B.
Relaxation Phase
Cholinesterase released and acetylcholine breakdown
Sarcolemma & T-tubules repolarized
SR Ca++ pump activated & Ca++ returned to SR terminal cisternae
Actin-myosin crossbridge formation terminated
Return of tropomyosin to actin binding site
Mg++ complex formed with ATP
Passive sliding of filaments
Sarcomeres return to resting state
Answer and Explanation:
Image result for How did the results prove the semiconservative model of DNA
The experiment done by Meselson and Stahl demonstrated that DNA replicated semi-conservatively, meaning that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand. Although Meselson and Stahl did their experiments in the bacterium E.
A. They became sick. Hence, the Koch hypothesis.
No. Below 1000m the sunlight could not reach therefore plant like organism would not be able to grow there. However if the organism does not need sunlight then it might have a small chance of survival. Of course there also is the water pressure that can also pose a problem. So I say No.
A tropism is a turning toward or away from a stimulus in the environment. Growing toward gravity is called geotropism. Plants also exhibit phototropism, or growing toward a light source. This response is controlled by a plant growth hormone called auxin.
