Answer: Option B) Amplifies specific DNA sequences.
Explanation:
Polymerase chain reaction (PCR) refers to the selective and repetitive duplication of a specific DNA sequence. It involves the following: heat, an enzyme called thermos aquaticus and annealing.
The answer is; C
This is due to natural selection that is the basis of evolution. The light-colored moths became conspicuous to its predators in the dark environment. The black moths on the other hand camouflaged and were preyed on less. This allowed black moths to have an increased chance, compared to light-colored moths, of reaching reproductive age and passing their genes to the next generation.
The coracobrachialis
is a elongated, skinny muscle that acts completely on the shoulder joint. Its
main functions are to draw the arm forward and to pull the arm toward the
midline of the body. The muscle originates from the coracoid process, a small
part of the scapula. It inserts midway along the inside of the humerus, a long
bone in the upper arm.
The answer is b it can also be found in russia
Low food supply and lack of space. Limiting factors can lower birth rates, increase death rates, or lead to emigration.