Symbiosis and Ecosystems Quiz

What is symbiosis?

• An interaction in which one organism kills another for food.

• A close relationship between two species that benefits at least one of the species.

• A relationship between two organisms of different species where one benefits and the other is harmed.

• An organism that hunts other animals for food.

What does the term 'commensalism' refer to?

• A relationship between two species in which both species benefit.

• A relationship between two organisms in which one organism benefits and the other is unaffected.

• An organism that is killed and eaten by another organism.

• An animal that hunts other animals for food.

Which term describes a relationship where both species benefit?

• Parasitism

• Commensalism

• Mutualism

• Predation

What is parasitism?

• A relationship where both organisms are harmed.

• A relationship where one organism benefits at the expense of the other.

• A relationship where both organisms benefit.

• An interaction where one organism kills another for food.

What is the role of a predator in an ecosystem?

• An organism that is killed and eaten by another organism.

• An organism that makes its own food.

• An animal that hunts other animals for food.

• An organism that obtains energy from the foods it eats.

What is a food chain?

• A community of organisms where there are several interrelated food chains.

• A series of steps in which organisms transfer energy by eating and being eaten.

• The ability to do work.

• An organism that eats secondary consumers.

What is the definition of 'energy' in the context of food webs and trophic levels?

• An organism that eats primary consumers.

• A series of steps in which organisms transfer energy by eating and being eaten.

• The ability to do work.

• An organism that can make its own food through the process of photosynthesis.

Which of the following best defines a producer (autotroph)?

• An organism that eats producers (the plant life), typically an herbivore.

• An organism that eats secondary consumers, typically an omnivore.

• An organism that can make its own food through the process of photosynthesis.

• An organism that obtains energy from the foods it eats.

What is photosynthesis?

• An organism that makes its own food (producers, plants).

• An organism that obtains energy from the foods it eats.

• Conversion of light energy from the sun into chemical energy.

• A predator residing at the top of a food chain or food web or trophic level, upon which no other creatures hunt or eat it.

What is an apex predator?

• An organism that eats secondary consumers, typically an omnivore.

• A predator residing at the top of a food chain or food web or trophic level, upon which no other creatures hunt or eat it.

• An organism that can make its own food through the process of photosynthesis.

• An organism that eats producers (the plant life), typically an herbivore.