Question

Which of the following is a useful bacterium?
(a) Lactobacillus (b)Streptococcus
(c) Salmonella
(d) None of these​

Answer 1

Answer:

Lactobacillus

Explanation:

Your gut is lined with trillions of bacteria that play an important role in your health. Generally, lactobacilli are very good for gut health. They produce lactic acid, which may prevent harmful bacteria from colonizing the intestines.

Hope it helps u! ^_^

Answer 2

Answer:

a. Lactobacillus

this is the answer