Males of different species of the fruit fly Drosophila that live in the same parts of the Hawaiian Islands have different elaborate courtship rituals. These rituals involve fighting other males and making stylized movements that attract females. What type of reproductive isolation does this represent?
behavioral isolation T/F

True

Explanation:

Behavioral isolation is a prezygiotic mechanism that occurs when two similar populations of a species that can interbreed evolve different behaviors that are unique and are not recognized by others. Behaviors such as courtship rituals is developed  differently by each of the subpopulations, of which prevents one of the subpopulations from mating with the other, due to both species’ inability to recognize each other’s courtship rituals.

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.