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AnnZ [28]
2 years ago
8

The concentration of solutes in a red blood cell is about 2%. Sucrose cannot pass through the membrane, but water and urea can.

Osmosis would cause red blood cells to shrink the most when immersed in which of the following solutions? Why?
(a) pure water(b) a hypertonic urea solution(c) a hypotonic sucrose solution(d) a hypertonic sucrose solution
Biology
1 answer:
Liula [17]2 years ago
4 0

Answer:

D: a Hypertonic sucrose solution

Explanation:

Sucrose cannot pass through the membrane and Hypertonic solution's cause cells to shrink.

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The ________ extends through the hindbrain, midbrain, and forebrain.
Lemur [1.5K]

Answer: option C) Pons

Explanation:

Pons, or better still, the pons Varolii is a band of nerve fibers located within the brain stem. While, the brain stem is known to connect the spinal cord(Hind brain) to the fore brain

Thus, Pons extends through the hindbrain, midbrain, and forebrain.

3 0
3 years ago
Which of these is an example of a haploid cell? Neuron/ Sperm/ Red blood cell
Gekata [30.6K]
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4 0
2 years ago
9- The results of this type of DNA analysis are often used to help
juin [17]

Answer:

B) if two species are closely related.

Explanation:

DNA analysis is used to determine the relationship between two species in order to check their relations with each other because DNA molecules has all the information about the organisms. If there is more similarities between two organisms so they are more closely related to each other while on the other hand, if there is no similarities between two species so we can say that there is no relationship exists between two organisms or species. All this discussion  describes the usefulness of DNA analysis.

7 0
3 years ago
Ammonia, the major etiologic factor in the development of encephalopathy, inhibits neurotransmission. Increased levels of ammoni
marysya [2.9K]

Answer:

The digestion of dietary and blood protein.

Explanation:

Encephalopathy is a disease referring to brain damage or malfunction. This means that, a situation whereby the brain is not functioning very well.

This can be caused by drugs, toxins, trauma and infections among others.

In this case, the building up of ammonia in the blood will result to type of encephalopathy known as hepatic encephalopathy. This is when the consciousness level of the brain is being altered.

This happens when the the liver cannot remove toxic chemicals like ammonia from the body.

4 0
3 years ago
This has to do with blind spots: What parts of the eye are involved with this inability to see? How do these eye parts function?
Slav-nsk [51]

Answer:

  • Blindspot
  • It has a vital role. It is the only way out of the optic nerve. By this hole optic nerve exits from the eye and goes towards the brain.
  • It can be proved by a simple experiment. A paper sheet is taken. Then a cross and a circle are drawn side by side on that paper. Then we will focus on the cross. Then by closing one eye and by bringing the paper slowly towards our face, the circle will be disappeared at a certain point.        

Explanation:  

The blind spot is a region on the retina where ganglion cells connect with the optic nerve, and the optic nerve and blood vessels leave the eyeball. There are no receptors in this area so nothing can be translated into vision. That's why the blind spot is unable to see things.

6 0
3 years ago
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