Answer:
The second choice
Or 3rd one
Explanation:
Only in the reproductive cells
In all of it cells
Answer: creating an ozone layer to shield life from UV rays
Cynobacteria or blue green algae is the strain of bacteria, which was able to produce oxygen in the primitive earth as a result of photosynthesis. The abundance of oxygen in the atmosphere formed the ozone layer in the upper atmospheric layers, these layers are protective enough to provide a shield against the harmful UV radiations incident on earth coming from the sun.
Answer: The answer is C
Explanation:
After each PCR cycle, the amount of DNA does not increase in a linear manner
Answer:
hey Rebecka the answer is in the photos. thank me later, also you should cut me some cucumbers
Explanation:
