Memory effector cells are also produced in the case that the same pathogen enters the organism again.
true or false

Answers

Answer 1

Answer:

True

Explanation:

The first contact that an organism has with a particular antigen will result in the production of effector T and B cells which are activated cells that defend against the pathogen. ... Memory T and memory B cells are also produced in the case that the same pathogen enters the organism again.


Related Questions

What type of trait is the body length?

Answers

The type of trait the body length is, is polygenic

BRAINLY TO WHOEVER CAN HELP

Organisms are classified into kingdoms primarily on the basis of
A)behavior
B)structure
C)size
D)habitat

Answers

Answer:

B Structure :)

Explanation:

PLEASE ITS ALREADY LATE PLEASE HELPPPP
Given these origins of the word transcription trans + script, why do you think scientists named the
process that way?

Answers

to scripe is to rewrite trans is to make . simply means there is a message written for the formation of something (the protein) that message is written or performed based on previous information

the gravity of the Sun and Moon pull Earth's surface in opposite direction:

Answers

Answer:

The moon's gravity pulls more on the planet than the water on the opposite side.These two waters bulges on opposite sides of the Earth aligned with moon are the high tides.Spring tide occure when the Earth,the Sun and the moon are aligned,increasing the gravitational pull on the oceans.

Explanation:

i hope its helps

WORD BANK: Carbon Dioxide, Glucose, Sunlight(Energy), Oxygen, Water, ATP(Energy)

Answers

Answer:

1. carbon dioxide

2.atp

3. oxygen

4. glucose

Explanation:

Base your answer to this question on the following information: You have isolated a primary signal factor from the blood of a space alien, which you name XFF (for X-files factor). You also have Isolated various types of alien cells which appear to Interact with XFF. Based on preliminar data, you think that XFF could be similar to one of three compounds normally found in human blood: epidermal growth factor (EGF), epinephrine, or estrogen. Which of the following would best be used to demorstrate XFF is most like EGF?
A. exposure of cells to tyrosine kinase inhibitors
B. microinjection into cells of nonhydrolyzable GTP analogues
C. exposure of cells to ryanodine
D. exposure of cells to radioactive XFF
E. receptor binding assays

Answers

Answer:

The correct answer is - A. exposure of cells to tyrosine kinase inhibitors.

Explanation:

EGF or epidermal growth factor is a protein compound found in human blood responsible for signaling is the member receptor tyrosine kinase family of proteins.

EGF signaling leads to activation or stimulation of various pathways such as Phosphatidylinositol 3-kinase, Ras and or Raf signaling, and or Akt signaling chain of reactions, or STAT pathway. By exposing the cells to the tyrosine kinase inhibitors leads to any of the given pathways then XFF is most likely similar to EGF.

Which organelle converts energy from nutrients?
A. Ribosome
B. Vacuole
C. Nuclues
D. Mitochondria


HELP ME PLEASE

Answers

Answer:

ç.

Explanation:

please click the heart and rate excellent and brainleist to

Not every evosystem has large areas of similar vegetation, as the habitats in you study do. I'm areas where patches of more visually varied habitats exist, individual snails regularly move into or out of different visual surroubdings

Answers

Answer:

High diversity of organisms are present.

Explanation:

Due to the existence of varied habitats in the ecosystem, there is high diversity of organisms in that ecosystem because there are different types of habitats are present in that ecosystem. Due to presence of more habitats for organisms and suitable conditions, different types of organisms lives in that one ecosystem which increases the diversity of that ecosystem. If the ecosystem has only one type of habitat, then the ecosystem will be less diversified as compared to ecosystem having varied habitats.

What ways can you get immune to viruses?

Answers

Answer:

n a nutshell, eating healthily, unprocessed foods, staying active and getting enough sleep are the simplest way to ensure your immune system is healthy enough to fight off germs.

Explanation:

Which of the following is NOT a result of cell division

a
reproduction
b
nutrition
c
growth
d
repair

Answers

Answer:

its d repair crlls can't repair itself

Cell division is the division of cells through a series of events. It results in reproduction, growth and repair. Nutrition is not a result of cell division.

What is a cell cycle?

Cell cycle is a series of event where a cell grow, differentiate, accumulate nutrients, duplicates its genome and divide to form daughter cells.

Cell cycle has two phases in which one is interphase in which the cell grow and accumulate nutrition, along with this cell duplicates its genome. Second phase is M-phase in which cell division takes place.

Cell division helps cell in reproduction, growth and repair.

Thus, the correct option is b, as nutrition as it is not a result of cell division.

For more details regarding the cell cycle, visit:

https://brainly.com/question/15876101

#SPJ2

Is this an accurate description of the water cycle?

The water cycle is water in the sea or ocean that gets evaporated, that’s condensation. It turns into clouds but then just falls again as rain/snow, that’s precipitation. It goes to streams and runoffs. That is the water cycle.

Answers

Answer:

Yes,I think this is correct

Answer:

right, maybe that's the right answer

Explanation:

sorry if my answer is wrong

please help me on this and no link's please

Answers

Answer:

A would be the best answer.

Explanation:

A seems to be the answer that matches data shown on the graph.

A because I remember takeoff this test

What is the relationship between a cheetah and a deer

Answers

Answer:

prey-predator relationship: a cheetah trying to capture a deer so it can eat it.

Explanation:

hope this helps!

-lei

1. The innate tendeney of offspring to resemble their parents is called
a) varaition
b) herldity
c) Inheritance
d) resemblance

Answers

Answer:
Heredity

Sorry if it’s wrong : (
The answer is Heredity

How is Cytochrome C, which is an important enzyme in cellular respiration, used to provide evidence for evolution. bones (homologous structures) are used for similar uses if the organisms are more closely related bones (homologous structures) are used for similar uses if the organisms are more closely related sections of DNA are more similar in organism more closely related. sections of DNA are more similar in organism more closely related. organisms that are more closely related are found with similar embryonic structures. organisms that are more closely related are found with similar embryonic structures. fossils in various layers are more closely related if they are in the same layer

Answers

Answer:

Sections of DNA are more similar in organism more closely related

Cytochrome c is used to provide evidence for evolution because most animals have this protein and is has undergone very little changes in these organisms such that more closely related species have the most similarity in amino acid sequence of cytochrome c

Explanation:

Cytochrome c is a protein found in mitochondria and is an important enzyme in cellular respiration. Cytochrome c is a highly conserved (have undergone very little changes) protein that in found in many different species of organismsmsuch as plants, animals, and many unicellular organisms. Cytochrome c is made up of about 104 amino acids linked together by peptide bonds. Being a small-sized molecule (molecular weight about 12,000 daltons) also makes it easier for evolutionary studies to be conducted on it.

Organisms that are most closely related have the most similarity in the amino acid sequence of the cytochrome c molecule. The amino acid sequences in cytochrome c molecule present in organisms is as a result of the information in their DNA.Thus, sections of DNA are more similar in more closely related organisms.

PLEASE HELP ME!!!!
IT IS FOR BIOLOGY!!!

Answers

Answer:

B.

Explanation:

If the fish population is decreasing, then there will be a loss in biodiversity, then causing a problem in the ecosystem.

The answer to your question would be B. Hope this helped!

Can someone help me use speciation in a sentence

Answers

Answer:

A new ecosystem can lead to specitation.

-Xax

What are the two functions of the skeletal system? *
A. Provides stucture and protection
B. Sends and recièves signals throughout the body
C. Obtain nutrients and removes waste produced by the body
D. Regulates body temperature and protects the body from damage.


HELP PLEASE

Answers

Answer:

A. provide structure and protection

hope it helps

what do we call the actual gas or substance that causes air pollution?​

Answers

Answer:

The actual gas that causes air pollution is called a pollutant

Explanation:

Air pollution is the decrease in air quality. Air pollutants are the gases that cause air pollution.

What are pollutants?

Pollutants are harmful substances and particles that affect the quality of the environment and are man-made or natural. Fly ash from volcanic eruptions is a natural pollutant that deters the air quality.

The air pollutants like carbon monoxide, sulfur dioxide, and carbon dioxide released from the burning of fossil, coal, and vehicles alter the air quality and result in a change in weather conditions.

Therefore, the pollutants are the actual gases that cause air pollution.

Learn more about air pollution here:

https://brainly.com/question/16357973

#SPJ2

HELP! VERY EASY!! GIVING BRAINLIEST!!! 15 POINTS HURRY!!

Answers

Answer:

c is the correct answer

Explanation:

PLS HELP ASAP!!!!!
Think about a model that you can construct that could be used to show the difference in prokaryotic and eukaryotic cells. In 6 complete sentences(3 for each type of cell), explain the process you would use to construct the model and how you would use the model to explain the differences between prokaryotic and eukaryotic cells to your classmates.

Answers

Answer:

Prokaryotic cell-- no organelles, no membrane.

Eukaryotic cell -- Have organelles and membrane.

Explanation:

For the model of prokaryotic cell, we construct the model by removing organelles from the cell whereas in the eukaryotic cell, we add the organelles because in eukaryotic organisms, organelles are present in the cell that performs specific function. In the model of prokaryotic cell, we have to remove membrane around the nucleus whereas membrane president around the nucleus. In the prokaryotic cell, nucleus is not visible while on the other hand, in eukaryotic cell, the nucleus is visible and can be differentiate from other organelles.

This is a multiselect question! Select ALL of the following that correctly describe the
function of stem cells:

A)Cells that can differentiate into (become) any type of cell. Ex. blood, muscle, skin
cells.
B)Cells that can renew themselves continuously.
C) Cells that cannot specialize into different types of cells.
D) Cells that come from bone marrow or embryos.

Answers

Answer:

A, B, and D

Explanation:

Stem cells are special human cells that are able to develop into many different cell types. They commonly come from bone marrow, and from embryos.

PLEASE HELP ASAP
What negative consequence can occur when non-native species are introduced into an ecosystem?

Native species will prey on the invasive species.
The introduced species prey on native species.
The introduced species mate with native species, adding genetic variety.
The introduced species strengthen the ecosystem by adding diversity.

Answers

Answer:

The introduced species prey on native species.

Explanation:

This could cause the native species to go extinct, damaging the natural ecosystem.

View the diagram below and answer the question.
(the screenshot is the diagram)

Based on the diagram above, put the steps of the rock cycle in order beginning with the formation of magma and moving clockwise.

1. Weathering and erosion
2. Formation of sedimentary rock
3. Compaction and cementation
4. Heat and pressure
5. Formation of igneous rock
6. Formation of metamorphic rock

SOMEONE PLEASE PLSS HELP ME :((((((((((((

Answers

Here is a diagram, hope this helps :)

No matter what phase water is in, the water molecules stay the same; they just move differently.”
Explain why this evidence matters:

Answers

Answer:

Think about how the water cycle works etiher look in a tetbook or something

Explanation:

A student keeps a record of the phases of the moon for one month. On the first night of the student's observations, the full moon is visible in the sky. After the full moon, which of these phases will the student observe next?
F Waxing crescent moon
G Waxing gibbous moon
H Waning crescent moon
J Waning gibbous moon​

Answers

The answer is j :)))

suppose that the local temperate changed in favor of greater oxygen levels in the water. write a short paragraph to describe how both the population of the small fish species and the wading bird population would change in response to the new oxygen lovers over the next six months. then explain why these changes occur

Answers

Explanation:

suppose that the local temperate changed in favor of greater oxygen levels in the water. write a short paragraph to describe how both the population of the small fish species and the wading bird population would change in response to the new oxygen lovers over the next six months. then explain why these changes occur

What are the possible genotypes for blood type of the offspring of two parents, one with blood type O and one with blood type AB?

Answers

Answer:

The possible genotypes are A and B

Explanation:

Which statement about predator-prey populations is true?


A. The relationship between predator and prey populations keeps both populations in balance.

B. A decrease in the prey population is followed by an increase in the predator population.

C. An increase in the predator population is followed by an increase in the prey population.

D. two of the above.

Answers

Answer:

it is A

Explanation:

it A because it is a balance the predator eat the pray so it does not over populate

Earth is made up of
layers.

Answers

Answer:

multiple different layers and that's how we also have different types of rocks like sedimentary

Other Questions
Pilar and Ramesh left a 20% tip after having dinner. The amount of the tip was $5. Pilar's dinner cost $15. Which equation can you use to find x, the cost of Ramesh's dinner? The more diverse an ecosystem is A. the more threatened its populations areB. the more similar the species will beC. the more sustainable it isD. the fewer varieties of species are present the word coherence means ______A. to read clearlyB. to not understandC. to stick to somethingD.to be a free of thoughtans. C Find all missing angles in the diagram PLEASE HELP!!What action, finally, made King John pay attention to the barons? What is the name for the region in which Europe and Asia meet? Highlight two factors which shows that heat from the sun does reach the earth's surface by convection. Help ResaFind the volume of this object.Use 3 for aVolume of a CylinderV= r2hVolume of a ConeV= Arh37 cm!6cmVV ~ [?]cm3Enter I dont know how to do any of this help me pls The average adult horse needs two fith bale of hay each day to meet dietary requirements. A horse farm has 44 bales of hay. How many horses can be fed in one day with 44 bales of hay? The principal is interested in knowing whether the staff members in the entire school would prefer having meetings before school or after. The principal conducts a random sample from the following groups: All staff membersAll studentsAll the front office staffAll the male teachersWhich of the following would provide the best results for the survey? (3 points) aAll the male teachers bAll staff members cAll students dAll the front office staff Whats the answer to this?!!!!! Please help asap! (Middle school math 8 added to the product of 7 and x cubed b) Name three substances which can undergo sublimation and deposition respectively An informational pamphlet in a health clinic describes an interaction between body systems.5An ovum moves from an ovary into theuterine tube where its migration towardthe uterus is aided by the peristalticcontractions of the smooth tissues of theuterine tube's walls67Which statement identifies the body systems that are directly involved in the interactiondescribed and explains how they accomplish the interaction?00A The nervous system produces hormones that stimulate the ovum, and the circulatorysystem moves the ovum into the uterine tube.9B The circulatory system supplies the uterine wall with oxygenated blood, and theimmune system prevents damage to the ovum. -C The reproductive system produces the ovum, and the muscular system causes themigration of the ovum by peristaltic contractions.10D The excretory system expels the ovum from the ovary, and the nervous system causesthe contractions of the smooth tissues of the uterine wall. A 12 foot ladder is leaning against a wall and the foot of the ladder is 5 feet away from the wall. What is the angle between the ground and the ladder If I girl lost her Vcard at the age of 13, does that make her a bad person or no? Una libra pesa ms que una onza.O poundO literounceO tablespoon Why did President Kennedy support the overthrow of President Ngo Diem?