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Answer:
In the central nervous system, about 90 percent of the cells are glia. Originally, the glia was considered to be passive cells, that is, which only functions to support the nerve cells physically, thus, the term glia is used, which means glue.
However, the glia plays an essential function in various homeostatic procedures and also at the time of development. The four prime kinds of glia prevail, that is, oligodendrocytes, astrocytes, microglia, and ependymal cells. The glial cells are also known as the supporting cells of the nervous system.
The prime functions of glial cells are to provide oxygen and nutrients to the neurons, to envelope neurons and hold them in position, to eradicate and remove the carcasses of the dead neurons, and to insulate one neuron from another.
Answer:
When magma reaches the surface, its dissolved gas content increases is true
<u>Explanation</u>:
The volcanic eruptions happen because of magma that is expelled on the earth’s surface. At the earth’s depth, all magma have gas dissolved in liquid. When the pressure has decreased the magma rises towards the earth’s surface creating a separate vapour phase.
As pressure reduces the volume of gas will expands and giving magma its 'explosive character'. Thus, as magma reaches the surface the dissolved gas content decreases and magma comes out of earth’s surface.
Answer:
Explanation:
Repeated tests help determine whether the hypothesis is always true in different circumstances. Repeatedly testing a hypothesis qualifies it to be accepted as a theory.
Answer:
Balanced chemical equations only show formulae, not names. A balancing number, written in normal script, multiplies all the atoms in the substance next to it.
