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Verdich [7]
3 years ago
8

Varicose veins seen in the superficial veins of the legs are unsightly and often treated by surgically removing them. however, e

ven without these veins being present, the return of all blood toward the heart from the legs is not diminished primarily because ______.
Biology
1 answer:
7nadin3 [17]3 years ago
7 0
It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer. Varicose veins seen in the superficial veins of the legs are unsightly and often treated by surgically removing them. however, even without these veins being present, the return of all blood toward the heart from the legs is not diminished primarily because <span>blood can still return via the deep veins. Hope this helps.</span>
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In the cranial nerve model, which best describes the location of the optic chasma:________
eimsori [14]

Answer:

  • <u>Cranial Nerves:</u>

The cranial nerves are the set of 12 pairs of nerves which are originated from the brain. As they are responsible for some of the essential functions , such as vision, smell, and balance of the human body structure.

<u>The 12 pairs of the cranial nerves are as as under:</u>

  1. The olfactory nerve
  2. The optic nerve
  3. The oculomotor nerve
  4. The trochlear nerve
  5. The trigeminal nerve
  6. The abducens nerve
  7. The facial nerve
  8. The vestibulocochlear nerve
  9. The glossopharyngeal nerve
  10. The vagus nerve
  11. The spinal accessory
  12. The hypoglossal nerve,
  • It is very hard for the students to remember all the names of the cranial nerves as we can just recall them by memorizing the device-<em>Old Opie Occasionally Tries Trigonometry And Feels Very Gloomy, Vague And Hypoactive.</em>

Explanation:

  • <u>Optic chasma:</u>

The optic chasma originates as one of the cranial nerves, as it serves for the function of vision sense in human body. The nerves are responsible for carrying the set of information and data from the retina of the eye to the brain. As the communication between the two regions or part of the body, as they hold the capacity to carry the charges or information from the retina of the eye towards the brain.

4 0
3 years ago
Why might using retroviral vectors for gene therapy increase the patient's risk of developing cancer? a. Retroviral vectors may
Svetllana [295]

The use of retroviral therapies can increase the patient's risk of developing cancer because they may integrate recombinant DNA into the genome in ways that may misregulate the expression of genes. Therefore the correct option is D.

<h3>What is retroviral therapy? </h3>

Retroviral therapy is an HIV treatment where medicines are taken as prescribed by a healthcare professional. This treatment reduces the amount of HIV in an HIV-infected person.

HIV does not have a cure but antiretroviral therapy can reduce the risk of potential health issues caused by HIV.

This treatment can help to control the virus in an HIV-infected person within 6 months. The treatment for HIV cannot prevent the transmission of other sexually transmitted diseases.

Therefore the correct option is D.

Read more about retroviral therapy, here

brainly.com/question/14512889

#SPJ4

7 0
2 years ago
Which of these are the two major sources of nitrate pollution in rivers?
nikklg [1K]

Answer:

The correct answer is <em>c. animal wastes and fertilizers. </em>

Explanation:

Two major sources of nitrate pollution are farming and breeding activities. There are also certain industrial activities involved in nitrate pollution, but in general, these industries are related to agriculture.

The indiscriminate use of fertilizers for several years in intensive productions produce high nitrate concentration in soil and consequently elevate the risk of nitrate lixiviation.

Breeding animals produce nitrate pollution by their wastes, which accumulate and are not treated. These wastes include flesh, hair, feathers, skin, fat, liquids, excrements, among others. These wastes are an important source of nitrate.

In many cases, animal wastes are used by farmers as organic matter to improve their production. But excessive and incorrect use of it might produce severe damage in water sources.

4 0
3 years ago
All cells are dependent on what fuel for energy
Scorpion4ik [409]
Cells depend on glucose for energy.
7 0
4 years ago
3. Define or<br> describe a cell.
lbvjy [14]

Answer:A cell is the smallest unit of a single or multicellular organism. They provide energy for the body of a multicellular organism, and can be specialized by the body for 1 specific task or many.

Explanation:

Hoped this helped!

5 0
3 years ago
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