Bacteria And Archaea worksheets
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Microorganisms are so small they can only be seen ________________.
From the sky
In a science lab
through a microscope
in the dirt
Which microorganisms are harmful? CHECK ALL THAT APPLY!
salmonella
e coli
algae
yeast
We eat fungi?
True
False
Which of the following fungi are HELPFUL? Check ALL that apply.
e coli
yeast
salmonella
penicillin
Harmful mold and other fungi can...Check ALL that apply.
Rot wood
cause diseases
make bread rise
all of the above
We can live WITHOUT microorganisms.
True
False
Sometimes
During the spring and fall.
Algae is the largest producer of ___________________ on Earth.
pond scum
bacteria
oxygen
carbon dioxide
These organisms only have one cell.
single-cell organisms
multi-cell organisms
plants
humans
You can eat WITHOUT microorganisms.
Yes
No
Sometimes
Probably
Which microorganisms help your body digest food?
bacteria
algae
fungus
virus
Organisms WITHOUT a nucleus?
Bacteria
Fungus
Amoebas
Virus
Bacteria can be both helpful and harmful.
True
False
How do single-cell organisms move? Check all that apply
flagella
cilia
change shape
all the above
Multi-celled organisms are made up of ____________________ cells.
one
two
multiple
ten
Which microorganism is the SMALLEST?
bacteria
algae
fungus
virus
Which type of microorganism is the LARGEST?
Bacteria
Algae
Fungus
Virus
Harmful bacteria can be found in raw meats, raw eggs, and other foods.
True
False
Which microorganism can cause diseases and infections in people?
Bacteria
All of the above
Fungus
Virus
Bacteria and fungi are __________________________.
Producers
Consumers
Decomposers
Mushrooms
Protozoa serve valuable purposes. Which answers tell of this purpose. Check ALL that apply.
Remove harmful waste from sewage at water treatment plants.
Feed animals in the water.
Help bacteria know which direction to move.
Allow all microorganisms to reproduce.
BONUS QUESTION (+2 points):
Which microorganism is one of the oldest things on Earth?
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