What happens to the blood when the pulmonary artery pumps it into the lungs? a. blood is sent to the rest of the body. b. oxygen is unloaded and carbon dioxide is loaded into the blood. c. carbon dioxide is unloaded and oxygen is loaded into the blood.

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .