The gaps (approximately 1 micrometer wide) formed between myelin sheath cells long the axons are called Nodes of Ranvier. Since fat serves as a good insulator, the myelin sheaths speed the rate of transmission of an electrical impulse along the axon.
Answer:
<u>Macrophages.</u> Using the receptors on their surface and through the facilitation by immunoglobulins that attach to the foreign matter, macrophages 'hold' the foreign bodies in the body and 'ingest' them through phagocytosis. Lysozymes in the cells then in 'digest' the foreign matter.
Explanation:
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Answer:
Marker proteins are proteins that are incorporated in the cell membrane of a cell and based on these marker proteins a cell is identified. These proteins are very important while considering an organ transplant. If the marker proteins of the donor organ are not similar to the marker proteins of the original organ of the patient, then the immune cells will recognize the organ as foreign and the transplant will be rejected.
“A carnivore eats both a
rabbit and a mouse in a food web” accurately describes a difference
between a food chain and a food web.
<span>A food chain is a series of events in which one
organism eats another and obtains energy. An example could be a forest
food-chain. The bear is the top of the food chain. The bear eats a coyote. The
coyote ate the rabbit. The rabbit ate the grass. Since the grass can't
technically eat anything, it's the bottom of the food chain and the food chain
ends. </span>
<span>A food web is a diagram showing the various
different plants and animals in an ecosystem in relation to each other. It
encompasses many consumers of each different level, acknowledging that one
predator may eat several different kinds of prey, and that one kind of prey may
be eaten by several kinds of predators. There are many food chains within a
food web, and one creature is not necessarily at the top of the hierarchy. </span>
The correct answer between all
the choices given is the second choice or letter B. I am hoping that this
answer has satisfied your query and it will be able to help you in your
endeavor, and if you would like, feel free to ask another question.
Carry nutrients from the soil to the plant
