Ecology Quiz

What is ecology?

• Study of the universe

• Study of rocks and minerals

• Scientific study of interactions between organisms and their environments

• Study of plants only

Which of the following is a biotic factor?

• Temperature

• Soil

• Moisture

• Plants

What is the lowest level of ecological organization?

• Community

• Population

• Organism

• Biosphere

What is the role of producers in an ecosystem?

• Consume dead organisms

• Break down organic matter

• Trap energy from the sun

• Hunt prey

Which of these is an abiotic factor?

• Light

• Herbivores

• Decomposers

• Omnivores

What do decomposers do in an ecosystem?

• Eat plants

• Break down dead organisms

• Hunt prey

• Compete for food

What is a habitat?

• The role of an organism in a community

• The tolerance of an organism

• The place where an organism lives

• A feeding relationship

Which of the following describes mutualism?

• Both species benefit

• One species benefits, the other is harmed

• One species benefits, the other is unaffected

• Both species are harmed

What is the main difference between a food chain and a food web?

• Food chains show all energy paths; food webs show one path

• Food chains show one path; food webs show all energy paths

• Food chains only involve producers

• Food webs only involve consumers

What is biological magnification?

• Increase in energy transfer as it moves up a food chain

• Decrease in toxins as they move up a food chain

• Increase in toxin concentration as they move up a food chain

• Equal energy transfer at all levels