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schepotkina [342]
3 years ago
15

Which of the following is essential (needed) for natural selection to occur?

Biology
1 answer:
Stella [2.4K]3 years ago
6 0

Answer:

Genetic variation in species

Explanation:

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Which of these is NOT a component of the lac operon?
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There is not any options but the parts of Lac Operon is:

Promoter 
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Hope this helps!


3 0
3 years ago
Which are the very small particles that make up matter? atoms molecules mass weight
andre [41]

Answer:

The awnser is atoms

Explanation:

Atoms are the building blocks of everything.

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Some snakes have special sensory organs that detect the infrared region of the electromagnetic spectrum. Compared with human vis
vitfil [10]

Answer:

The correct answer is - a lower frequency and a longer wavelength.

Explanation:

According to the question and generally, some snakes have special organs that can sense or detect the Infrared region of the electromagnetic spectrum. However, human eys can not see or detect the infrared region.

Infrared waves have a longer wavelength and lower frequency in comparison of visible light, visible light can be seen by human eyes.

Thus, the correct answer is - a lower frequency and a longer wavelength.

3 0
3 years ago
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What Is Not Found In Viruses
meriva
All viruses have a <span>capsid, that contains there DNA or RNA, never both. </span>
7 0
3 years ago
Fever results from the stimulations of the hypothalamic thermoregulatory center by: A prostaglandins B granuloma C opsonin D All
FrozenT [24]

Answer:

A prostaglandins

Explanation:

Fever is the abnormal body temperature that is caused by pyrogens.Pyrogens  are the chemicals produced by pathogen. Fever is protective mechanism of body to fight against pathogens. It is actually the immune response that spread to whole body with elevated temperataure. The elevated temperature helps to deal with pathogen more efficiently.

The interleukins released be immune cells in response pyrogen ultimately lead to release of prostaglandin E2. Prostaglandin E2 reset the hypothalamus thermoregulation. The hypothalamus feels the body temperature is cool although how high is the body temperature.

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3 years ago
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