Q: Fact 1: Tunicates reproduce sexually. Fact 2: Sea squirts are the best known tunicates. Given the two facts above, what reproduces sexually?

OPTIONS:
- orchids
- mountains
- viruses
- humans
- sea squirts
- Most plants
- h2o
- insects

A: sea squirts

Q: Fact 1: Harming an animal species causes that animal 's population to decrease. Fact 2: Killing snakes is more than unnecessary and harmful to the ecosystem. Given the two facts above, what can killing snakes cause?

OPTIONS:
- Snake population decrease.
- DNA damage and mutations
- Snake population variation.
- death and devastation
- dead organisms
- Snake population increase.
- Destroy crops
- Snake population stabilization

A: Snake population decrease.

Q: Fact 1: Thyroid hormones increase the rate of metabolism in cells throughout the body. Fact 2: Thyroid hormone is made by the thyroid gland. Given the two facts above, what increases metabolism in cells throughout the body?

OPTIONS:
- lymph nodes
- aerobic capacity
- puberty
- thyroid gland
- Smoking
- smoking cigarettes
- cells
- heat energy

A: thyroid gland

Q: Fact 1: Plants exhibit phototropism, or growing toward a light source. Fact 2: Green plants use light as their primary energy source. Given the two facts above, phototropism means growing toward what?

OPTIONS:
- rocks
- energy
- retina
- light
- heat
- The Sun
- plants
- sand

A:
light