Grade 7 - Science - Week 1

Which term relates to or results from living things, especially in their ecological relations?

• Abiotic

• Decomposer

• Biotic

• Producer

What is a consumer?

• A living organism that does not create its own food

• A nonliving condition or thing

• A plant that produces its own food

• An organism that breaks down organic material

What does bioaccumulation mean?

• A chemical process in which oxygen is used to make energy

• An increase in the concentration of a chemical in a biological organism over time

• A nonliving condition or thing

• A plant that produces its own food

Which term is defined as a community of interacting organisms and their physical environment?

• Ecosystem

• Abiotic

• Biotic

• Decomposer

Which term refers to a chemical process in which oxygen is used to make energy from carbohydrates?

• Bioaccumulation

• Cell Respiration

• Abiotic

• Consumer

What are biotic elements?

• Non-living things/factors

• Living things/factors

• Both living and non-living things

• None of the above

What are abiotic elements?

• Living things/factors

• Non-living things/factors

• Both living and non-living things

• None of the above

An ecosystem is a community of living things interacting with dead things.

• True

• False

Half of the world's species live in tropical rainforests.

• True

• False

Which of the following is an example of a biotic element interacting with an abiotic element?

• A) A rock being eroded by wind

• B) A plant growing in soil

• C) Water freezing into ice

• D) None of the above