D) Amphibia was considered to be the first to develop lungs
C because oxygen was a byproduct of photosynthesis and proved to be EXTREMELY important in the atmosphere.
There are a few different names for Mitosis: Cell division and cellular division (these are the words that I can think of) I hope this helps.
Answer:
A retrovirus is an RNA virus that is duplicated in a host cell using the reverse transcriptase enzyme to produce DNA from its RNA genome. The DNA is then incorporated into the host's genome by an integrase enzyme. The virus thereafter replicates as part of the host cell's DNA.
Answer:
That is quite a gene pool you two have
Explanation:
