Fact 1: Some parasites kill their host, but most do not. Fact 2: Killing means death. Given the two facts above, what do some parasites do to their hosts?
OPTIONS:
- Move to another area
- harm them
- leeches
- Damages them
- impregnate
- cause their death
- They may not survive.
- ticks

Answer: cause their death

Fact 1: Thyroid hormones increase the rate of metabolism in cells throughout the body. Fact 2: Metabolic rate is the rate at which food is burned for energy. Given the two facts above, what do thyroid hormones increase?
OPTIONS:
- Size of ego
- cause people to become sick.
- Rate of energy consumption
- Skill of human
- aerobic capacity
- Plants growth
- Sense of smell
- Helps them grow

Answer: Rate of energy consumption

Fact 1: Energy is passed up a food chain or web from lower to higher trophic levels. Fact 2: Each trophic level has less biomass and a loss of energy content. Given the two facts above, what happens to energy as it goes up levels?
OPTIONS:
- Decibels
- heat produced
- decreases
- Evaporation
- It expands
- radiation
- glucose
- dehydration

Answer:
decreases