Describe how crossing-over, independent assortment, and random fertilization lead to genetic variation.

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

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

Moving down the ramp from 6 meters to