Which statement best describes bacteria?

Responses

Bacteria are single celled prokaryotic organisms that can be helpful or harmful.
Bacteria are single celled prokaryotic organisms that can be helpful or harmful.

Bacteria are multicellular eukaryotic organisms, which make you sick.
Bacteria are multicellular eukaryotic organisms, which make you sick.

Bacteria were discovered in 1945 and were widely known to cause illness.
Bacteria were discovered in 1945 and were widely known to cause illness.

In the 1950s when penicillin was discovered, it was widely used to kill bacterial infections.
In the 1950s when penicillin was discovered, it was widely used to kill bacterial infections.

1 answer

The statement that best describes bacteria is:

Bacteria are single celled prokaryotic organisms that can be helpful or harmful.

This statement accurately captures the nature of bacteria, highlighting their single-celled structure, prokaryotic classification, and the dual role they can play in ecosystems and human health. The other statements contain inaccuracies about bacteria being multicellular eukaryotes, the timeline of their discovery, and the introduction of penicillin.