Microorganisms In The Environment

What distinguishes bacteria from animal or plant cells?

• Bacteria are larger than animal or plant cells

• Bacteria are made up of many cells

• Bacterial cells are much smaller than animal or plant cells

• Bacteria have cell walls like plants

Protozoa have the following characteristics, except:

• Has no cell walls

• Live freely or as parasites

• It is a completely autotrophic organism

• Included in Kingdom Protista

What microorganisms are used in the fermentation process to make bread?

• Bacteria

• Fungi (yeast)

• Protozoa

• Algae

Why doesn't algae have roots, stems and leaves?

• Because algae are unicellular or simple multicellular

• Because algae live in dry land

• Because algae does not need nutrients

• Because algae do not carry out photosynthesis

What is the role of rabbits in the food chain above?

• Manufacturer

• First consumer

• Second consumer

• Decompocers

Living creatures that act as secondary consumers are ...

• Plant

• Caterpillar

• Hawk

• Bird

If the grasshopper population decreases drastically, what will happen is ...

• The frog population will increase

• The owl population was not affected

• The snake population will increase

• The frog population will decline

Who are the top consumers in the food web?

• Hawk

• Snake

• Rabbit

• Grass

What happens if snakes are removed from the food chain?

• The rat population will decrease

• The eagle population will decline

• The rice population will increase

• The rat population was not affected

What role do fungi play in the ecosystem?

• Peak consumer

• Second consumer

• Decomposers

• Producers