The digestive system and the excretory system both excrete waste.

What causes temperature extremes in the desert

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 process of living things produces water that enters the water cycle