The study of which structure was instrumental in the formation of the modern cell theory?
a. plant cell
b. animal cell
c. cell membrane
d. dna molecules

Marianne is comparing two animals: a fruit fly and a fruit bat. she asks, "do a fruit fly and a fruit bat share a common ancestor in their evolutionary history? " according to evolutionary theory, what is the answer to marianne's question?

All organisms contribute some water to the water cycle by conducting

Several billion years ago which gas was the least prevailant in the atmosphere