What is an interaction called where one organism kills and eats another?

• Symbiosis

• Competition

• Predation

• Cooperation

What is the struggle between organisms to survive in a habitat with limited resources called?

• Cooperation

• Competition

• Symbiosis

• Predation

What can have a major effect on the size of a population?

• Migration

• Predation

• Photosynthesis

• Weather

What term describes the role or how an organism makes its living?

• Habitat

• Ecosystem

• Niche

• Community

What is commensalism?

• A relationship where both species benefit

• A relationship where one species benefits and the other is neither helped nor harmed

• A relationship where one species is harmed

• A relationship where both species are harmed

What includes the type of food an organism eats and how it gets its food?

• Habitat

• Niche

• Ecosystem

• Community

Which of the following is NOT a major type of interaction among organisms?

• Competition

• Predation

• Symbiosis

• Photosynthesis

What is the term for the physical conditions an organism requires to survive?

• Habitat

• Niche

• Ecosystem

• Community

What is the main benefit for a parasite in a parasitic relationship?

• It gains protection

• It gains nutrients

• It gains companionship

• It gains territory

In which type of symbiotic relationship do both species benefit?

• Parasitism

• Commensalism

• Mutualism

• Predation