The Role of Microorganisms in Aquatic Ecosystems

Multiple Choice

What are microorganisms?

• Large animals that live in in water

• Tiny living things that can only be seen with a microscope

• Only bacteria that cause diseases

• Rocks and minerals in water

Multiple Choice

Which of the following is NOT an example of a microorganism?

• Bacteria

• Algae

• Fish

• Protozoa

Multiple Choice

Which type of microorganism breaks down dead plants and animals?

• Bacteria and fungi

• Algae and protozoa

• Fish and amphibians

• Viruses and plankton

Word Cloud

True or False: All microorganisms in water are harmful.