Almost all weather occurs in the a. troposphere. c. mesosphere. b. stratosphere. d. thermosphere.

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity