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meriva
2 years ago
9

What are the functions of the cell wall Help plz

Biology
1 answer:
tester [92]2 years ago
5 0
A major role of the cell wall is to form a framework for the cell to prevent over expansion. Cellulose fibers, structural proteins, and other polysaccharides help to maintain the shape and form of the cell
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Why are grassland and forest soils good for farming?
Musya8 [376]
<span>I believe the answer is C. Grasslands and forests do not have permafrost--present in tundra and taiga so A can be eliminated. B  is not right because forests and grasslands definitely do not get TOO much rain, assuming they're not talking about tropical rain forests. </span>
6 0
2 years ago
What happpened during the Cambrian Explosion
disa [49]
The Cambrian Explosion is when diverse animals were first recorded as fossils. 
8 0
3 years ago
A liquid with strong forces between the particles has a low viscosity true or false
Igoryamba

Answer:

False

Explanation:

Viscosity is a property of liquid that has resistance between liquid molecules. Those liquids having strong force of attraction between their particles has a viscosity whereas those liquid substances have weak intermolecular force of attraction between the particles has low viscosity. For example, water has low viscosity as compared to honey.

3 0
3 years ago
Describe the general types of diagnostic tests used to diagnose patients infected with HIV.
GenaCL600 [577]

AIDS

This disease leads to death by weakening the immune system of the human body.  Common symptoms are related to the nervous system like dementia, anxiety, depression and insomnia.

TESTS

The tests for AIDS are discussed below.

The most common test for any disease is the blood test.  

When human body is infected with the virus, the body produces anti-bodies to combat this infection. The blood test is positive if these anti-bodies are present in the blood sample of the infection person. However, it takes time for these anti-bodies to appear in the blood stream, hence, blood test should be done at regular intervals.

The tests specifically developed for AIDS are as follow.

ELISA or Enzyme-linked immunosorbent assay

If this test is positive, this is followed by a Western Blot test. The blot test is done in order to confirm the disease.

As said before, anti bodies take time to develop. If the test is done during this phase, it will be negative despite of the presence of virus in the blood stream.

HOME

Only one home test is approved. This is called Home Access Express Test. The kit of this home test is available at pharmacies.

SALIVA

The saliva from the patient’s cheek is obtained on a cotton pad. This pad is put in a vial which is then sent to the lab for testing.  If the result is positive, blood test is done to confirm the disease.

VIRAL LOAD

As the name suggests, this test measures the quantity of virus present in the blood. This test is done to either test the presence of HIV or to track the progress of the treatment of HIV.

WESTERN BLOT

This test is done when the result of ELSA test is positive. This test confirms the disease.

All the above test if turn out negative and the patient still doesn’t recovers, this testing should be done periodically until the disease is confirmed.

6 0
2 years ago
Consider the following prediction. Prediction: If tomato plants are harmed by NoGro herbicide, then an increase in the concentra
Sholpan [36]

The statement that describes this prediction is as follows:

  • The prediction is useful because it explains what observations will be made if a hypothesis is true​.

Thus, the correct option is D.

<h3>What is Herbicide?</h3>

Herbicide may be defined as a chemical agent that is responsible for destroying or inhibiting the growth of a particular plant as compared to the normal one.

The projection is necessary because it supports the product after a one-year duration. So for example, if after one year there is undoubtedly a reduction in the intermediate height of the tomato plants, then we can absolutely say that it is because of the existence of NoGro herbicide which is supplied in water.

Therefore, it is well described above.

To learn more about Herbicides, refer to the link:

brainly.com/question/21807353

#SPJ1

7 0
1 year ago
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