What happens a few days after fertilization?
a. the baby can be felt moving.
b. the eyes have developed.
c. a zygote forms.
d. the placenta begins to form.
-apex

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Someone with these questions! pls 30 pts

How is anaerobic respiration affected by changes in temperature? (5 points)based on the conditions of early earth, what conclusion can you draw about the amount of anaerobic respiration that was occurring at earth’s beginning? explain your answer.(5 points)if there was a sudden drop in temperature after the evolution of the first living cells, predict how that might have affected the changes in the atmosphere and the evolution of cyanobacteria and other autotrophs. explain your answer. (5 points)