What happens a few days after fertilization? a. the eyes develop. b. the blastocyst forms. c. the baby can be felt moving. d. cells have started differentiating.

Many kangaroo rats live in the sonoran desert of the southwestern united states. they have a variety of adaptations for living in the desert. under which circumstance would the kangaroo rats of the sonoran desert be most likely to develop new adaptations by natural selection?

Does mitochondria still meet the definition of a eukaryote why or why not?

Acommon kind of mechanical weathering is called