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soldi70 [24.7K]
1 year ago
15

In your own words, explain why a virus such as the rhinovirus, which relies on close contact to spread, might evolve to favor le

ss virulent forms
Biology
2 answers:
Zielflug [23.3K]1 year ago
7 0

Rhinoviruses are transmitted through the air or via contact. We might expect this sort of transmission to require a fairly healthy host (one who gets out and comes into contact with others) and, hence, to select against virulent strains. If we take precautions and try to stay away from people or avoid any contact with people, more hand-washing stations, increased attention to sanitization, and isolation of patients will help to reduce the transmission of the disease and, in the process, may favor the evolution of less virulent strains of the virus.

Kamila [148]1 year ago
4 0

Virulence and rate of transmission

Explanation:

The rate of transmission is more among less virulent viruses. Natural selection adaption processes balances virulence factor and spread of transmission.

A highly virulent virus may  be highly pathogenic and effect the host seriously rendering him/her immobile and under bed rest. hence the host will not move to many places which might prevent the spread of disease through contacting other persons.

Less virulent viruses on the other hand will have less pathogenic and will not render the patient immobile. So the host will be free to move around everywhere and even if asymptomatic might be a potential carrier of the virus. Hence the rate of transmission will be more in this case.

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The mechanism that breaks the linkage between linked genes is
gregori [183]

Answer:

Crossing over

Explanation:

Crossing over is the process during which two chromatids of two homologous chromosomes exchange part of their genetic segments. It occurs during the pachytene stage of prophase I of meiosis I.

Linked genes are mostly inherited together and do not exhibit independent assortment. However, when linked genes are present far apart from each other on the same chromosome, crossing over can occur between them to produce recombinant chromatids. Therefore, crossing over can break the linkage and produce recombinant progeny as it occurs during the independent assortment of unlinked genes.

8 0
1 year ago
The average adult (like Hank) is _________% water, ________% protein, _______% fat, _______% minerals, and _______% carbohydrate
Oliga [24]

Answer: 64% water, 14% protein, 16% fat, 4% minerals 1% carbohydrates

Explanation:

It’s what he says in the video

3 0
1 year ago
In your own words, explain why a virus such as the rhinovirus, which relies on close contact to spread, might evolve to favor le
Zielflug [23.3K]

Rhinoviruses are transmitted through the air or via contact. We might expect this sort of transmission to require a fairly healthy host (one who gets out and comes into contact with others) and, hence, to select against virulent strains. If we take precautions and try to stay away from people or avoid any contact with people, more hand-washing stations, increased attention to sanitization, and isolation of patients will help to reduce the transmission of the disease and, in the process, may favor the evolution of less virulent strains of the virus.

7 0
1 year ago
Read 2 more answers
If one million kilocalories of energy are stored in producers in an ecosystem, how many kilocalories can be transferred to terti
Mashcka [7]
The answer is 1000 kilocarolies.  It is important to keep in mind that Energy is passed up the food chain from one trophic level to the next but a lot of it is lost along the way. Energy is passed up the food chain from one trophic level to the next. However, only about 10% of the total energy stored in organisms at one trophic level is actually transferred to organisms at the next trophic level. Therefore; if the producers have 1 million kilocarolies, then  the energy transferred to the primary consumer will be 100,000 kilocalories (10% of a million), and the energy transferred to the secondary consumer will be 10,000 kilocalories (10% of 100,000) and the energy to the tertiary consumer will be 1000 kilocarolies (10% of 10,000). 
4 0
1 year ago
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Carbohydrates are the primary source of energy for the human body. If your body lacks enzymes that break down carbohydrates, it
SVEN [57.7K]

Ambitious

If your body lacks enzymes that break down

carbohydrates, it would be unable to get sugar molecules for energy production.

If you lacked the enzyme to digest proteins, you may not absorb enough amino

acids.

The digestive system in our body changes

carbohydrates into glucose; also known as blood sugar to be use as an important

source of energy. Meanwhile, amino acids are organic compounds that combine to

form proteins, which are the building blocks of life.

7 0
2 years ago
Read 2 more answers
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