What does a receptor protein do? a. allows one or a few specific molecules to pass across the membrane b. allows a specific molecule to bind to it because of its shape c. allows the body to distinguish between its own and other cells d. allows cell-to-cell adhesion and communication

The energy of blowing wind can be harnessed to create electricity. why is wind considered a renewable energy source? a) wind does not cause destruction of the environment.b) wind turns the blades of a windmill that creates electricity.c) wind provides only a very small amount of electricity to the united states.d) wind comes from atmospheric conditions that are available indefinitely.

Individuals do not compete directly for resources, but are prey for the same predator

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?