Question

Use the drop-down menus to determine whether a bacterial example is beneficial or harmful to humans.


Coriariaceae coriaria is a species of bacteria that helps convert nitrogen into a form usable by plants.

Mycobacterium tuberculosis is a species of bacteria that causes the disease tuberculosis in people.

Lactobacillus acidophilus is a species of bacteria that is found in yogurt and can help people improve their digestion.

Lactobacillus sanfranciscensis is a species of bacteria that makes the sour flavor in sourdough bread. It gets its name from San Francisco, where a great deal of sourdough bread is made.

Answer 1

- Coriariaceae coriaria — Beneficial (helps convert nitrogen for plants)
- Mycobacterium tuberculosis — Harmful (causes tuberculosis in humans)
- Lactobacillus acidophilus — Beneficial (found in yogurt; aids digestion)
- Lactobacillus sanfranciscensis — Beneficial (produces sourdough flavor; used in food fermentation)