Bottleneck is an example of a genetic drift that happens when the size of a population is severely reduced.
Answer:
B
Explanation: First degree only makes the skin turn red
Answer:
D.
Explanation:
She's trying to find the affect different shapes have on the distance the plane flies, not the affect different types of paper have on distance. If she were to use different paper for each plane she'd be testing two variables instead of one.
hope this helps :)
I donot know but i think it is white blood cell