Answer: the actual size of the population is relatively small.
Explanation:
In relatively small populations, the phenomenon of genetic drift significantly may change the frequencies of the alleles in that population. This consequently affect the genetic structure of the population in context.
Whereas big populations doesn't significantly feel the shakings of this phenomenon because her effects are small and insignificant.
Answer:
Plant cells have a cell wall, but animals cells do not.
Plant cells have chloroplasts, but animal cells do not.
Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present.
Explanation:
Gradually as the result of many intermediate steps is my answer because as life on Earth for example started off with simple atoms making molecules, and as the time went past more complex compounds were be produced. And from there later on unicellular organisms started appearing. Nothing in evolution that I know of happens in a short time, at least from the human perspective.
Answer:codominance
Explanation: Both genes will be expressed equally without overshadowing the other