PLEASE HEL Human blood types A and B show codominance. The alleles determine what kind of antigens are produced on the red blood cells. What kind of blood cells are produced by a person that has inherited an A allele and a B allele blood?

type A

type B

both type A and type B

neither type A nor type B

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Which label correctly identifies what x represents in the concept map?