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Romashka [77]
3 years ago
14

What is a virus and what cause a viruses​

Biology
2 answers:
rosijanka [135]3 years ago
7 0
Meaning:A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

Causes: Viral infections occur when a virus enters the body and invades the inside of the body's cells in order to reproduce. If the body's immune system is unable to fight off the virus, it multiplies and spreads to other cells, repeating the process and leading to a widespread infection.
aleksley [76]3 years ago
7 0
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea
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Nondisjunction occurs when chromosomes do not properly separate during cell division, which can lead to?.(please no links just w
Alex_Xolod [135]

Answer:

Option C, Aneuploidy

Explanation:

Aneuploidy is defined as the condition when offspring/daughter cell has abnormal number of chromosomes.  

In the process of nondisjunction, the pair of homologous chromosomes do not separate and hence the sister chromatids fails to separate.

Hence, option C is correct

6 0
3 years ago
Which statement best describes a food chain?
Deffense [45]
I think the correct answer from the choices listed above is the first option. A food chain is a one pathway through which energy moves from one trophic level to the next. It shows how each living thing gets food, and how nutrients and energy are passed in a single path.
8 0
3 years ago
Read 2 more answers
Day 1 Values and beliefs<br> What is the difference between a value and a belief?
jeka57 [31]
Beliefs are basically assumptions that we make about the world and as for values, include the concepts of “equality, loyalty..”
3 0
3 years ago
Most sports drinks contain both carbohydrates and salts. The carbohydrates replace glucose burned during exercise and the salts
Marina CMI [18]

Answer:

NaCl, because Na+is needed for glucose entry.

Explanation:

NaCl is the most beneficial for glucose absorption because of the action of the Sodium- Potassium ATPase, which is an enzyme that facilitates the adsorption of glucose into the cells.

It functions with the aid of energy by binding with the glucose or ATP and 3 ions of sodium. The ATP is hydrolyzed leading to the phosphorylation of the pump creating a conformational change of the pump. The ATP is deposited into the cells and Na+ released to the outside as K+ attach to the pump for dephosphorylation to take place. The cycle continues.

4 0
3 years ago
The following segment of DNA encodes for a short polypeptide. Note that DNA triplets encoding for the start codon (AUG) and a st
miskamm [114]

Answer:

So none of the option is correct.

Explanation:

As we know the transcription occurs in 5' to 3' direction so 3'-5' work as a template strand for the transcription and the mRNA formed will be :-

5' CCC AGC CUA GCC UUU GCA AGA GGC CAU AUC GAC 3'

Here there is no start codon( AUG) for translation.

So none of the option is correct.

There might be error in the nucleotide sequence.

CCC- pro

AGC - ser

CUA- leu

GCC- ala

UUU- phe

GCA- ala

AGA- arg

GGC- gly

CAU- his

AUC- lle

GAC- asp

3 0
3 years ago
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