Which of the following scenarios best illustrates that two organisms likely share a common ancestor? A- Ducks and platypuses both have developed bills for mouths.
B- Yeast can use the human version of a yeast gene to repair itself.
C- Arctic foxes and Arctic hares grow white coats as camouflage in winter.
D- Protozoans can enter the bloodstream and multiply in the liver, causing malaria.

Vegetation that grows along the floors of tropical and temperate forests is called undergrowth. how is the undergrowth of a tropical rain forest most likely to differ from the undergrowth of a temperate forest? a. a tropical rain forest's undergrowth most likely experiences periods of dormancy during colder weather. b. a tropical rain forest's undergrowth most likely experiences periods of dormancy during rainy weather. c. the undergrowth of a tropical rain forest most likely requires less sunlight. d. the undergrowth of a tropical rain forest most likely requires more sunlight.

What are the three types of counseling established by marine corps policy?

What enzyme is most important for dna replication and why?