Problem: OPTIONS:
- It decreases
- doesn't exist
- allow growth
- remains static
- competing for resources
- vary considerably
- population gravity
- rapid expansion
Q: Fact 1: Population density is the average number of individuals per unit of area or volume. Fact 2: Population density varies considerably. Given the two facts above, what does the average number of individuals per unit of area do?
Answer: vary considerably
Problem: OPTIONS:
- overheat
- protect them
- stay warm
- climate
- adding heat
- warm other animals
- stay cool
- sun's heat
Q: Fact 1: Some animals' fur grows thicker for staying warm in the winter. Fact 2: Winter is snow, winter is Christmas. Given the two facts above, why do some animals grow thicker fur around Christmas in the Northern hemisphere?
Answer: stay warm
Problem: OPTIONS:
- influenza
- sickness
- smallpox
- leukemia
- liver cancer
- food
- air
- water
Q: Fact 1: Disease has a negative impact on an organism. Fact 2: Peace is freedom from sickness and disease. Given the two facts above, what has a negative impact on an organism?
Answer:
sickness