3. What are the advantages of using renewable energy sources to generate electricity? a. Chemicals are released into the atmosphere.
b. It is expensive to maintain energy facilities.
c. It is produced by sustainable substances.
d. They are much less expensive than nonrenewable energy sources.

Agene in a type of bacteria when the ses bacteria reproduce asexually this mutation can only be inherited by

When water freezes, it . contracts expands

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.