15. which of the following accurately reflects the beliefs on earth's early history?
a. scientists believe that microspheres nearly prevented the development of early life.
b. scientists believe oxygen was plentiful in the early atmosphere.
c. scientists believe the early atmosphere lacked the oxygen necessary to support modern human life.
d. scientists believe that dna may have existed before rna

Which element is found in both dna and proteins

Pls need ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

Match each medication with its description.