The peripheral nervous system a. is composed of the spinal cord and peripheral nerves b. is less important than the central nervous system c. is contained within the skull and spinal column d. includes all the nerves and neurons outside the brain and spinal cord

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above

How do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

Why should organisms reproduce more offspring than will survive? select all that apply.