Which conclusion does the fossil record support? a. species have changed over time. b. traits acquired during a lifetime are passed to offspring. c. earth’s organisms have not changed over time. d. all of earth’s organisms were formed at the same time.

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

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

Dna is colied into chromosomes in a cell