Given that bacteria can reproduce very quickly , what prevents them from overpopulating the world ; explain

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.

What must be true for natural selection to heppen

What was the land like over 500 million years ago? what was under the sea?