Why do we need to protect our oceans from pollution

The model illustrates a process by which a substance is taken up by a cell

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 .

Which enzymes break down carbohydrates?