5. Which of the following pieces of evidence for evolution contain both homologous and vestigial structures? a. fossil record
b. comparing early development (embryos)
c. comparing DNA evidence
d. comparing body structures (anatomy)

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

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

Explain what is meant by a river’s load, and describe how the load is carried.