The answer is D, photosynthesis and respiration.
—Evidence—
Oxygen is a byproduct of photosynthesis and, correspondingly, carbon dioxide the byproduct of respiration.
Oxygen gives our cells the ability to break down food in order to get the energy we need to survive. Although other animals may use different organs to breathe with, they all get oxygen into their bodies through respiration.
Answer:
Ii
Explanation:
Because it has one dominant allele <em>(I)</em> and one recessive allele <em>(i)</em>.
It must be able to replicate it's DNA
For future reference, please organize your questions better :)
Favorable
Traits that enhance survivability and reproduction, to be more specific.<span />
