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DerKrebs [107]
2 years ago
5

Many viral diseases are combated by prevention through

Biology
1 answer:
stellarik [79]2 years ago
7 0

Answer:

The spread of many viral diseases can be prevented by hygienic factors such as efficient sanitation facilities, effective waste disposal, clean water, and personal cleanliness. Active immunization by vaccines (antigen-containing preparations that elicit the synthesis of antibodies and thus immunity) has been useful in preventing common epidemics caused by acutely infectious viruses.

Explanation:

Mark as brainliest please

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Observe the two plants. Which cellular change affected the structure of second plant?
OLEGan [10]

Answer:

The correct answer is option D which is release of water from the vacuoles.

Explanation:

The difference in second plant from the first one is rigidity. Second one is wilted and not rigid. This is due to the release of water from the vacuoles in the cell of plants.

Vacuoles are present in the center of plant cell. They are usually filled with water and provide structural support to the cell.

In the absence of water filled vacuoles, plants shoots are wilted as in case of second plant.

4 0
3 years ago
How has the artificial manipulation of plasmids been used for technological applications??
sveta [45]
Thank you for posting your question here at brainly. <span>Plasmids can be used to incorporate a desired gene into something else which is lacking the gene. An example would be that you could take a plasmid from a bacteria which is resistant to an antibiotic and put it into a bacteria which is not resistant to the antibiotic. Therefore, the insertion of the plasmid would make the susceptible bacteria resistant.</span>
3 0
3 years ago
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What are the relationships that are present between the frequency, wavelength, and amplitude of a wave?
mr Goodwill [35]

Answer:

Wavelength and frequency are inversely proportional to each other. Such that longer waves have lower frequencies, and shorter waves have higher frequencies. The amplitude or height of a wave is measured from the peak to the trough.

5 0
3 years ago
In the hardy-weinberg formula what does 2pq represent
valina [46]
In the Hardy-Weinberg formula, 2pq represents the frequency of the Aa genotype (heterozygous). 
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Which is an example of the environment affecting gene expression?
ivolga24 [154]

Answer:

b

Explanation:

some genes being turned off in warm temperatures

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