Describe the process by which vaccines induce immunity.

Answers

Answer 1
Answer:

Vaccines have a tiny amount of the virus/disease/etc that is going to prevent you from that, this is injected into you and it will work due to injecting a dead cell of that disease into your body.


Related Questions

The first step in restoring pine woodlands is prescribed burning. T or F
Which process could a forensic scientist use to analyze a DNA sample from a crime scene to identify a criminal? A.Y-chromosome analysis B.recombinant DNA technology C.DNA fingerprinting D.paternity testing
Which of the following is a true statement about niches
which of the following is a common type of mutation A.insertion B.deletion C.genetic alterations D.all of the above
Which of the following statements is not true about the digestive system and its contribution to homeostasis? A. The digestive system helps to maintain the correct amounts of nutrients for the body tissues to do its job. B. The digestive system is responsible for monitoring the oxygen and carbon dioxide amounts in the blood and tissues. C. The digestive system breaks down food sources into the needed nutrients and deposits these nutrients into the blood for use by the cells. D. All of the above

A farmer sprays insecticide on his crops to kill unwanted insects. Most of the insects die, and the chemicals have the effect of damaging the DNA of the insects that are not killed. Which of these has happened?A. Sexual selection among the insects has changed the gene pool.
B. Genetic equilibrium has been maintained.
C. Mutations have arisen that may have altered allele frequencies.
D. Individuals with new genes have immigrated into the population.

Answers

The correct answer is option C, Mutations have arisen that may have altered allele frequencies

There have been several instances where mutation in the gene of an insect is caused due to the harmful external environmental condition which are either created or occurs naturally. Usually, the organisms evolve themselves to sustain in an adverse environment condition. In the process of evolution, they go through the process of positive genetic mutation but sometimes the mutation may also produce negative effect on the DNA of an species through wrong or inefficient pairing/coding.  Here in this case it can be stated that the chemical sprayed on insects might have attacked the gene pool of the insects thereby producing adverse genetic mutation.

When a farmer sprays insecticide on crops, the DNA of the insects that are not killed can be damaged, leading to mutations that may alter allele frequencies in the population.

A farmer spraying insecticide on his crops to kill unwanted insects has the effect of damaging the DNA of the insects that are not killed. This can lead to mutations that may alter allele frequencies in the insect population. Hence, the correct answer is C. Mutations have arisen that may have altered allele frequencies.

Learn more about Effect of insecticide spraying on insect DNA here:

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Men do not have all ___ in their testes at birth.

Answers

i believe it would be sperm 

What is the difference between an independent variable and a dependent variable

Answers

Independent does not change from the influence of the experiment and dependent does

Answer:

The difference between an independent variable and a dependent variable in an experiment is that the independent variable is the one that the researcher will change or alter in order to test the effects of the change on the dependent variable. The purpose of the experiment is to observe the relationship between changes in the independent variable and changes in the dependent variable. If the dependent variable changes as a result of the changes in the independent variable then the researcher knows that the two variable has a relationship.

Explanation:

Pharmaceutical companies are required by the FDA to conduct studies measuring drug efficacy by using informed human subjects that are randomly assigned to either a group that receives the drug being investigated or a group receiving a placebo. These studies are referred to as __________.

Answers

Answer:

Clinical studies

Explanation:

2. Heat is released when fossil when fuels are burned. This is an example ofA. Kinetic energy to chemical energy
B. Chemical energy to thermal energy
C. Nuclear energy to thermal energy
D. Potential energy to chemical energy

Answers

Answer:

The answer is B. Chemical energy to thermal energy Hopefully this helps!

A neighborhood group wants to build a new playground using donations from residents. The amount needed from each donor varies inversely to the number of people donating. If 25 people donate, each of them would need to contribute $135. Solve for the amount each person needs to contribute if 45 people donate.

Answers

First of all, we need to find out how much money is needed ,

25 x $ 135 = $ 3375 

Next, we just need to divide this amount to total contributors

$ 3375 / 45 = $ 75 per person

Hope this helps
 

Answer:

Each person needs to contribute is $75.

Step by step explanation:

It is given that the number of people is 25. Each of them would need to contribute $135.

Total amount contributed by 25 people is the product of 25 and 135.

25* 135=3375

Total amount contributed by 25 people is $3375.

Now 45 people has to contribute the same amount $3375.

If 45 people donate $3375, then each people donate

(3375)/(45)=75

Therefore, each person needs to contribute is $75.