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Alik [6]
3 years ago
8

HIV is classified as a retrovirus because _____.

Biology
2 answers:
Mumz [18]3 years ago
6 0

Answer:

The answer is C; it makes a DNA copy of its RNA once inside the host cell

Explanation:

HIV is called a retrovirus because common to all retroviruses, they store their genetic information using RNA instead of DNA, and they need to ‘make’ or convert their RNA to DNA when they enter a human cell in order to make new copies of themselves.

alexira [117]3 years ago
3 0

Answer: C

Explanation:

HIV is classified as a retrovirus because its genetic material is composed of single-stranded RNA nucleotide. And also Retroviruses have the enzyme reverse transcriptase, which is capable of making a DNA copy of its RNA once inside the infected host cell

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a

Explanation:

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A basketball is (science)
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A sphere full of air

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because you pump it up and it is very fun to use

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When a baby is born, the zygote has become about _____ billion cells.
valentinak56 [21]

Answer:

<em>When a baby is born, the zygote has become about </em><em><u>26 </u></em><em>billion cells</em>

Explanation:

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<em>When a baby is born, the zygote has become about </em><em><u>26 </u></em><em>billion cells</em>

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7 0
3 years ago
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Why is salivary amylase active for only an hour or so, whereas lingual lipase isn't active until reaching the stomach
leva [86]

Salivary amylase will be active for only an hour or so because the optimum pH for activity of amylase is about 6.7–7.0 which is available in the mouth but the pH of the stomach is acidic around 1-2 due to which the amylase enzyme becomes inactive in short-time.

The lingual lipase enzyme is present in the saliva but isn't active until reaching the stomach because this enzyme is acid stable and works efficiently in the stomach, not in the mouth.

Amylase enzyme is secreted in the mouth and is responsible for the breakdown of starch in food into sugars and it starts acting as soon as we put food in the mouth whereas Lingual lipase enzyme is secreted along with saliva but it is not active in the mouth rather its activity starts in the stomach which is responsible for the degradation of triacylglycerol molecules.

Learn more about enzymes here

brainly.com/question/17320375

#SPJ4

3 0
2 years ago
Which branch of earth science most likely involves the study of climate change and its effect on people?
Mashcka [7]

Answer:

C. meteorology

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meteorology is the scientific study of the atmosphere that focuses on weather processes forecasting, and climate.

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3 years ago
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