Chapter 3 Biology (Miller and Levine)

Front

Nonliving factors in an environment

Back

abiotic factors are the nonliving components of an ecosystem, such as sunlight, water, and minerals.

Front

Living factors in an environment

Back

biotic factors are the living components of an ecosystem, including plants, animals, and microorganisms.

Front

Organisms that can make their own food using sunlight

Back

autotrophs are organisms that produce their own food through photosynthesis, such as plants and algae.

Front

Which of the following organisms does NOT require sunlight to live?

Back

chemosynthetic bacteria are organisms that obtain energy from chemical reactions, not sunlight.

Front

Plants are

Back

primary producers, meaning they produce energy for themselves and other organisms through photosynthesis.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What are heterotrophs?

Back

Heterotrophs are organisms that cannot produce their own food and must consume other organisms for energy.

Front

Define ecosystem.

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic material, recycling nutrients back into the ecosystem.

Front

What is a food chain?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.