50 points if correct!

choose which diagram best represents season changes on earth caused by the relationship between the earth and sun.

What is avogadro’s number, and why is it useful

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.