What blood vessel brings the blood from the lower pat of the body back to the heart?

inferior vena cava

Explanation:

the inferior vena cava brings deoxygenated blood back to the heart from the lower part of the body.

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.