The answer is air pressure because without that the bird would not be able to go up, like a balloon has to have a pump , think of the wings flapping as the pump and the bird itself as a balloon, hope this helped
Answer:
Reverse mutations in the colonies enabled to recover the ability to synthesize histidine. The 2-aminoanthracene is a chemical agent that induce mutations and therefore it is potentially a carcinogen.
Explanation:
A reverse (suppressing) mutation is a type of mutation capable of restoring the activity of previously mutated genes. On the other hand, 2-aminoanthracene is an aromatic amine carcinogen capable of inducing hepatic and skin tumors. In this case, 2-aminoanthracene has been used to induce reverse mutations at <em>loci</em> responsible for the synthesis of histidine.
Answer:
C
Explanation:
I'm an astronomy nerd so i understand this stuff
Answer:
G0 phase
Explanation:
IF the cell doesn't receive a signal to divide, then it will go into a stage called the G0 phase. Most cells are in this stage until they receive a signal to divide, and then continue the cell cycle.