Answer: C
Explanation:
For example, in trp-operon, an abundance of tryptophan. coli inhibits the expression trp-operon genes.
Trp operon is a negative repressible feedback mechanism
trpR gene is expressed continually at a low level
Answer:
A. Submandibular
B. Parotid
Explanation:
The amylase is an enzyme that turns starch into sugars and is presented in the saliva of humans and other mammals. It begins the digestive process. Besides the salivary glands, the pancreas also produces it to help turn starch into sugar and convert that, with other enzymes, in glucose to supply the body with energy.
I hope this answer helps you.
One is that it allows for variation which allows better chance of survival and evolution.
Answer:
science that studies living things
Explanation:
it includes plants and animals so basically anything that has life
