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Elina [12.6K]
3 years ago
8

What mechanism prevents or slows some chemicals from entering the brain, while allowing others to enter?

Biology
1 answer:
MissTica3 years ago
6 0

Answer:

The blood brain barrier blocks chemicals from entering brain tissue.

Explanation:

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A diploid cell with 2n = 14 chromosomes undergoes the process meiosis. How many cells would be created after meiosis occurs and
barxatty [35]

4 cells would be created after meiosis and each cell would have 7 chromosomes.

<h3>Meiosis</h3>

Meiosis is the division of non-vegetative cells. It is a reductional division during which the ploidy level of the parent cell is halved in the daughter cells.

Thus, a cell with 2n = 14 that undergoes meiosis will produce daughter cells with n = 7.

Usually, 4 daughter cells are produced at the end of meiosis.

More on meiosis can be found here: brainly.com/question/7002092?referrer=searchResults

4 0
3 years ago
Identify the organelle with the following structure or function with the list below:
antoniya [11.8K]
The answer is Lysosomes.
4 0
3 years ago
How has waste leaving a cell affected its surface area to volume ratio?
lapo4ka [179]

The important point is that the surface area to the volume ratio gets smaller as the cell gets larger and as volume increases, surface area to volume ratio decreases. The larger a cell, the less easily it can get rid of waste and it also has more trouble getting water, nutrients and gases in. That is why we do not see giant cells. Instead we see multiple cells in larger organisms.  

One way to increase surface area is to flatten the cell. That is why red blood cells are flat discs, instead of spheres. Another way is elongation. That is why many bacteria are rod shaped, and why neurons are elongated. In fact, the human body relies on the same principle to adapt to climate. Long tall and lean folks with long arms and legs live in East Africa, because such shapes increase surface area to get rid of excess body heat to avoid heat strokes. Europeans and Asians adapted to cold climates, in contrast, have shorter arms and legs and rounder torsos to minimize surface area. to conserve body heat.

6 0
3 years ago
Describe a situation in which you would choose to measure a liquid using the beaker instead of the graduated cylinder.
Dafna1 [17]
A beaker measure large volumes of liquids and shows the approximate measurement and is not a suggested tool for measuring precise measurements of liquid. A graduated cylinder measures the precise reading of the liquid and is the suggested tool for a exact measurement.

Hope this helps :)
7 0
4 years ago
Which substance is a product of glycolysis?
love history [14]

Answer:

I believe it's B.

Explanation:

Hope my answer has helped you!

6 0
3 years ago
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