Because it is able to trap heat or rather absorb infrared. ... I think
Pulmonary vein. It enters your pulmonary vein and then enters your left atrium.
I hope that helped :)
Answer:
The bones of the skeletal system protect the body's internal organs, support the weight of the body, and serve as the main storage system for calcium and phosphorus. The muscles of the muscular system keep bones in place; they assist with movement by contracting and pulling on the bones.
Explanation:
<span>Mutations that increase fitness is type of mutations do scientists look for in a molecular clock. </span>