Which of the following is a function of the vertebral column? Select one: a. It supports the weight of the body. b. It allows sp
inal nerves to exit the spinal cord. c. It serves as a passageway for the cranial nerves. d. It contains numerous foramens for the passageway of blood vessels. e. It protects the brain.
Chemical nutrients and energy tend to flow in the same direction for most of an ecosystem. The big difference is that the chemical nutrients are ultimately recycled in the ecosystem while the energy is ultimately lost from the ecosystem to the universe at large. Energy in any ecosystem ultimately comes from the Sun