1.) What is an organism’s niche? a.) the physical environment of the organism
b.) the role that an organism plays in the environment
c.) the traits that increase an organism’s survival
d.) the competitors and predators of the organism

2.) Which describes the habitat of a frog?
a.) color for camouflage
b.) prey for snakes
c.) eats insects
d.) marshes and ponds

3.) Elephants shape their environment in many ways. They can change a forest to a grassy field or dig a hole that might become a pond. They clear large amounts of vegetation, which removes habitats for some organisms but makes the area inviting for other organisms. Which best describes possible interactions of elephants with the surrounding ecosystem?
a.) positive
b.) negative
c.) neither positive nor negative
d.) both positive and negative