What is herd immunity, and why are vaccines important for achieving herd immunity?

Answers

Answer 1

Answer:

Herd immunity is a form of indirect protection from infectious disease that can occur with some diseases when a sufficient percentage of a population has become immune to an infection, whether through vaccination or previous infections, thereby reducing the likelihood of infection for individuals who lack immunity.

Explanation:

Vaccines create immunity without causing illness or resulting complications. Herd immunity makes it possible to protect the population from a disease, including those who can't be vaccinated, such as newborns or those who have compromised immune systems.


Related Questions

how is specific gravity extracted from the earth?

Answers

Answer:

The formula for specific gravity, given that the reference substance is water, is the density of the object divided by the density of the water.

The wing of a bee and the wing of a bird are considered to be - A B s C D

A.) Vestigial structures
B.) Homologous structure
C.) Analogous structures
D.) Evolutionary structures

Answers

C. Analogous structures

Small molecules can cross the cell membrane through ______________ while water is transports across the cell membrane through __________________

Answers

Answer:

Small molecules can cross the cell membrane through a phospholid layer and water can diffuse through the lipid bilayer.

Explanation:

Answer:

phospholid layer and lipid bilayer.

Explanation:

Hope this helps

A certain microscopic single-celled organism is important to the dairy industry because when placed in milk, it consumes sugars in the milk and releases substances that react with the milk, adding flavor and thickening it. What kind of organism is this?

Answers

Answer:

I think its a type of bacteria but im not really sure, is there any choice options?

Explanation:

The dairy business depends on bacteria tiny single-celled organisms because, when added to milk, it consumes milk sugars and produce chemicals that react with the milk to taste and thicken it.

How dairy industry use bacteria?

Temperature, pH, water activity, salt-in-moisture levels, and other factors all have a significant impact on how quickly bacteria thrive in dairy goods.

In order to acidify the cheese milk before and during the preparation of dairy foods, starter microorganisms must be used. Streptococcus thermophilus, Lactobacillus sp., and Lactococcus lactis.

However, dairy firms now often standardize the process by adding domesticated bacterial cultures, such as strains of Lactococcus lactis, Streptococcus thermophilus, and Lactobacillus sp. it can be done by naturally existing lactic acid bacteria in the milk.

Therefore, the dairy business depends on bacteria tiny single-celled organisms.

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What is modified poliovirus?

Answers

Explanation:

Poliovirus, the causative agent of polio (also known as poliomyelitis), is a serotype of the species Enterovirus C, in the family of Picornaviridae.

Native polio virus which helps boost your immune system

Explain surface runoff. HELP PLSSSSSSS

Answers

Explanation: Surface runoff is water, from rain, snowmelt, or other sources, that flows over the land surface, and is a major component of the water cycle. Runoff that occurs on surfaces before reaching a channel is also called overland flow. A land area which produces runoff draining to a common point is called a watershed

Explanation:

surface runoff also called soil erosion is the washing away of top soil by the actions of moving water after rainfall. It occurs when the surface of soil is exposed to direct rainfall.

A small portion of an mRNA sequence is shown below.
AAUGACUGGCUC
Starting with the first base, how many codons does this portion of the sequence contain?

A. 6
B. 4
C. 1
D. 12

Answers

I’m not 100% sure but normally the codons are paired in 3s, so my guess is B lmk what the answer was:)

Epistasis is where one gene hides the effects of another gene. In labrador dogs, the dominant allele (E) determines whether the skin will have pigment. The dominant allele (B) determines how dark it is (color). Match the color dog with the correct genotype. Black lab Chocolate (brown) lab Yellow lab

Answers

Complete question:

I failed in finding the complete question. However, in the answer and explanation boxes, I will determine the genotypes of labrador for each color.

Answer:

For black-haired dogs: BBEE, BBEe, BbEE, BbEeFor brown (chocolate) color: bbEE, bbEeFor Yellow color: BBee, Bbee, bbee.

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files.

DNA replicates in the
nucleus cytoplasm
endoplasmic reticulum
cell membrane
where does it replicate? ​

Answers

Answer:

Nucleus

DNA replication happens in the nucleus of human cells. It will also take place within mitochondrial matrix.

Explanation:

DNA replication occurs during the S-stage of interphase. DNA replication (DNA amplification) can also be performed in vitro (artificially, outside a cell). DNA polymerases isolated from cells and artificial DNA primers can be used to start DNA synthesis at known sequences in a template DNA molecule.

About:

In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the most essential part for biological inheritance.

DNA replication takes place in the nucleus of the cell. Thus, the correct option for this question is A.

What is DNA replication?

DNA replication may be defined as the process through which the genomic DNA successfully gets copied into cells during the mechanism of cell division. It is a process of creating two identical replicas of DNA from one original DNA molecule.

According to the context of this question, the process of DNA replication takes place during the S-phase of interphase. During this phase, the amont of genetic content doubles in the cell which is then separated into daughter cells equally followed by cytokinesis.

Therefore, DNA replication takes place in the nucleus of the cell. Thus, the correct option for this question is A.

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what are the five differences between omnivorous and carnivorous animals

Answers

Diet, Jaw, Teeth, Gut, Digestive enzymes

How many parts does Mitosis have?
2.
4
1
3

Answers

Answer:

The answer is 4.

Explanation:

The answer is 4

Hope it helps :)

A fire sits 72 feet from the abs of 125 foot tall building. Find the angle of Evel at ion from the fire to the top of the building

Answers

Answer:

60°

Explanation:

From the attachment,

Opposite side of the triangle= 125 feet

Adjacent=72 feet

Angle of elevation= (θ)

From trigonometry,

Tan (θ)= Opposite side /Adjacent adjacent

Where

(θ)=angle of elevation

If we substitute to above expresion we have

tan(θ)= 125/72

tan(θ)= 1.736

Tan^-1(1.736)=60°

θ= 60°

Hence, the angle of Evel at ion from the fire to the top of the building is 60°

Hello!! I need help on this question ASAP!
OKAY HERE

Which option best explains how consumers like omnivores, herbivores, and carnivores are dependent on other living things for food?

1)Plants make their own food using sunlight. Herbivores eat plants for food. Omnivores eat plants and animals for food. Carnivores eat animals for food.

2)The flow of food starts with sunlight. Plants make food through photosynthesis. Herbivores eat omnivores for food. Omnivores eat plants for food. Carnivores use sunlight to make their own food.

3)Energy flow starts with plants. Plants make their own energy. Omnivores get their energy by eating plants. Herbivores eat carnivores for food. Carnivores eat plants for food.

4)Herbivores make their own energy using sunlight. Plants eat herbivores for food. Omnivores eat animals for food. Carnivores eat herbivores for food.

thank you if you answered!!!

Answers

Answer:

Plant make their own food using sunlight. Hebivores eat plants for food. Omnivores eat plants and animals for food.Carnivores eat animals for food

PLEASE HELP!!! I. NEED HELP IN BIOLOGY FAST!! EXPLAIN!!

Answers

Answer:

True

Explanation:

Most cells are specialised to perform particular functions, such as red blood cells? that carry oxygen around our bodies in the blood, but they are unable to divide. Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost.

Answer:

True

Explanation:

sometimes people experience a burning sensation in their muscles during exercise. briefly explain why this happens​

Answers

Answer: bebesitaaaaaaa

Explanation:

Answer:

Lactic Acid

Explanation:

When e exercising we sometimes feel a burning sensation either in our lungs or our muscles that goes away shortly after the activity. Caused by the build up of Lactic Acid

One theory of early life on Earth states that the first life forms did not use oxygen for respiration and were unable to make their own food. Based on this theory, which types of organisms were most likely present?


aerobic, autotrophic bacteria


aerobic, heterotrophic bacteria


anaerobic, autotrophic bacteria


anaerobic, heterotrophic bacteria

Answers

Answer:

Early organisms would have to be anaerobic, as air was likely non existent. This rules out the first two options.

Autotrophic can be called producers, and heterotrophic can be called consumers.

The question states that "did not use oxygen for respiration and were unable to make their own food"

Only one option satisfies the question:

anaerobic, heterotrophic bacteria

Answer:

Anaerobic, heterotrophic bacteria

Explanation:

i got it right on k12

What is a factor that is necessary for the formation of a new species

Reproduction at different times

Reproductive isolation

Geographic barriers

Different mating behaviors

Answers

Reproductive isolation

Because essentially both organisms are isolated so they end up doing it

Infectious diseases have an easier time spreading now than they did several hundred years ago. What about society has changed that makes this possible? Describe at least TWO reasons.

Answers

Answer:

see below :)

Explanation:

Infectious are more easily spread nowadays becuse of an increased population. The more the population increases, the bigger the advantage an infectious disease has. As of right now, because everyone is wearing masks, their immune systems are being weakened. Another reason for this is because of the increase in chemicals in our foods, which are now being transferred to our bodies. All of the medications people are taking also have an affect on the spread of disease; it gives diseases a chance to mutate.

Can we do the candies task in among us together

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______ is a source of genetic variation that involves the swapping of sections of chromosomes during meiosis

Answers

Answer:

Crossing over.

Explanation:

I do believe that is the correct answer.

I POSTED THIS A MILLION TIMES BUT EVERYONE IS GIVING ME THE WRONG ANSWER PLEASE HELP ME IF YOU CAN

What is the main function of the Krebs cycle?

A. To break glucose down into two pyruvate molecules
OB. To produce carbon dioxide for use in the thylakoid
O C. To produce large numbers of ATP molecules
O D. To provide molecules for the electron transport chain

Answers

Answer:

d

Explanation:

To provide molecules for the electron transport chain

What is the result of normal chromosome replication?
O a
b
Lost or worn out chromosomes are replaced.
Each daughter cell is provided with twice as many
chromosomes as the parent cell.
The exact number of centrioles is provided for
spindle fiber attachment.
Two identical sets of chromosomes are produced.

Answers

Answer:

Two identical sets of chromosomes are produced.

Explanation:

hope this helps!

What is not a responsibility of the nervous system?
A. Perception
B. Speech
C. Movement
D. Emotion

Answers

Answer:

Explanation:

Answer:

Speech is the correct answer trust me

Explanation:

help please will give brainliest to anyone who is good at ​

Answers

Answer:

The way to figure this this type of question out is card by card. So the first card in the second hand is 2 in 52 (It can match either of the cards in the previous hand). × 1 in 51 ( it has to match the card that was not matched by the first card and there are 51 choises left). So 2 in 52 = 1 in 26 x 1 in 51 = 1 in 26 x 51 = 1 in 1326

Explanation:

Hope this helps! Remember to reword it incase your teacher checks for plagiarism! I recommend Quillbot to help!

- Eijiro <3

If mutated DNA Sequence #1 occurred in a single cell on the membrane of a fish, how might it impact the organism?

Answers

Answer and Explanation:

This would cause defective proteins to be created in the body that would not form the fish membrane correctly and promote problems with the control and functioning of that membrane. This could harm the organism in many activities, limit its life expectancy, cause discomfort and cause a strain that presents the same problem, since these flaws can be inherited genetically.

A mutated DNA sequence is a DNA molecule that has nucleotides in the wrong order, which causes a mutation and does not allow the correct formation of proteins.

Which of these is a physical change that takes place in a garden? O A. Leaves convert sunlight to sugar by photosynthesis, O B. Flowers grow after a summer rain shower. O C. Insects eat the leaves of a plant for food. OD. Earthworms loosen soil as they travel through it.​

Answers

I’m gonna go with c braces the insects are physically eating the leaves

Use the student's hypothesis to predict which parachute, A, B or C, will hit the ground first. Give a reason for your answer?

Answers

Answer:

The heavier will come first to hit the ground.

Explanation:

That parachute will come faster and hit the ground first which has more weight than other parachutes because the heavier objects comes to the earth at faster rate as compared to light objects. So if all the three parachute has same size and shape but difference in weight than the heavier one comes to the ground first as compared to other two parachutes.

Please help!
List four physical characteristics necessary for life to exist. Of these four, which two explain the pattern of terrestrial biomes?

Answers

Answer: Factors affecting biome type include latitude, humidity, and elevation. Terrestrial biomes include the tropical rainforest, chaparral, and taiga.

Explanation:

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ddo-juuc-dvo this is code 0nly c0me girls​

Answers

HAHAHA, LOL

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dududu

When the solution has less particles than what’s in the cell ___________________

Answers

Answer:

ice

Explanation:

it has the lowest please give brainly est

Answer:

hypotonic

Explanation:

Hope this helps

______pressure gives nonwoody plants their shape.

A.Chlorophyll
B.Anaerobic
C.Flaccid
D.Aerobic
E.Turgor

Answers

Answer: E. Turgor

Explanation: can i help u with more?

Turgor pressure gives the non-woody plants their shape. Thus, the correct option is E.

What is Turgor pressure?

Turgor pressure is the force which is present within the cell that pushes the plasma membrane against the cell wall. It is also called as hydrostatic pressure, and also defined as the pressure in a fluid which is measured at a certain point within itself when the fluid is at equilibrium.

Generally, the turgor pressure is caused by the osmotic flow of water and occurs in the plants, fungi, and bacteria which contain cell wall. The phenomenon is also observed in the protists which have cell walls. This system is not seen in the animal cells, due to the absence of a cell wall in the cell which would cause the cell to lyse when placed under too much pressure condition.

Therefore, the correct option is E.

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