Negative impact on the environment is unnatural, fake
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.
<span>any one of a series of three or more alternative or allelic forms of a gene, only two of which can exist in any normal, diploid individual. Origin of multiple allele Expand.</span>