what type of white blood cell is activate memory cells ?

Answers

Answer 1

Answer:

Memory B lymphocytes.

Explanation:

Bm lymphocytes are cells involved in the secondary innate humoral immune response. They're also, like other B cells, produce antibodies after the first exposure with an antigen and then produce large amounts of antibodies shortly after another exposure to the same antigen.

Plz like and Brainly :D


Related Questions

water is more dense than cooking oil

Answers

Answer:

True

Explanation:

Water is more dense than cooking oil

Answer:

water more dense than cooking oil

Explanation:

water molecules are packed more closely together than the long molecules that make up oil, the oxygen atoms in water are also smaller and heavier then the  carbon atoms in oil.

Hope this helps

Which of the following situations would most likely lead to a stable population size?

Answers

Answer:A

Explanation:

The answer should be between A or C but I would choose A

Responda con verdadero (V) o falso (F), según corresponda. En caso de falso, justifique su respuesta. Todas las células poseen pared celular Las células procariotas se originaron hace 1.500 millones de años aproximadamente_____ Los centriolos son organelas cilíndricas, formadas por proteínas, que intervienen en la división celular____ El ADN determina las características de un organismo____ En las mitocondrias se produce la digestión celular_____ En la definición de célula, la palabra estructural, hace referencia a cómo funciona la célula_____ La palabra Eucariota quiere decir "verdadero núcleo"____

Answers

Answer:

Falso

Falso.

Cierto

Cierto

Falso

Falso

Cierto.

Explicación:

Todas las células no tenían pared celular. Sabemos que la célula animal es un tipo de célula que solo tiene membrana celular. Las células procariotas se originaron hace aproximadamente 3,5 mil millones de años. Los centríolos son orgánulos cilíndricos, formados por proteínas, que contribuyen en la división celular. El ADN determina las características de un organismo porque el ADN tiene toda la información sobre los organismos. La digestión celular no ocurrió en las mitocondrias. El lugar de la digestión celular son los lisosomas. En la definición de celda, la palabra estructural, se refiere a la composición y forma de la celda. La palabra eucariota significa "núcleo verdadero" y núcleo verdadero significa que la membrana rodea al núcleo.

PLS PLS PLS HHELLPP MEEE

Answers

To be perfectly honest, I'm not sure what problem 32 is asking. It seems like there's set up to a question, but the actual question itself is missing.

=============================================

For problem 33, we divide the tape's distance by its time. I'm assuming that problem 33 is using the set up info from problem 32.

Recall that

distance = rate*time

we can rearrange things to say

rate = distance/time

So that's why we divide distance over time. The tape's length is effectively the distance, more or less. Imagine that one marker on the tape travels from one end of the reel to the other. It would have to travel the length of the tape when the full tape duration elapses.

----------

So,

rate = distance/time

rate = (260 meters)/(180 seconds)

rate = (260/180) meters per second

rate = 1.44 meters per second, which is approximate

I'm rounding to 3 sig figs.

If a damaged cell is found, or produced, during the cell cycle, then that cell will undergo
O A. Division
B. Apoptosis
C. Growth
D. DNA synthesis

Answers

Answer:

D

Explanation:

DNA synthesis

If the damage is irreparable, the cell may undergo apoptosis, or programmed cell death 2. This self-destruction mechanism ensures that damaged DNA is not passed on to daughter cells and is important in preventing cancer.

A pair of butterflies reproduces and has one thousand offspring. All one thousand of the offspring have the alleles Aa. What is the most likely combination of alleles (genotype) for each parent? Explain your answer.

Answers

Answer:

It is expected that each parent is homo-zygous for each trait (i.e., one parent has genotype AA and the other parent has genotype aa)

Explanation:

An F1 hybrid is the first filial generation of the progeny of distinctly different parental types. In this case, it is expected that each parent is homo-zygous for each trait, thereby 100% of all offspring will have genotype Aa (i.e., parental cross: AA x aa >> F1 = 100% Aa). On the other hand, in a cross where one parent is heterozygous for the trait (Aa) and the other parent is homo-zygous (either AA or aa), only 50% of all offspring will have genotype Aa.

1. Compare gaseous biogeochemical cycle and sedimentary biogeochemical cycle.​

Answers

Answer:

Gaseous cycles include those of nitrogen, oxygen, carbon, and water; sedimentary cycles include those of iron, calcium, phosphorus, and other more earthbound elements. In a sedimentary cycle elements move from land to water to sediment. Main reservoirs are the soil and sedimentary rocks.

I will give Brainliest for the Best Answer!
As hominids evolved, their eyes increased in size and became more forward facing. Which of the following can be inferred from this observation?

A. Hominids became more dependent on vision over time and less so on their other senses.
B. Hominid depth perception decreased, and eye size increased to compensate.
C. Hominid brains increased in size, which required their sensory organs to increase in size as well.
D. Hominids were less likely to sustain injuries when their eyes faced the direction of their motion.

Answers

I think

A is the correct answer.

OC (5) How do you know that the gas produced during fermentation is carbon dioxide (2)​

Answers

Explanation:

everything can be found in the picture

PLEASE HELP!!!
24) is it possible to know the genotypes of the three children in generation 111?
should their shapes be shaded? explain your answer to both questions.

Answers

Answer:

The genotype of all children in generation III is Hh. as H comes from dad and h comes from the mother for every case.

yes, their figures should be shaded.

reason :-

The dominant allele Fort this disease is shown by H whereas the recessive trait shown by h.

each offspring in generation III has the genotype Hh

and the presence of one dominant allele is enough to cause the disease.

all children in generation 3 suffer from the disease and so their figures should be shaded

I am sorry I just need points I am sorry

Question 7 of 25
Tropical rain forests support more species per unit area than any other
terrestrial ecosystem. What role do rain forests play in the health of the
biosphere?
A. Their colorful birds attract many tourists.
B. Their productive organisms quickly recycle nutrients.
Ο Ο Ο
C. They breed germs in pooling rainwater.
D. They keep plants from overtaking the planet.
SUBMIT

Answers

They breed germs in pooling rainwater . I hope this is the correct answer

Answer:

B. Their productive organisms quickly recycle nutrients

Explanation:

The first law of thermodynamics states that ___.

when a process converts energy from one form to another, some energy converts into heat, an unusable form of energy
energy can neither be created nor destroyed, but it can change from one form to another
most energy in ecosystems comes from the Sun
energy flows through ecosystems without being recycled

Answers

The first law of thermodynamics states that -

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b. energy can neither be created nor destroyed, but it can change from one form to another.

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. Revisa las etiquetas de los alimentos que tengas en tu casa para ver si hay alguno vencido. ¿Qué le recomendarías a tu familia? ¿Por qué?

Answers

Answer:

Para comer alimentos sanos y frescos.

Explicación:

Recomiendo a mi familia los alimentos que aún no están vencidos o que son frescos porque los alimentos frescos hacen que nuestra condición de salud sea buena en comparación con los alimentos vencidos. Hay un crecimiento de patógenos como bacterias, hongos, etc.en los alimentos que los hacen dañinos para las personas y causan intoxicación alimentaria en las personas que los consumen, por eso tenemos que ver las etiquetas presentes en los alimentos para verificar su condiciones.

Which is a method that scientist used to determine the composition of earths layers

Answers

Answer:

Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers.

Explanation: GOOD LUCK

Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers

This sea anemone and this ctenophora both have tentacles, which are body structures that help them catch food. However, sea anemone tentacles are short and can sting, while ctenophore tentacles are long for grabbing and cannot sting. What most likely explains why both species have tentacles and why the tentacles are different

Answers

Answer: Sea anemone and ctenophore both inherited tentacles from a shared ancestor population, but this population separated into different environments. In each environment, different types of tentacles evolved, which helped the populations survive.

Explanation:

most likely explains why both species have tentacles and why the tentacles are different is because sea anemone and ctenophore both inherited tentacles from a shared ancestor,

Then, this population separated into different environments and there was tye evolvement of different types of tentacles evolved, which therefore helped the populations survive.

Metabolic rate is _____. See Concept 40.4 (Page) View Available Hint(s) Metabolic rate is _____. See Concept 40.4 (Page) determined when the organism is vigorously exercising after consuming a fatty meal the total amount of energy an animal uses in a unit of time typically higher in an ectothermic animal than in an endothermic one the amount of heat gained by an animal in a unit of time directly proportional to body size

Answers

Answer:

The correct answer is ''the total amount of energy an animal uses in a unit of time''

Explanation:

The general metabolism or metabolic requirements can be defined as the energy demands that an organism requires for the set of biochemical reactions and physicochemical processes that occur in its cells. This set of reactions allows living beings to grow, reproduce, keep their physical structures in order and respond to external stimuli, among other things. Basal metabolism or Metabolic Rate (BMR) refers to the rate of energy expenditure (the amount of energy [expressed in kilocalories or megajoules (MJ)]) per unit of time that is spent when endothermic animals are in physical rest full. In other words, it is the amount of heat (expressed in calories) that is generated in one hour by an endothermic animal kept at rest. Also, it can be expressed as kilocalories per hour or per kilogram of weight.

What type of respiration requires oxygen?

a. Aerobic
b. Anaerobic

pls help

Answers

Answer:

Aerobic respiration

Explanation:

aerobic respirationType of cellular respiration that requires oxygen.

answer: aerobic

explaination: aerobic = air

Jules does not like when Hayden spends time with family. Jules thinks Hayden
should want to spend all free time with him. Hayden has tried to explain how
important family is and asked him to understand. Jules still gets upset every time
Hayden does things with family. This should be a red flag; the relationship might
be abusive. *
True or false?

Answers

Answer:

True

Explanation:

Jules shouldn't get upset with Hayden, and should know boundaries.

the answer is True hope I helped!!

Which of the following best describes a population?

Answers

Answer:

C

Explanation:

Population is the number of simular species in the area, so the land and fish don't count.

C because the population is everything but the fish and the land

Which statement best explains how sewage systems help fight the spread of disease?A.They carry antibiotics that kill pathogens in the air.B.They add chlorine to drinking water before it is transported to homes.C.They kill the animals that spread pathogenic bacteria.D.They carry human waste to treatment facilities away from cities.

Answers

Answer:

D.They carry human waste to treatment facilities away from cities.

Explanation:

Sewage system is a collection of systems that carries sewage (human waste) from the point it was produced to a place where it'll be treated or recycled.

Since sewage is moved via the use of sewage system, it helps to fight the spread of disease by carrying human waste (sewage) to treatment facilities away from cities.

A reptile's body temperature is always the same as that of its surroundings because...

Answers

Because they are cold blooded they cannot control their body temperature, therefore their body temperature is always the same as their surroundings.

(b) Explain clearly how the circulatory system and the respiratory system in the human body work together. ​

Answers

Answer:

The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.

Explanation:

Hope this is helpful.

Which is an endocrine function?

Answers

Answer:

Explanation:

The endocrine system is a messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs. In vertebrates, the hypothalamus is the neural control center for all endocrine systems. In humans, the major endocrine glands are the thyroid gland and the adrenal glands. The study of the endocrine system and its disorders is known as endocrinology.

Cellular Respiration requires the use of __________ which are located on the _________.

Answers

Answer:

Cellular respiration requires the use of glucose which are located on the mitochondria.

Explanation: Hope this helps :)

This is the question I need help with.

Answers

Answer:

where is the question???????????

Where is the question

CLAY PARTICLES DO NOT SETTLE DOWN EASILY DURING THE PROCESS OF SEDIMENTATION. CAN YOU SUGGEST ONE METHOD TO MAKE THEM HEAVIER AND THUS HELP IN SEDIMENTATION? Name the method and the chemical

Answers

Answer:

Coagulation by additionmof chemicals such as aluminium sulfate also known as alum will help in sedimentation of clay particles.

Explanation:

Clay particles are very small particles found suspended water obtained from streams and rivers for township supply. They have weak electrical negative charges on their surfaces which when they approach one another, they repel each other thus making it almost impossible for clay particles to settle out of suspension.

Because of this, prior to the sedimentation step, a chemical process known as coagulation is required. In this process, certain chemicals called coagulants, are added to the water to bring the difficult-to-settle suspended particles such as clay particles together into larger, heavier masses of solids called flocs. They do these by interfering with the repulsive forces between the particles, thus allowing them to clump together into flocs. The most commonly used coagulant used for water purification is aluminium sulfate or alum. Other chemicals that are also employed in coagulation include ferric sulfate and sodium aluminate.

On Earth, water is found naturally in all of these states EXCEPT ____
A. Gas
B. Liquid
C. Solid
D. Plasma

Answers

Answer is D.Plasma!!!!!!

On Earth, water is found naturally in all of these states except plasma. So, the correct option is D.

What is Water?

With the chemical formula H2O, water is a colorless, transparent, flavorless, and odorless chemical molecule. It is a straightforward molecule bound together by covalent connections and made up of two hydrogen atoms and one oxygen atom.

All known forms of life depend on water, which is the most plentiful material on the surface of the planet. Under typical temperature and pressure conditions, it is capable of existing in all three of the physical states of solid, liquid, and gas.

Water is an essential component of many natural and industrial processes since it is a universal solvent and can dissolve a wide variety of compounds. It is an essential part of the Earth's water cycle, and it's crucial for maintaining ecosystems and controlling temperature. On Earth, water is found naturally in all of the states such as gas, liquid and solid.

Therefore, the correct option is D.

Learn more about Water, here:

https://brainly.com/question/28465561

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What describes a country with less industry and whose citizens have low average incomes.

Answers

third world countries

Explanation:

are the results of countries with low exports and high imports

Third world countries work, but developing countries works as well depending on what answer you need.

Developing works because the low income and socio-economic status comes from them not being stable overall a weak infrastructure unlike second and first world countries, it’ll be a while before they catch up.


A goal taking which of these lengths of time to achieve is most likely to be a
short-term goal?
A. 25 weeks
B. 25 decades
C. 25 years
D. 25 months

Answers

Answer:

A. 25 weeks

Explanation:

It's the shortest amount of time.

Hope this helps! :)

Answer:

25 weeks

Explanation:

25 minutes would probably be a short term goal. If it takes someone only 25 minutes to do, that would be a pretty short and easy goal. It COULD be 25 weeks.

Which of the following is NOT essential for protein synthesis? *
Oribosomes
O
tRNA
O
mRNA
carbohydrates

Answers

Answer:

carbohydrates

Explanation:

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please help mee please. I need correct answer () which functions have a range of.. SELECT MORE THAN 1 True of false management is the execution of a number of integrated and related tasks for the achievement educative goals What's 90cm as a fraction of 2.4m in its simplest form Help me please (NO LINKS) Solve the system of equations by graphing on a separate sheet of paper. Write your solutions as ordered pairs from least to greatest with respect to the x-coordinate.y=x2+6x+4 y=x A 12 pack of lemonade costs $5.40.how much do each lemonade costs? 1. An area where actor and actresses perform? in circle T with m angle STU=50 and ST=3 units, find the length of arc SU. Round to the nearest hundredth. Are the two triangles similar? How do you know? Explain your reasoning thoroughly. if f(x)=3^x+10x and g(x)=5x-3, find (f-g)(x) Yes i give brainliest When people are said to be insane, this means thatSelect one:a. psychologists have compared their behaviors to the characteristics ofindividuals with disorders and found a strong correlationb. a psychiatrist has determined that they are suffering from one of thepsychological disorders, as described in the DSMc. a legal determination has been made that they are unaware of theconsequences of their actions and are unable to control their behaviord. a diagnosis of schizophrenia has been made, either by a psychologist orby a psychiatrist specializing in the treatment of the insane Read the passage from a speech by President Barack Obama.Good afternoon. Mr. Secretary General; Your Excellencies, we are here because, right now, in crowded camps and cities around the world, there are familiesfrom Darfur in Chad, Palestinians in Lebanon, Afghans in Pakistan, Colombians in Ecuadorwhove endured yearsin some cases, decadesas refugees, surviving on rations and aid, and who dream of someday, somehow, having a home of their own.Were here because, right now, there are young girls . . . like my daughters . . . who are just as precious and just as giftedlike the 16-year-old refugee from Myanmar that I met in Malaysiawhove suffered unspeakable abuse . . . girls who pray at night that someone might rescue them from their torment.What evidence does President Obama use to support the claim that the child-refugee problem needs to be addressed and fixed? Select two options.Obama uses empirical evidence, since he names the specific countries where refugees live.Obama uses empirical evidence, since he uses a verifiable source in the refugee from Myanmar.Obama uses anecdotal evidence, when he compares the young refugees to his own gifted daughters.Obama uses logical evidence, since it is common sense that most young girls are gifted.Obama uses anecdotal evidence, when he shares stories about his visits to war-torn countries.Obama uses anecdotal evidence, when he shares a personal experience he has had with a refugee Question 10 (4 points) SavedAll of the following were examples of negative American responses to immigration inthe late 1800s EXCEPT:1) Chinese Exclusion Act2) Nativistallies3) Church vandalism4) Settlement Houses Can yall please help me which equation has an infinite number (Right angle) Trigonometry please help! Which of the following options is true for aerobic and anaerobic respiration?* The answer is between C and D when do babies generally develop full sensitivity for taste. HURRYY!!! which exponential function is represented by the graph