Why are some species of insects exempt from being protected under the US Endangered Species ACT of 1973? A)
because their populations have not been affected by harvesting
B)
because they are already protected
C)
because they are pests and can presents risks to humans
D)
because they reproduce in great numbers

Choose the molecule that is described by each phrase. energy used during long activities:

!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.

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