Question 2 Membrane Transport is the movement of substances across the Plasma Membrane. Which of the following types requires energy

Explanation:

active transport is the movement of substances across the membrane using energy from adenosine triphosphate (ATP)

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: