Microorganisms

True or false: Prokaryotes do not have a nucleus

• true

• false

What does this image represent?

• eukaryotic- no nucleus present

• eukaryotic- nucleus present

• prokaryotic- nucleus present

• prokaryotic- no nucleus present

What image does this represent?

• influenza

• e. coli

• bacteriophage

• tuberculosis

What is influenza (flu)?

• bacteria

• virus

Viruses only reproduce 

inside a living cell called the

• skin

• nose

• environment

• host

Bacteria are microscopic and

• multicellular

• unicellular

• colonies

• larger than animal cells

Bacteria are decomposers that cause decay.

Decomposers are organisms that...

• break down alive organisms and return them to the soil

• break down dead organisms and return them to the soil

• break down dead organisms and return them to the the sun

• none of the above

A protein coat is called a

• protein

• virus

• DNA

• capsid

Scientists classify viruses as nonliving.

• True
• False

Which of the following is true for both bacteria and viruses?

• both contain genetic material

• can be killed using antibiotics

• have a cell membrane

• have a protein coat