Ecosystems and Interactions Quiz

What do you call organisms that break down dead organic material?

• Producers

• Consumers

• Decomposers

• Herbivores

In a food web, what do arrows represent?

• Energy flow

• Competition

• Habitat

• Population size

Which type of consumer eats only plants?

• Carnivore

• Herbivore

• Omnivore

• Decomposer

In which type of relationship do both species benefit?

• Parasitism

• Commensalism

• Mutualism

• Competition

What is an example of a symbiotic relationship where one organism benefits and the other is harmed?

• Mutualism

• Commensalism

• Parasitism

• Neutralism

Which of the following is NOT a type of consumer?

• Herbivore

• Omnivore

• Producer

• Carnivore

Which term describes a relationship where one organism benefits and the other is neither helped nor harmed?

• Mutualism

• Commensalism

• Parasitism

• Predation

What role do decomposers play in an ecosystem?

• They produce energy

• They consume primary producers

• They recycle nutrients back into the soil

• They compete for food

Which of the following best describes a food web?

• A linear sequence of energy transfer

• A complex network of feeding relationships

• A list of plants in an ecosystem

• A diagram showing only producers

What type of consumer is a lion?

• Herbivore

• Primary consumer

• Secondary consumer

• Tertiary consumer