for question 1.) i am pretty sure of answer a.)
for question 2.) the answer is most likely b.)
i would recommend waiting for a second opinion. just to be safe.
A. They share a common ancestor because otherwise they would not have similar arrangements of bones. It doesn't matter that humans can't fly
Answer:
Amoeba reproduces asexually through binary fission. In this process, an individual divides itself into two daughter cells. These are genetically identical to each other.
Answer:
The temperature of Earth's surface if there was no atmosphere would be over 200 degrees (F) in the daytime and below 200 degrees (F) at night.
The circulatory system and respiratory system are protected by your skin, muscles, and ribs.
