It’s because unlike twins the regular siblings aren’t born on the same date or a couple minutes apart, but rather a couple years old or younger.
Answer:
find the right answer
Explanation:
if the control group is nit included in the experiment it would be hard to get the right solution(answer).
I think hopefully this helps.
Physical means on the outside so what does it look like on the outside it has spots its a kind of cat it has claws those kinds of things
<span>Without variation, there is no difference between members of a population to be "selected for" in the first place. This is a basic tenet of natural selection. A new trait must arise in order to advance or decrease the fitness of the individual, and hence, its ability to pass on its genes.</span>
