Answer:
<u><em>C.)</em></u> <em>Crest to trough</em>
They are among the first
colonizers of an environment. This way they break down rocks and make nutrients available for other plants. They help in retention
of water in a habitat and also shelter many microorganisms.
They also decompose organic matter hence play an
important role in the cycling of nutrient in the environment.
<span>THC is stored in fat. That being said, even if you are a skinny person there are other factors that could affect how the test would turn out. It depends on how much water you drink, what kind of test you take for the weed and how much weed you smoke. There is no set answer. It could be a week or 10 days if you aren't a steady user of pot.</span>
Answer:
provide a means of rapidly transmitting the action potential from the surface into the central portions of the muscle fiber
Explanation:
T-tubules or Transverse tubules are the tube-like structures present in the muscle fibers.
The T tubules are formed by the modification in the plasma membrane of the cell and therefore arise from the surface of the muscle cell. The T tubules then pass through the muscle and enter the inner core of the muscle that is near to the sarcoplasmic reticulum.
The main function of the T tubules is to carry forward the action potential from the synaptic junction to the muscle where it triggers the release of the calcium from the muscle.
Thus, the selected option is correct.
