Answer:
Hi. I think the answer is A.
DNA was discovered during 1953.
Photosynthesis does all those things. Releases energy in the form of ATP, stores energy in glucose molecules, performed by producers, and performed by consumers.
A tetrad consists of 2 homologous chromosomes each of which is made up of 2 sister chromatids
B) Flu is easily transmitted from person to person.
If there is a very big population density, it means more people are present in a small amount of space. Thus they will come into contact more often and the virus is likelier to spread more rapidly.
