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masha68 [24]
3 years ago
5

Which of the following is not a function of astrocytes?

Biology
1 answer:
VLD [36.1K]3 years ago
5 0

The correct answer is: E) provide the defense for the CNS

Astrocytes are star-shaped cells found in central nervous system (brain and spinal cord) .Some of their functions include:

• Support of neurons by supporting endothelilal cell of blood–brain barrier,

• Provide nutrients to neurons

• Maintain ion balance and thus controlchemical environment around neurons

• Repair of injuries in the brain

• the secretion or absorption of neural transmitters…

The cells that provide the defense for the CNS are called microglia. Those cells are also glial cells, derived from macrophages and thus, part of active immune defense.

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B=black and b=brown. A Bb guinea pig crosses with a Bb guinea pig, and four offspring are produced. All of the offspring are bla
Sladkaya [172]

If two Bb guinea pigs cross, there are four possible outcomes:

  • both pass the B: the son is BB
  • one of the pass the B and the other pass the b: the son is Bb
  • both pass the b: the son is bb

Since B (being black) is dominant, the son will be black in both BB and Bb cases. In order for a son to be brown, he must be a pure bb specimen.

So, if all of the offspring are black, it means that all four guinea pigs are either BB or Bb, which in turn means that at least one of the parents passed the B gene.

8 0
3 years ago
What are the main causes of crack growth in rocks over time?
maria [59]
Some of the main causes are plant growth and ice wedging.
5 0
3 years ago
The name cultivar was coined by<br> L. H. Bailey<br> Gregor Mendel<br> Herbert Macintosh
postnew [5]

Answer:

L. H. Bailey

Explanation:

A cultivar is variety of a plant specie that has been developed from a natural species and maintained under cultivation. The are usually plant species that have been selected from a population because of their distint and desirable characteristics which are usually maintained during propagation.

The term was introduced by L.H Bailey

4 0
3 years ago
Gestational diabetes occurs when a pregnant woman has high levels of blood sugar. Cells in the pancreas usually keep blood sugar
Ahat [919]

Answer:

environment controlling gene expression  

Explanation:

Gestational diabetes generally occurs in pregnant women. The sugar level in the bloodstream becomes little high than the normal range during pregnancy. But the glucose level returns to normal after child birth.

The pancreas secrets insulin which helps to lower the blood sugar level in the body. But during pregnancy, the placenta releases some of the hormones which dilutes the effect of insulin. This is known as insulin resistance. So now the pancreas secretes more of insulin to overcome this insulin resistance for the body. Now if a woman during pregnancy does secrete more insulin, the glucose level increases in the body and the woman develops gestational diabetes.

Gestational diabetes greatly depends upon obesity and the ethnicity of the women, but a definite genetic link has not been identified.

This it is a result of the environment control gene expression.

6 0
2 years ago
When considering the phosphorus cycle, plants obtain most of their phosphorus?
love history [14]
This statement should be true, hope this helps!!!!!
5 0
3 years ago
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