Q: Q: Many viral diseases can be prevented by giving people what? A: | OPTIONS:
- Lactose
- pesticides
- cancers
- vaccines
A: vaccines

Q: Q: Which disease causes cells to divide out of control A: | OPTIONS:
- autoimmune diseases
- mutation
- arthritis
- cancer
A: cancer

Q: Q: What of most species are resistant cells that can survive harsh conditions? A: | OPTIONS:
- gonads
- phenotypes
- subtypes
- zygotes
A: zygotes

Q: Q: Friction causes the molecules on rubbing surfaces to move faster, which produces what? A: | OPTIONS:
- life
- precipitation
- cold
- heat
A: heat