BIOLOGY HIGH SCHOOL

How can vaccinations prevent the onset of certain diseases or disorders? a) Vaccinations build up the body's hormonal balances. b) Vaccinations build up the body's ability to fight illnesses. c) Vaccinations build up the body's ability to cure tumors. d) Vaccinations build up the body's sensitivity to medications.

Answers

Answer 1
Answer:

Answer:

B)

Explanation:

Vaccinations build the body's ability to fight illnesses by introducing a de-activated virus to the body, which then produces antibodies that can kill the virus. The immune system can then "remember" the viruses' structure for future encounters.

Related Questions

A child with a bloated belly ,thin hair, and an inability to concentrate may be suffering from malnutrition
Meiosis produces which cell type? haploid diploid chromosome somatic
A student looking through a light microscope saw this cell in cytokinesis. This cell is most likely from — *
What plot archetype is employed in Carl Sandburg's "How the Animals Lost Their Tails and Got Them Back Traveling from Philadelphia to Medicine Hat"?A) comedy B) tragedy C) rags to riches D) quest
Gregor Mendel is referred to as the father of which classical science?

Which one of the following statements accurately describes a characteristic of red blood cells?

Answers

They transport oxygen to all the cells of the body!

What is the key function of sphincters found along the digestive system?a. thet selectively allow and stop passage of partially digested food.
b. they control and direct the quantity of food passing through the digestive organs and prevent backward movement of partially digested food.
c. they improve the muscular strength of the organs involved in digestion.

Answers

The key function of the sphincters found along the digestive system is that they control and direct the quantity of food passing through the digestive organs and prevent backward movement of partially digested food. The correct answer is option B.

The correct answer is B. They control and direct the quantity of food passing through the digestive organs and prevent backward movement of partially digested food.

Explanation:

In biology, sphincters are a type of muscle that can regulate the passage of substances. In the digestive system, sphincters can be found mainly in the upper and lower zone of the stomach, between the small and large intestine and at the anus. In all cases, the sphincters regulate the amount of digested food or other substances that pass through the organs and also prevents the substances that have already passed to a new organ or zone of the digestive system can go backward.

Due to this sphincters are essential for regulating the movement of food and other substances to be correctly digested and to pass through different organs. According to this, the key function of these muscles is "control and direct the quantity of food passing through the digestive organs and prevent backward movement of partially digested food".

Pests have always been a nuisance for farmers. The use of pesticides dramatically improved the success of crops; however, it has been found that some insects are no longer harmed by traditional pesticides. How would Charles Darwin, the man behind the theory of evolution by means of natural selection, explain this phenomenon. A) Through random mutations in DNA, some pests developed a resistance to the pesticide.


B) The chemicals used in pesticides today are not strong enough to kill unwanted pests.


C) The pesticides used in the past caused unwanted mutations in pests causing them to mutate into superbugs.


D) Through repeated exposure to the pesticides, the pests simply got use to to the chemicals and built up a resistance.

Answers

The basis of the process of Natural selection is the random mutation: some organisms develop random mutations which increase their chance for survival and they survive more likely than other organisms and reproduce. 

So the correct answer is:
A) Through random mutations in DNA, some pests developed a resistance to the pesticide.

Answer: A

Explanation: Through random mutations in DNA, some pests developed a resistance to the pesticide. Through random mutations in DNA, some pests became resistant to the chemicals. These resistant forms are the ones to survive, reproduce, and pass on their genes.

Gregory is studying Lake Mairead. The lake has clear water and supports a healthy community of algae, fishes, and other aquatic organisms Gregory hypothesizes that phosphorus is a limiting nutrient in the lake. Which experimental result provides me strongest evidence in support of the hypothesis?

Answers

Answer:b

Explanation:

Using what you've learned about the nucleus, how could you identify it by looking at a cellthrough a microscope.

Answers

It may be the largest organelle in the cell, filled with dark-colored chromatin. You won't be able to see the DNA with a school microscope, but you can see the chromatin, which will look like Ramen noodles.

The Ring of Fire is a string of volcanic sites in the Pacific Ocean that stretches between the Americas, Asia, and Australia. What is the most likely cause of this volcanic activity?a
The Earth’s core pushes through tectonic plates here
b
There is a high number of convergent tectonic plate boundaries
c
The melting of tectonic plates by particularly hot parts of the Earth's crust

d
The explosion of energy as a result of a collision between two nearby tectonic plates

Answers

Answer:

Explanation:a
Other Questions
To what extent can very large earthquakes be predicted
Ayuden ahora porfa ❤️❤️❤️
Carla has applied for a loan. Choose from the following conditions the one that makes it likely that she will get an unsecured loan. A. She has a very good credit history. B. She is ready to pay a huge amount in interest. C. She is willing to put up her home as collateral for the loan.
The domestication of plants and animals is a hallmark ofSelect one:a. the hominids. b. Homo erectus. c. the paleolithic era d. the neolithic era. e. the first Homo sapiens.