Fact 1: Ethologists usually study how animals behave in their natural environment. Fact 2: HA habitat is the kind of environment in which a certain organism normally lives. Given the two facts above, ethologists usually study how what behaves in their habitats?
OPTIONS:
- poachers
- parasites
- vegetation
- seasons
- hunters
- fishermen
- animals
- plant life

Answer: animals

Fact 1: Competition may cause animals to fight towards members of their own species. Fact 2: Competition between male animals is common in nature. Given the two facts above, what is common in males of the same species?
OPTIONS:
- competition
- dancing
- mating
- traits
- females
- biceps
- Allergies
- hormones

Answer: competition

Fact 1: Cells are the microscopic building blocks of organisms. Fact 2: Just like bricks are the building blocks of a home, atoms are the building blocks of matter . Given the two facts above, cells are the microscopic building bricks of what?
OPTIONS:
- floaties
- Plants growth
- vegetation
- cells
- ferns
- organisms
- matter
- fillials

Answer:
organisms