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Romashka [77]
3 years ago
8

1. What is the relationship between the virus structure and its function in the virus model?

Biology
1 answer:
mel-nik [20]3 years ago
6 0

Answer:

PLZ MARK ME AS BRAINLIST....

Explanation:

ANSWER OF 1ST QUESTION -

1) it protects the nucleic acid from digestion by enzymes, 2) contains special sites on its surface that allow the virion to attach to a host cell, and 3) provides proteins that enable the virion to penetrate the host cell membrane and, in some cases, to inject the infectious nucleic .

ANSWER OF 2ND QUESTION -

Mutations can produce viruses with a reduced pathogenicity, altered host range, or altered target cell specificity but with intact antigenicity. Such viruses can sometimes be used as vaccine strains.

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Viral envelopes are made of​
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Answer:

Lipids and proteins

Explanation:

It gets lipids from the membrane of the host cell it attaches to.

The proteins on the envelope are from the original virus itself.

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This kingfisher's beak can be measured as about 4.2 cm
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Answer:

Common Kingfishers measure 17 – 19 centimetres in length, weigh between 34 – 46 grams and have a wingspan of 25 centimetres. Their beak is around 4 centimetres long and pointed. Kingfishers have short, orange coloured legs. Kingfishers are very brightly coloured. The colour of their wings is a blue/green colour and their upperparts, rump and tail are a bright blue colour. Their underparts are bright orange and they have a small, white bib underneath their beaks, on their throats.

Explanation:

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Explain how the release of sodium and chlorine would lead to a loss of water in the intestines
frosja888 [35]

Answer:

Please find the explanation below

Explanation:

Sodium (Na) and Chlorine (Cl) are two electrolytes that play important role in the absorption of water and nutrients in the small intestine. However, as mentioned in the question, the release of sodium and chlorine would lead to a loss of water in the intestines. This is because of the OSMOTIC phenomenon.

Osmosis is the movement of water molecules from a region of high concentration of water/low concentration of solute to a region of low concentration of water/high concentration of solute via a semipermeable membrane. In this case, the Na+ and Cl- ions serve as the solutes, which when released out of the intestine causes the solution in the intestines to be HYPOTONIC compared to the intestinal environment. This causes an OSMOTIC GRADIENT.

This osmotic gradient i.e. difference in concentration provokes osmotic flow of water from the intestines, which has a low solute/high water concentration, to the outside of the intestines, which has a high solute/low water concentration. Hence, water is lost from the intestine because the solute concentration becomes low when sodium and chlorine ions are released.

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How does capillary action help sustain life on earth?
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This helps us sustain life by  <span>the tendency of a liquid in a capillary tube or absorbent material to rise or fall as a result of surface tension.</span>
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