Knowing what you know about how a substance travels in diffusion, in order for carbon dioxide to leave the blood and enter the alveoli, there would be a [ HIGHER or LOWER ] concentration of carbon dioxide in the alveoli compared to the blood.

The body is protected against harmful flu viruses by

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

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 .