Problem:OPTIONS:
- muscles
- molecules
- epidermis
- tissues

Q: What component of an organism, made up of many cells, in turn makes up an organ?   A:
****
A: tissues


Problem:OPTIONS:
- adaptive
- intuitive
- acquired
- innate

Q: Behaviors that occur naturally and are not learned are called what?   A:
****
A: innate


Problem:OPTIONS:
- acid reaction
- mixture
- hypodermic reaction
- chemical reaction

Q: What is the name of the process that changes some chemical substances into others?   A:
****
A: chemical reaction


Problem:OPTIONS:
- water evaporation
- nerve exchange
- cell exchange
- waste exchange

Q: Echinoderms have a unique system for gas exchange, nutrient circulation, and locomotion called the water vascular system. the system consists of a central ring canal and radial canals extending along each arm. water circulates through these structures allowing for gas, nutrient, and this?   A:
****
A:
waste exchange