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Photosynthesis

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Questions and Answers

What is the primary purpose of photosynthesis?

To convert light energy into chemical energy (correct)

To fuel the organism's activities

To produce oxygen as a byproduct

To synthesize carbohydrate molecules

What is the byproduct of oxygenic photosynthesis?

Water

Hydrogen sulfide

Carbon dioxide

Oxygen (correct)

Which organisms are called photoautotrophs?

Fungi, bacteria, and protozoa

Viruses, archaea, and helminths

Plants, algae, and cyanobacteria (correct)

Animals, birds, and insects

What is responsible for producing and maintaining the oxygen content of the Earth's atmosphere?

Photosynthesis (C) Signup and view all the answers

What do some bacteria use as a reductant in anoxygenic photosynthesis?

Hydrogen sulfide (D) Signup and view all the answers

What is the primary role of decomposers?

Break down dead or decaying organisms (B) Signup and view all the answers

How do detritivores differ from decomposers?

They ingest and digest dead matter internally (D) Signup and view all the answers

Which kingdom primarily carries out the process of decomposition?

Fungi (D) Signup and view all the answers

What is the primary source of energy for decomposers?

Organic substrates (C) Signup and view all the answers

Why are invertebrates like earthworms considered detritivores and not decomposers?

They are unable to absorb nutrients without ingesting them (C) Signup and view all the answers