Look at the list of mixtures and select the ones that could be separated by magnetism. check all that apply. beach sand nickel ore trail mix iron-fortified vitamins freshly mined coal

Now it's your turn to investigate human impact around the world. grab your virtual lab coat and put on your environmental science hat. you will be taking a trip around the globe to explore three locations. at each location, you will investigate the cause and effect relationships of deforestation, desertification, and urbanization. you will also gather evidence of how these factors have impacted the environment over time

What is the number of phosphates in an atp molecule

1. which of the following transport mechanisms utilizes energy? a. osmosis b. diffusion c. facilitated diffusion d. endocytosis