Practice: Draw your own simple food web with the following organisms:
Grasses, hawk, mouse, snake, grasshopper, rabbit, squirrel, butterfly, frog, fox

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

About __ of the mass of the cell is water

Injuries in the environment are a result of