Please help this is due today List and explain the four factors of Darwin’s Theory of Natural Selection.

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.

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

What controls activities within a eukaryotic cell?