Answer:
1. symbiont
Explanation:
Symbionts are organisms interacting in a biological relationship that can be of the type mutualistic, commensalistic, or parasitic
In this case, there is a relationship of commensalism between two organisms: the human and the bacterium.
Commensalism is a relationship between two symbionts where one benefits and the other is not harmed or helped. Commensalism it is derived from the word commensal (old french), used for human social interaction. Sometimes the word commensal is used in biology, however, the term symbiont is used more frequently to refer biological relationships.
Everything will die and everything will be endangered and polluted everywhere.
Answer:
The acidic environment in the stomach stops the action of the amylase enzyme.
The stomach will secrete digestive juice that contain hydrochloric acid and digestive enzyme such as pepsin to digest protein.
The HCL create an acidic environment that will deform the ionic and hydrogen bond of the amylase which cause the enzyme to be denatured.