Classify the following as either a specific or a nonspecific defense of the body's immune system. • skin
• macrophages
• bacteria • mucous
• fever
• b cells • t cells
• antibodies

Coral have a symbiotic relationship with what in order to eat?

What happens to the average kinetic energy of water molecules as water freezes?

What is a food chain? a. different animals located in different communities b. energy transferred from the sun to plants and then to a series of living things c. rows of crops, such as lettuce, in a field d. animals using one another as food for energy and growth