The myelination of axons or the presence of the myelin sheath regulates the conduction velocity of the nerve impulses by acting as an insulator to the nerve fibers. The spaces or gaps between each myelin sheath are called the nodes of Ranvier and the impulse go from one node to another. This phenomenon is called saltatory conduction.
Nice to know: The myelin sheath in the central nervous system is provided by cells called oligodendrocytes. On the other hand, the myelin sheath in the peripheral nervous system is provided by cells called the Schwann cells.
Answer:
A limiting factor is anything that constrains a population's size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource. For example, if there are not enough prey animals in a forest to feed a large population of predators, then food becomes a limiting factor. Likewise, if there is not enough space in a pond for a large number of fish, then space becomes a limiting factor. There can be many different limiting factors at work in a single habitat, and the same limiting factors can affect the populations of both plant and animal species. Ultimately, limiting factors determine a habitat's carrying capacity, which is the maximum size of the population it can support.
Explanation:
https://www.nationalgeographic.org/topics/limiting-factors/?q=&page=1&per_page=25
Answer:
A population of animals is split in half by a river before spectation is complete the two halves are rejoined when a drought casues the river to run dry
Explanation:
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The jet stream flows west to east
<span>Dialysis is the process of artificially removing excess water, solutes and toxins from the blood in those whose native kidneys have lost the ability to perform those functions.
A, C, and D are true.</span>
