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sveticcg [70]
3 years ago
13

NEED HELP ONLY WOTH 9, A and B

Biology
1 answer:
soldi70 [24.7K]3 years ago
6 0

Answer:

a is physical

b is software

Explanation:

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Severe acute respiratory syndrome (SARS) is an illness caused by a coronavirus. Symptoms, including a high fever, headaches, and
monitta

Answer:

lytic, because of the quick onset of symptoms after infection

Explanation:

As seen in the question above, the SARS virus tends to develop symptoms very quickly when it is infecting a person. This speed in the development of symptoms is a characteristic of the lytic cycle, in relation to the reproductive cycle of viruses. This is because in the lytic cycle, a virus can infect many cells at once, which accelerates the development of the disease. This cycle allows the virus to use all of the cell's biological machinery to reproduce more copies of the virus. When these copies are ready, the virus causes the destruction of the host cell and the release of new viruses to other cells, where the whole process will be repeated. This is all done very quickly.

The lysogenic cycle does not cause the rapid infection of thousands of cells, since it is necessary that there is an adaptation between the DNA of the cell and the DNA of the virus. This slows down the infection process and, therefore, symptoms appear more slowly.

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2 years ago
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A weather front occurs when two air masses of differing temperatures meet. When a cold air mass meets a warm air mass, for examp
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The warm air will rise because cold air is heavier than warm air. 
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2 years ago
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The shells of single-celled plankton that sank to the bottom of the ocean has two varieties of which type of atoms?
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Answer: Oxygen Isotopes!

Explanation: I just took the quiz and I got it correct!

8 0
2 years ago
Number the following steps for the reproductive system of a self pollinating flowering plant in order from 1 to 5. Use the parts
Leviafan [203]

Answer:

3 Pollen tube forms and grows through the style

5 Sperm fertilizes the egg

1 Pollen is released from the anther

4 The pollen tube reaches the ovule within the ovary

2 Pollen sticks to the stigma

Explanation:

The process of double fertilization entails the fertilization of the egg by one sperm and that of two polar nuclei to produce the triploid endosperm tissue that nourishes embryo.

* The image describes the process in detail.

5 0
3 years ago
What does not deliver deoxygenated blood to the heart?
FrozenT [24]

Answer:

Pulmonary veins

Explanation:

In the circulatory system, the heart is responsible for for pumping oxygenated blood throughout the body and deoxygenated blood to the heart.

Normally all veins carry deoxygenated blood. However the pulmonary vein is the only vein that carries oxygenated blood.

They carry oxygenated blood from the lungs to the heart.

However the Superior and inferior vena cava are responsible for delivering deoxygenated blood to the heart.

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