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Zepler [3.9K]
1 year ago
5

Astrocytes and tight junctions create a barrier to viruses and bacteria known as

Biology
1 answer:
Soloha48 [4]1 year ago
4 0
<span>Answer:The blood-brain barrier (BHE)

 BHE is a barrier that's highly permeability selective and protects the central nervous system  from potential dangers like viruses, bacteria and parasytes that may be circulating int he blood. <span>It is composed of endothelial cells, astrocytes, pericytes.</span></span>
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During periods of intense exercise, cells do not receive enough oxygen to perform the normal process of aerobic cellular respira
Wewaii [24]

Answer: for me the best option is D.

Explanation: lets explain this.

Cellular respiration begins with a process that divides the glucose within the cells making it readily available as a source of energy. This process can occur without oxygen (anaerobic respiration) or in the presence of oxygen (aerobic respiration). Anaerobic respiration generates more excess waste (lactate) than aerobic . Besides, high levels of lactate build within the muscle cells. Excess lactate slows the cellular respiratory process and is experienced as a burning sensation in the muscles if exercise continues.

5 0
2 years ago
The map shows the distribution of wild boars in the United States (shaded area).
fgiga [73]

Answer:

Regarding wild boar, the fact that is best supported by the evidence provided is wild boars have established successfully mostly in areas with warm climates.

Explanation:

The wild boar (Sus scrofa) is a mammal from Africa, whose capacity to adapt to the environment is high. However, it is usually found in warm climates where it has a good supply of water and food.

According to the description of its distribution on the map, the states where it is found —predominantly Texas, California and Florida— verify the fact that they can be found mostly in warm climates, where they have found an ideal environment for their development..

About the other options:

  • <u><em>Wild boars were brought to the United States by humans</em></u><em>.  This is true, but it is not a fact that can be deduced from the information on the map.</em>
  • <u><em>Wild boars have quickly spread through the United States</em></u><em>.  The map does not show this information.</em>
  • <u><em>Wild boars have a high reproductive rate and no natural predators</em></u><em>. The map does not show this information.</em>
4 0
2 years ago
Read 2 more answers
Cilia and flagella bend because of _____. cilia and flagella bend because of _____. the quick inward movements of water by osmos
Ronch [10]

Answer;

-A motor protein called dynein

Cilia and flagella bend because of a motor protein called dynein.

Explanation;

-Both prokaryotic and eukaryotic cells contain structures known as cilia and flagella. These extensions from the cell surface aid in cell movement. They also help to move substances around cells and direct the flow of substances along tracts.

-Cilia and flagella are formed from specialized groupings of microtubules called basal bodies. If the protrusions are short and numerous they are termed cilia. If they are longer and less numerous they are termed flagella.

8 0
2 years ago
In a population of tree frogs, the allele that causes yellow eyes (Y) is dominant over the allele that causes orange eyes (y). I
Alex787 [66]

Allele that causes yellow eyes (Y) is dominant over the allele that causes orange eyes (y)

Y = 85% = 0.85 and

y = 100% - 85% = 15% = 0.15

f(y) = square root of y = √y = √0.15 = 0.387

frequency of the allele that causes orange eyes = 0.387

Once we know the value of y, Y + y = 1

Putting the value of y, we get

Y = 1 – 0.387

<span>Frequency of the dominant allele that causes yellow eyes = 0.61</span>

4 0
2 years ago
What is the importance to goblet cells and other glandular epithelia?
yarga [219]

Answer:

The importance to goblet cells and other glandular epithelia are to secrete mucus in order to protect the mucous membranes where they are found.

6 0
2 years ago
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