Q: What usually causes fractures on a bone? A:

OPTIONS:
- compressive stress
- shear stress
- extra weight
- excessive bending stress

Answer: excessive bending stress

Q: What term is used to describe a chemical released by an animal that affects the behavior or physiology of animals of the same species? A:

OPTIONS:
- enzyme
- isolate
- amino
- pheromone

Answer: pheromone

Q: Amino acids broken down by metabolic process are mostly recycled into new what? A:

OPTIONS:
- lipids
- hormones
- enzymes
- proteins

Answer: proteins

Q: Elements that do not need to conduct electricity are known as what? A:

OPTIONS:
- alloys
- carbonates
- silicates
- nonmetals

Answer:
nonmetals