Explain how vaccines work? Using the words virus, immune system, white blood cells, memory cells and vaccine

Answers

Answer 1
Vaccines work by training the immune system to recognize and combat pathogens, either viruses or bacteria. In order to do this, certain molecules from the pathogen need to be introduced into the body to trigger an immune response. These molecules are called antigens, and they’re present on all viruses and bacteria. Memory cells are then formed to remember the same pathogen for faster antibody production in future infections. Vaccinations increase the level of circulating antibodies against a certain antigen. Antibodies are produced by a type of white blood cell (lymphocyte) called B cells.

Related Questions

Velocity is the speed of an object plus its _

Answers

Answer:

Direction

Explanation:

Answer:

Direction

Explanation:

pls mark brainliest

11. What happens during the S phase of the cell cycle?
The cell makes daughter cells.
The cell doubles in size.
The cell copies its organelles.
The cell copies its DNA.​

Answers

Answer:

I believe it's The cell copies its DNA.

Explanation:

4.
What in the focal independent variable in this
experiment?
A. Fruit type
B. City
C. Cost per pound
D. Popularity
E. Flavor

Answers

What experiment? Id prob say popularity

what does your blood pick up from the cells

Answers

the waste from the cells

Answer:

Waste

Explanation:

The blood brings necessary things, like oxygen and nutrients to the cells. After the cells are given these things, the blood picks up waste products, such as carbon dioxide or excess water, and delivers it to certain areas to be removed from the body. For example, carbon dioxide is brought to the lungs by the blood, so it can be exhaled out.

Which undefined geometric term can be described as a one-dimensional set of points that has no beginning or end?

Answers

Answer:

jchchmnvbmcnvchbvhjlscjbvhjxcnbvhjilickkidsjdhfkdhjxncvmjdhvcmvbhcmvnbcvmncbvcnv

Explanation:

Cerebral cortex:_________
a) A thin mantle of gray matter about the size of a formal dinner napkin covering the surface of each cerebral hemisphere.
b) The cerebral cortex is crumpled and folded, forming numerous convolutions (gyri) and crevices (sulci).
c) It is made up of six layers of nerve cells and the nerve pathways that connect them.
d) The cerebral cortex is responsible for the processes of thought, perception and memory and serves as the seat of advanced motor function, social abilities, language, and problem solving.

Answers

Answer:

d) The cerebral cortex is responsible for the processes of thought, perception and memory and serves as the seat of advanced motor function, social abilities, language, and problem solving.

What competitive processes or forces are ever-present during a star's lifetime?

Answers

Answer:

Force of Gravity

Explanation:

It should be understood that just like all other lives, the stars are also produced and die at a given or specific time.

And during its course of living, it is bound to struggle with the gravitational force or force of gravity through its entire life.

How has society influenced science during the pandemic?

Answers

Answer:

society have  been more careful from diseases and people are learning their lesson not to eat things that we are not supposed to eat

Explanation:

#allivesmatter

The pigment that absorbs energy from the sun for photosynthesis is called;

A chlorophyll
B condensation
C photosynthesis

Answers

Answer:

A . chlorophyll

Explanation:

option a is correct answer

A higher concentration of molecules cause a faster chemical reaction. This is known as_____.

Answers

Answer: equilibrium phenomenon

Explanation:

All cells need energy to live. How do the organelles in the plant cell above work together to get and use this energy?
A.
The nucleus makes energy from materials in the cell, and the vacuole stores this energy until the cell needs to use it.
B.
Chloroplasts make food using energy from the Sun, and mitochondria break down this food to release energy for the cell.
C.
Mitochondria take in food from the environment, and the nucleus breaks down this food to release its energy to the cell.
D.
The vacuole takes in energy from the environment, and chloroplasts change this energy into a form the cell can use.

Answers

Answer:

B

Explanation:

Glucose and other carbohydrates made by plants during photosynthesis are broken down by the process of aerobic cellular respiration (requires oxygen) in the mitochondria of the cell. This releases energy (ATP) for the cell. Because they break chemical bonds of glucose to release energy to do work in a cell.

Chloroplasts make food using energy from the Sun, and mitochondria break down this food to release energy for the cell. Thus, the correct option is B.

How do the organelles work in a plant cell?

Plant cell organelles are the specialized organelles which help to maintain the structure of the plant cell, such as the water containing vacuoles and the rigid cell wall which is made up of cellulose. The chloroplasts in the plant cell are the organelles that contain chlorophyll pigment and allow plant cells to do photosynthesis and produce carbohydrate.

Glucose and other carbohydrates (sugars) are made by plant cells during photosynthesis are then broken down by the process of aerobic cellular respiration which requires oxygen molecule in the mitochondria of the plant cell. This releases energy in the form of ATP for the cell. Because they break the chemical bonds which are present in the glucose molecule to release energy to do work in a cell.

Therefore, the correct option is B.

Learn more about Plant cell here:

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An ecosystem has many levels of organization. Which level will have the most individuals?

Answers

Answer:

Community

Explanation:

A community is all the biotic factors of an ecosystem. There are many populations of different species within an area. These populations in one area is a community. A community and its abiotic features is a ecosystem. Therefore, communities have the most individuals in an ecosystem.





Compartmentalization gives eukaryotic cells advantages over prokaryotic cells, mostly in the efficiency of cellular processes. However, despite the fact that prokaryotic cells lack membrane-bound organelles, they must still perform cellular processes necessary for survival and reproduction. Prokaryotes have internal regions with specialized structures and functions and can often use enzymes in their cell membrane for cellular processes. Prokaryotes and eukaryotes have many cellular processes in common. All but ONE apply.
A) mitosis
B) photosynthesis
C) protein synthesis
D) aerobic cellular respiration
its mitosis

Answers


C) protein synthesis

Prokaryotes and eukaryotes both make proteins

what is a dependent variable​

Answers

A dependent variable is exactly what it sounds like it is something that depends on other factors for example a test score could be a dependent variable because it could change depending on several factors such as how much you studied how much sleep you got the night before you took the test or even how hungry you were when you took it. Usually when you are looking for a relationship between two things you are trying to find out what makes the D pendant variable change the way it does.

Many people have trouble Remembering which is the independent variable and which is the dependent variable. An easy way to remember is to insert the names of two variables you are using in the sentence in the way that makes more sense to you. Then you can figure out which is the independent variable and which is a dependent variable.

the Independent variable causes a change in the dependent variable and it isn’t possible that the dependent variable could cause change in the dependent variable

Which statements describe the energy in a food chain? Select three options.

Answers

Answer:

a food chain shows how the organisms are related with each other by the food they eat.

Explanation:

Choose the correct option
An Insect that live in colony is
1) Ants
2) Dragon fly
3) House fly

Answers

The answer is 1) Ants

Help me figure this out!!!

Answers

Bladder: temporary storage place for urine

Ureter: tube that carries urine from kidneys to bladder

Kidney: filters waste material from blood

Urethra: exit way of urine from body

Nephron: functional unit of kidney

Ureter is a tube that carries urine from the kidneys to the bladder

Kidney is a filter of waste material from blood

Urethra is an exit way of urine from the body

Nephron is a functional unit of kidney

Bladder temporary storage place for urine

The graph shows the populations of two species in a particular region over two decades. Based on the graph, what can you conclude about the relationship between the two species?

Answers

The correct answer is - B. Mutualistic. The symbiotic relationship shown in this graph is most likely a mutualistic symbiotic relationship. in a mutualistic symbiotic relationship, the two species benefit from one another, in a way they collaborate for the well-being of both of them. this leads to a situation where the increase in numbers of one of the species, the other species also experiences increase in numbers, and if one of them has a decrease in numbers, it is very likely that the other species will experience the same. in this graph we have exactly that kind of situation one of the species experiences increasing in numbers, and the other species follows the same pattern, which most likely means that a mutualistic symbiotic relationship exist between the two species.

The two species are mutualistic in nature. The two species exhibit commensalism.

Fragile marine ecosystems have been destroyed in the production of this type of energy.

water energy

nuclear energy

fossil fuel energy

geothermal energy

Answers

Answer:

Fossil fuel energy

Explanation:

Temperatures keep rising causing ocean levels to rise or fall

What is “outgassing”?

a. When animals burp
b. The gas that comes out from the earth during a volcanic eruption
c. Gas travels out from one planet to another
d. When a rock is squeezed, the lighter gas flows out.

Answers

Answer:

B

Explanation:

Answer:

B.

Explanation:

It is the release of a gas that was dissolved, trapped, frozen, or absorbed in some material.

What is the diference between the axial and appendicular skeleton

Answers

Answer:

the axial skeleton is the bones where appendicular skeleton is the bones that support the appendages

What are the three types of RNA?

Answers

Answer:

mRNA, or messenger RNA;

rRNA, or ribosomal RNA;

tRNA, or transfer RNA.

Answer:

Three major types of RNA are mRNA, or messenger RNA, that serve as temporary copies of the information found in DNA; rRNA, or ribosomal RNA, that serve as structural components of protein-making structures known as ribosomes; and finally, tRNA, or transfer RNA, that ferry amino acids to the ribosome to be assembled .

Explanation:

I hope this helps! :)

Plasma is the ____________.

A) Fibers in blood
B) Matrix of blood
C) Cell that phagocytizes bacteria
D) Cell fragment found in the tissue

Answers

Answer:

matrix of blood

Explanation:

Explain how the boss at the company in the following scenario could have delegated the tasks more appropriately : Samuel and Martha work at the same agricultural consultation company . Samuel works in agricultural quality control, while Martha is an agricultural logistics specialist . A new boss delegated Martha to negotiate a financial deal with a farm and then create a strategy for the farm.

Answers

Answer:

The new boss take the right decision.

Explanation:

The new boss sent Martha to the farm for the financial deal and strategy for the farm is the right choice because Martha is a specialist in agricultural logistics which has good management skill that is required by the task in the farm. Samuel is not a good choice for sending him to the farm because he works in agricultural quality control which is different from the job of Martha.

When a deer hears a sound in the forest such as crackling footsteps it immediately freezes and bolts through the bushes this is an example of the. Response

Answers

Answer:

Conditioned response

Explanation:

When a stimulus is generated on the basis of learning behaviour of an individual then it is known as conditioned response. While unconditioned responses are produced naturally.  

In this question, when the deer heard the crackling noise, he could relate it with the upcoming danger and hence in order to save himself he hides behind the bushes.  

What's the answer to this question? I need an explanation please.

Answers

Answer:

D.

Explanation:

Try it mate

Q1: The distance between wave crests is called___

a - wavelength
b - amplitude
c - frequency
d - speed

Q2: The hight of a wave is called its____

a - amplitude
b- altitude
c - wavelength
d - atmosphere

Answers

Answer:

1 is a wavelength

2 is a = amplitude

Explanation:

Answer:

Wavelength and amplitude

Explanation:

Which two classes make up the majority of crustaceans?

Answers

Answer:yes

Explanation:

Scientists must be able to repeat an experiment and get very similar results; otherwise their conclusions will be questioned. If
the results of a repeated experiment are different from the original results, the results of the experiment
lack bias
are precise.
lack controls.
are flawed.

Answers

the result of the experiment is precise

Answer:

are flawed

Explanation:

got it right on e2020

Which statement describes the ability of the cell membrane to allow various substance to move through it?
The cell membrane is selectively permeable.
The cell membrane is composed of lipids and phosphates.
The cell membrane is both hydrophilic and hydrophobic.
The cell membrane is a bilayer structure.

Answers

Answer:

the cell membrane is selectively permeable

Explanation:

hope that helped

The statement that is the cell membrane is selectively permeable is the statement, which describes the tendency of the cell membrane to permit various substances to move through it.  

• The cell membrane comprises a phospholipid bilayer with proteins embedded in it. These proteins perform a number of functions, and the most important function it performs is that they regulate what moves out and what moves in the cell.  

• The membrane is selectively permeable as the substances do not pass through it indiscriminately.  

• Some of the molecules like oxygen and hydrocarbons can pass through it, while some of the large molecules like glucose and sugars cannot pass through it.  

Thus, the cell membrane is selectively permeable.

To know more about:

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