed the idea of it.
Recent debate has brought the fundamental topic of what sexual selection actually is back into focus. Incorporating female-female reproductive rivalry into sexual or natural selection is one example of this.
Sex roles are determined by differences in gametes: men generate significantly more plentiful, smaller, motile gametes whereas females produce relatively fewer, more nutritious, often non-motile gametes. There will be an excess of male gametes that will not fertilize any eggs since just one gamete of each kind is necessary to generate a child.
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Choice C is correct.
WHY: In meiosis, sex cells (eggs or sperm) are produced. This means that they must have <u>half </u>the number of chromosomes in each, and they must be each <u>UNIQUE</u>.
Thus, the other options (A,B,D) cannot be correct because the product of meiosis cannot be the exact copy of the parent cells, and so cannot have the same number of chromosomes either.
There are 23 pairs of chromosomes in each cell in a normal adult human.
Answer:
it has many years on it
Explanation:
it is old so it is not new
