Answer:Specific proteins are made only at certain times in certain cells.
Explanation:
Answer:
C. Traits present in the last common ancestor of a certain group of species under consideration.
Explanation:
Ancestral character traits are the one that is present in the last common ancestor and all of its descendant groups. For example, the presence of the vertebral column is an ancestral trait for all the vertebrate groups such as birds and mammals as it was present in their last common ancestor and is also shared by them.
The best answer to fill in the blank would be A).
Answer:
Pulmonary ventilation is known as breathing
I believe it's the <span>nucleus.</span>
