Answer:
to organize the eras and periods of major events of fossils
Answer:
Producers
Explanation:Plzz mark brainliest plz! - Lily ^_^
Answer:
1. E.coli
2. Intestinal tract
Explanation:
E.coli bacteria are useful to humans when they live in the large intestine of humans. The large intestine is an important digestive structure as it is important for the reabsorption of the nutrients.
The E.coli living in the intestine use the available digested nutrients and synthesises the vitamin B and K which are absorbed and utilised by the human body.
Thus, E.coli and Intestinal tract is correct.
I believe it is A. Please forgive me if I am wrong.