I'm pretty sure the answer is B
Answer:
I'm glad you asked!
Explanation:
Since there is no common ancestor ,that makes the structures analogous or structures that evolved independently in two living organisms to serve the same purpose.
Answer:
The heart pumps blood through the circulatory system, delivering needed materials (glucose, oxygen) and picking up waste (carbon dioxide) from cells all over the body. Organs systems work together to efficiently and effectively provide all body cells with their basic needs to carry out life functions.
The answer is True because if you look at a periodic table it is arranged in the atomic numbers