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Llana [10]
3 years ago
8

The Evolutionary Arms race:

Biology
1 answer:
amid [387]3 years ago
3 0

Answer:

<u><em>Microbes,Tuberculosis,Cholera,Feline Immunodeficiency Virus, Symbiosis and Leaf-Cutter Ants</em></u>

Explanation: Hope this helps bro

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Explain how physical and chemical changes affect the mass of a material
jeka57 [31]

Answer:

Explanation:

During a physical change, the arrangement of particles may change but the mass, number of atoms and number of molecules will stay the same. ... During a chemical change, the mass and number of atoms is conserved, but the number of molecules is not always the same. Chemical reactions involve large changes in energy.

6 0
3 years ago
Davy made a model of the water cycle by adding some water inside a plastic bag, sealing the bag, and placing it in a sunny area.
Ad libitum [116K]

<em>Davy made a model of the water cycle by adding some water inside a plastic bag, sealing the bag, and placing it in a sunny area. He noticed that the level of the water went down, and then some droplets appeared on the sides of the bag. which part of the water cycle caused water droplets to form on the side of the plastic bag?  </em>

<em>(a) condensation (b) evaporation (c) precipitation runoff</em>

The part of the water cycle that caused water droplets to form on the side of the plastic bag would be condensation.

<h3>What is condensation?</h3>

It is a process whereby water vapor in the atmosphere condenses or turns back into liquid.

Condensation is as opposed to evaporation. The latter is a process whereby liquid water turns into vapor water. In other words, evaporation and condensation are words and opposites.

Both processes play a major role in the water cycle of the ecosystem.

More on condensation can be found here: brainly.com/question/15563071

#SPJ2

4 0
2 years ago
Which statements accurately describe fermentation? Select two options.
Maru [420]

Answer:

fermentation is an anaerobic process

Explanation:

trust me

4 0
3 years ago
Read 2 more answers
Which of these is a chemical sedimentary rock that is similar to limestone and contains magnesium?
Alisiya [41]
Answer is c- dolostone
4 0
3 years ago
Read 2 more answers
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
3 years ago
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