The flu vaccine last a short time because the flu virus

Answers

Answer 1
Answer: The flu virus mutates is why the flu vaccine lasts a short time.
Answer 2
Answer:

Answer:Normally because the flu virus doesn't last very long because your body is very used to the flu.


Related Questions

What two instruments made navigation much easier in the 1900s?Global Positioning Satellite (GPS) and two-way radio The chronometer and the astrolab The cross-staff and the compass. The chronometer and the compass.
A biology class wanted to study the effect of different materials on the melting rate of ice. They placed pieces of ice, each with a mass of 10g, onto trays. Group 1 was covered in plastic, group 2 was covered in paper, group 3 was covered in aluminum, and group 4 remained uncovered.Each piece of ice was allowed to melt for 15 minutes. Then final mass of the ice, minus the melted water, was recorded at the end of the experiment. Which of the following is the control group in this experiment?
Which can be used to characterize blood flow in the human body? a: There is a unidirectional blood flow. b: Arteries always carry oxygenated blood. c: Veins always carry deoxygenated blood. d: Arteries carry blood away from the heart. e: Veins carry blood toward the heart.
Lactase is an enzyme that breaks down a sugar found in dairy products known as lactose. Some people are lactose intolerant, and this can be due to not having enough lactase production.People who are lactose intolerant may not feel well after eating foods containing lactose. Identify the enzyme
The Xylem is the vascular tissue that moves water up the plant. Phloem is the vascular tissue that moves food up or down the plant.TrueFalse

Which best describes the importance of mitosis to living organisms?

Answers

For multicellular organisms, mitosis is responsible for growth, replacement of dead cells and tissue regeneration. For the single-celled organisms, mitosis is responsible for asexual reproduction .

hope this helps!

What is the purpose of transfer rna

Answers

Transfer RNA (tRNA) is a type of ribonucleic acid. It brings amino acids to the ribosomes and mRNA for the structural organization into proteins. Thus, option D is correct.

What is tRNA?

tRNA is an adaptor molecule that decodes the mRNA sequences in the form of amino acids through the ribosomes. It is involved in the translation process of complex protein synthesis.

tRNA transports the amino acids (codons) to the ribosomes to join them with their complementary (anti-codon) sequence for the polypeptide assembly.

Therefore, the tRNA carries amino acids for polypeptide formation.

Learn more about tRNA here:

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The complete question is attached to the image below.

To bring protein subunits known as amino acids to ribosomes where proteins are constructed

Upturned Face by Stephen Crane (excerpt)

Read the excerpt about two men trying to bury a dead soldier right in the middle of a battle.

"Yes," said Lean. The two privates stood waiting, bent over their implements. "I suppose," said Lean, "it would be better if we laid him in ourselves."

"Yes," said the adjutant. Then apparently remembering that he had made Lean search the body, he stooped with great fortitude and took hold of the dead officer's clothing. Lean joined him. Both were particular that their fingers should not feel the corpse. They tugged away; the corpse lifted, heaved, toppled, flopped into the grave, and the two officers, straightening, looked again at each other—they were always looking at each other. They sighed with relief.

The adjutant said, "I suppose we should—we should say something. Do you know the service, Tim?"

"They don't read the service until the grave is filled in," said Lean, pressing his lips to an academic expression.

"Don't they?" said the adjutant, shocked that he had made the mistake.

"Oh, well," he cried, suddenly, "let us—let us say something—while he can hear us."

"All right," said Lean. "Do you know the service?"

"I can't remember a line of it," said the adjutant.

Lean was extremely dubious. "I can repeat two lines, but—"

"Well, do it," said the adjutant. "Go as far as you can. That's better than nothing. And the beasts have got our range exactly."

Lean looked at his two men. "Attention," he barked. The privates came to attention with a click, looking much aggrieved. The adjutant lowered his helmet to his knee. Lean, bareheaded, he stood over the grave. The Rostina sharpshooters fired briskly.

What are the tone and mood of the passage?
A. The tone of the story is serious and the mood is one of anticipation.
B. The tone of the story is neutral and the mood is one of desperation.
C. The tone of the story is somewhat hopeful and the mood is cheerful.
D. The tone of the story is sympathetic and the mood is sorrowful.
E. The tone of the story is somewhat humorous and the mood is uneasy.

Answers

"The tone of the story is somewhat humorous and the mood is uneasy" is the one among the following choices given in the question that are the tone and mood of the passage. The correct option among all the options that are given in the question is the last option or option "E". I hope the answer has come to your help.

Which group of chordates does not possess true backbones? A. Crocodilians
B. Lampreys
C. Birds
D. Frogs and toads

Would it be A.?

Answers


No. Crocodilians are reptiles. and they are vertebrates, meaning they have a backbone. The answer is Lamprey.

it would be the lampreys because  they do have a backbone

. Which of the following is true of RNA compared to DNA?. A.It lacks phosphate groups.. B.It is a single-stranded molecule.. C.Its nucleotides do not have sugars.. D.It contains four different nucleotides.

Answers

the one that is true of RNA compared to DNA is : B. it is a single-stranded molecule
Meanwhile , DNA is double stranded to help it protected from a potential mutagen

hope this helps

Answer:

B. It is a single-stranded molecule

Explanation:

Unlike DNA, RNA is usually single stranded and can folds back upon itself forming a secondary structure known as Hairpin loop. DNA is double stranded. In this way both RNA and DNA become more stable and are prevented from forming bonds with other molecules.

What is the correlation between salinity and density?

Answers

Salinity is the concentration of dissolved salts in water. Density is the degree of compactness in a substance. By determining the salinity of a substance, you would also be determining the density.
The more salt in water, the denser water becomes. This is your correlation.