Why is earth’s atmosphere rich in oxygen and poor in carbon dioxide, whereas the reverse is true on venus? what would happen to earth’s oceans if earth were a little bit closer to the sun?

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.

Coral have a symbiotic relationship with what in order to eat?