Sharks and dolphins are not closely related but have many similar features due to the environment where they are found. This is an example of:

A:Convergent evolution

B:Artificial selection

C:Natural selection

D:divergent evolution

The cellular plasma membrane is selectively permeable, which means some materials move through it while others cannot. the movement of materials into and out of the cell is called membrane transport. this activity will you identify the different mechanisms of membrane transport