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2 years ago

What is the best description of what viruses are made of?

Biology

2 answers:

Mazyrski [523]2 years ago

6 0

The answer is C.

A virus is made up of or consists of a nucleic acid in varying quantity which may either be RNA or DNA.

The nucleic acid is surrounded by a protein shell called a capsid. The word capsid comes from the Latin word capsa which means box.The capsid and the nucleic acid within it are together referred to as nucleoprotein.The capsid is made up of small sub units called capsomeres.

In many viruses, the nucleoprotein makes up the whole virus. More complex viruses have one or more further enclosing structures also made mostly of protein. These structures are referred to as envelopes and each envelop is specific to a particular virus.

PIT_PIT [208]2 years ago

6 0

c. protein and nucleic acids

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Viruses are ______ that can only survive and reproduce by infecting living cells.

lubasha [3.4K]

Answer:

Viruses are <u>non - living things</u> that can only survive and reproduce by infecting living cells.

<u>Host</u> is an organism that shelters and nourishes others.

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6 0

2 years ago

Pea contains only 0.25% phenylethyl alcohol because high concentrations inhibit both gram-positive and gram-negative organisms.

sdas [7]

If the alcohol concentration in PEA agar was increased, it would inhibit both Gram - and Gram + bacteria by breaking down membrane absorbency barrier, tolerating influx of substances that are generally blocked and leakage of cellular potassium. High alcohol concentrations would lead to disruption or halting of DNA synthesis in both Gram + and Gram - bacteria

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3 years ago

The diagram shows an example of a food web. What are common traits of the prey shown that help them survive? What might happen i

denpristay [2]

Answer:

Adverse effect on the animals.

Explanation:

If the rabbit population suddenly shrank due to disease, it will adversely affected the population of eagle, fox and coyote because these animals depend on them through feeding. Eagle, fox and coyote feed on the rabbit so if the population of rabbit decreases, then there will be scarcity of food for these animals and as a result decrease occur in their populations so we can say that adverse effect occurs on the population of eagle, fox and coyote.

3 0

1 year ago

Non native species that takes over the nature environment of others

OlgaM077 [116]

Answer: exotic

Explanation: exotic can be thought of as “not from here”

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2 years ago

Check all of the statements that are true regarding keratinized stratified squamous epithelium.

strojnjashka [21]

Answer;

-Keratinized stratified squamous epithelium forms the epidermis of the skin.

-In keratinized stratified squamous epithelial tissue, the cells on the apical (outer) surface are dead.

Explanation;

-Stratified squamous epithelium is a type of tissue found covering and lining parts of the body. Stratified squamous epithelium may be keratinized or nonkeratinized. Non-keratinized surfaces must be kept moist by bodily secretions to prevent them from drying out.

-The cells on the surface of stratified squamous keratinized epithelium are very flat. Not only are they flat, but they are no longer alive. They have no nucleus or organelles. They are filled with a protein called keratin, which is what makes our skin waterproof.

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2 years ago