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3 years ago

Masses of gray matter within the central nervous system are

Biology

2 answers:

Gennadij [26K]3 years ago

7 0

Answer & explanation:

The gray matter found in the structures of the CNS is distributed along with the white matter in the medulla, brainstem, brain and cerebellum.

Inside the CNS, the white matter is coated by the gray matter between structures, especially in the brain and cerebellum. In this interior, the gray matter forms masses that make up the central nuclei (cerebellum) and base nuclei (brain).

Ludmilka [50]3 years ago

3 0

Answer:

The correct answer is: neuronal cell bodies, neuropil, and glial cells.

Explanation:

Nervous tissue can easily be classified in grey and white matter. Both of these matters are located in the Central Nervous System.

These specific names are given by the color these structures have. White matter consists mostly of axons, and is white because the axons are surrounded by myelin, which is a structure made of fat.

Grey matter is composed of the bodies of neuronal cells, neuropil and glial cells. The glial cells found in the grey matter are astrocytes and oligodendrocytes.

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horsena [70]

Answer:

a.Many mitochondrial genes resemble proteobacteria genes, while the genes in the chloroplast resemble genes found in some photosynthetic bacteria.

c.Mitochondria and chloroplasts both have their own circular DNA and 70S ribosomes that are similar to those found in bacteria.

d.Mitochondria and chloroplasts replicate by a process similar to mitosis.

Explanation:

Endosymbiotic theory states that mitochondria and chloroplast which are organelles of eukaryotic cells were once independently living micro-organisms but with due course of time eukaryotic cells engulfed them and they become an integral part of these eukaryotic cells.

The resemblance between mitochondrial genes with those of proteobacteria and chloroplast genes with photosynthetic bacteria strongly support endosymbiotic theory. Apart from this, the presence of their own DNA that too circular just like prokaryotic microbes and 70 S ribosomes also support this theory. Also just like prokaryotic cells, before cell division mitochondria and chloroplasts undergo replication by means of a process known as binary fission.

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3 years ago

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ANEK [815]

Answer:

it is unclean

Explanation:

fish that have non-shedding, non-overlapping, diamond-patterned, or imbedded scales should be considered unclean.

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3 years ago

Read 2 more answers

Why are communities that are more diverse usually more stable?

serg [7]

It is going to depend on what you consider stable. A diverse population would be more resistant to disease because of simple biology. The more sources for possible resistance the better the heterogeneous pool will be at resisting disease. You also have to take in to consideration things like the availability of modern medicine and the ability to be isolated during illness. Personally I think it has to do with the fact that many of the worlds more diverse population centers are also many of the worlds largest population centers which make them less prone to invasion on that basis alone.

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2 years ago

In a plant cell, DNA can be found in?

hoa [83]

Answer:

D. All of the above

Explanation:

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djyliett [7]

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2 years ago