The development of a zygote into a blastula is called

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.

Environmental differences within ecosystems are generally caused by

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere