Question 1(Multiple Choice Worth 2 points)(05.05 MC)How does the human immune system initially respond to a pathogen?

Answers

Answer 1

Immediately, the pathogen has been recognized:

Macrophages acts as the first line of defence by engulfing pathogens identified by antigens which will now present the antibody shape to a helper T cell.

The Helper T cells produce a signal to plasma and Memory B cells to yield antibodies that attach to the antigens. The cytotoxic cells that leads to cell death are activated by the helper T cells.

Antibodies helps to immobilize pathogen for macrophage to feed on.

if the pathogen comes back a 2nd time the memory cells helps in quick and efficient recovery by producing the specific B and T cells for the antigen.


Related Questions

which rna type is the most abundant in mammalian cells?

Answers

ribosomal ribonucleic acid

Which statement describes a positive effect of selective breeding?

Answers

Answer:

desirable traits are passed down into future generations

Explanation:

Which disinfection method for wastewater is not effective in water with high turbidity?

Chlorination
Nutrient removal
Ozonation
UV light

Answers

Answer:

UV light

Explanation:



what’s the correct choice?


help pls


bio


Answers

Answer:

ig (to the genotype of an individual with a recessive phenotype) but in general its done to find the genotype of individual and check whether they are dominant or recessive

Answer:

i think first option please follow me we should help each other

baby jamison was born with . this is a genetic disorder in which the lungs are clogged with large quantities of abnormally thick mucus.

Answers

Baby jamison was born with Cystic Fibrosis (CF)

The question is in the picture

Answers

Answer:

protein specifically an amino acid

how many elements are in CH4how many elements are in CH4 ​

Answers

Answer:

Two.

Explanation:

Carbon and Hydrogen.

What is true about the motion of chromosomes during binary fission?

Chromosomes start being copied at the center of the cell. They move to the ends as replication
Occurs.

Chromosomes start being copied at the center of the cell. They remain at the center throughout the
replication process.

Chromosomes start being copied at a corner of the cell. The newly produced copy moves to the other
end

Answers

Answer:

Chromosomes start being copied at the center of the cell. They move to the ends as replication

Occurs.

Explanation:

River deltas are?

formed by deposition
created by seafloor spreading caused by the movement of tectonic plates
areas of infertile, rocky soil

Answers

They are formed by desposition

Which argument supports that humans and other animals depend on plants for survival?

Answers

Answer:

Animals are totally dependent on plants. First of all plants produce oxygen which is vital for life on earth. Then, for many animals plants are their basic food, or if plants don’t make up 100 % of their diet, plants are nevertheless essential in their food supply. Plants are also used by animals (and men) as material for building nests (and or homes). Carnivorous animals eat animals which are herbivorous, and without plants they wouldn’t survive, so the carnivors would quickly disappear. Plants are also vital in the maintaining of the climate and without plants the earth’s surface would be subject to erosion. So, to resume, life on earth wouldn’t be possible without plants.

Why do you think the narrator used the term “successful mistakes” for his chromosomes?

Answers

His chromosomes were successful because they ultimately ended up forming a full human being.

What is the smallest family in the phylum Aves?
one who gets it right get brianlyness! (if i can find the button..)

Answers

Answer:

birds

Explanation:

All the websites I've found confirm this.

:)

what happens when air masses of different temperatures meet?

Answers

Answer: When two air masses meet together, the boundary between the two is called a weather front. At a front, the two air masses have different densities, based on temperature, and do not easily mix. ... Winds are common at a front. The greater the temperature difference between the two air masses, the stronger the winds will be.

Explanation:

during which phase do the chromosomes make copies of themselves so that there are two of each one?

Answers

Answer:

The beginning and majority of the time is known as Interphase. Interphase is 80% of the total cycle and is where the cell does most of the work in replicating organelles, chromosomes, and preparing to undergo Mitosis which is the actual splitting process where one cell becomes two. During Interphase there are 3 major steps, G1, S, and the G2 phase.

Explanation:

¿De qué manera comprobarías el funcionamiento del filtrador de agua?

Answers

Answer:

La forma más eficaz de determinar si su filtro de agua funciona correctamente es analizar el agua antes y después de que pase por el filtro.

an antibiotic made by microorganisms and modified by chemists is called

Answers

Explanation:

An antibiotic made by microorganisms and modified by chemists is called. semi-synthetic. The antimicrobials produced by some molds and bacteria are generally called. antibiotics

can anyone help please,question on the pictute

Answers

Answer:

A. In water it is stabilizing the amount of water coming in and out of the cell.

   In the sugar solution, it is filled with the sugar solution.

B. Transpiration

PLS MARK BRAINLIEST!!! VERY DESPERATE!

Disease or disorder that affects the immune system

Answers

Answer:

If you have an autoimmune disease, your immune system attacks healthy cells in your body by mistake. Other immune system problems happen when your immune system does not work correctly. These problems include immunodeficiency diseases. If you have an immunodeficiency disease, you get sick more often.

Explanation:

PLEASE ANSWER THIS!!

Answers

Answer:

C

Explanation:

How does Dinosaur and dragon go into extinction​

Answers

Answer:

they were hit by a astroid

Explanation:

Joyce and Linda are identical twins who are 50 years old and enjoy exercising daily. Joyce avoids eating any dairy or animal products and eats granola made with canola oil for breakfast. Linda prefers rich foods, and eats bacon, eggs, and buttered toast each morning. Which statement describes a logical inference that can be made from the provided information?

Answers

Answer:

The two sisters though identical have some differences while the former avoids fatty meals and cholesterol the latter enjoys fatty meals in contrast with the statement they both exercise daily which burns out the fat

Which of the following is required for the sodium-potassium pump to transport potassium ions into an animal cell?

High intracellular concentrations of potassium
High intracellular concentrations of sodium
Low intracellular concentrations of potassium
Energy from ATP

Answers

Answer: Energy from ATP

Explanation:

Why is ammonification an important process? (4 points)

Answers

It is important because it provides nitrogen to the soil in a manner that lets plants use nitrogen and pass it through the food chain.

which of the following is not caused by the electromagnetic force?​

Answers

Answer:

Beta rays are not electromagnetic waves.

Explanation:

hope this helps you if it does plz mark brainliest

PLEASE HELP ASAP!!
Adjust the length. How does the length of a pendulum affect its period?

Answers

Answer:

The longer the length of string, the farther the pendulum falls and therefore, the longer the period

Explanation:

which amino acid is chemically modified to form a key component of the connective tissue protein collagen?

Answers

Answer:

glycine and proline

Explanation:

First, a three-dimensional stranded structure is assembled, with the amino acids glycine and proline as its principal components. This is not yet collagen but its precursor, procollagen. Procollagen is then modified by the addition of hydroxyl groups to the amino acids proline and lysine.

boom.

Simple cuboidal epithelial tissue is often found lining ducts of glands
A. True
B. False

Answers

Answer:

true

Explanation:

Simple cuboidal epithelia are observed in the lining of the kidney tubules and in the ducts of glands. In simple columnar epithelium, the nucleus of the tall column-like cells tends to be elongated and located in the basal end of the cells.

the answer is true :)

How will you survive without land

Answers

Answer:

get coconut in tree make a boat with wood and your ready ro getbout

Review this scenario. Rainbow trout are a freshwater fish native to streams and lakes along the western coast of North America. While studying streams in the eastern United States, an ecologist noticed that rainbow trout were abundant in the ecosystem, but other native species of fish were almost entirely missing. She also observed lower populations of macroinvertebrates. The ecologist wondered why there were so few native fish species and macroinvertebrates. By reading ecological reports of the area, the scientist learned that rainbow trout had been introduced to the streams for sport fishers to catch. Initially, 100 fish had been introduced, but the ecologist conducted a field survey and estimated that over 1,000 rainbow trout now lived in the streams. She also read from other studies that rainbow trout feed primarily on macroinvertebrates. Which question most closely relates to the ecologist's observations and the collected scientific data on river ecosystems? Do the native fish species have a disease? Are rainbow trout displacing native species by outcompeting them for food? Did pollution kill off the native fish species? Why are there so many rainbow trout in the streams?

Answers

The question that best relates to the ecologist's observations and the scientific data collected on river ecosystems is:

Is rainbow trout crowding out native species by competing with them for food?

The previous question that the ecologist very possibly must ask is due to the overabundance of rainbow trout and the very low number of native species.

In order for rainbow trout to adapt and reproduce quickly, it has had to feed on macroinvertebrate species, affecting the native fauna of this ecosystem and causing the displacement of other native species and even death due to lack of food.

You can find more information in this link:

https://brainly.com/question/9718639

the vacuoles in plant cells are different from the vacuoles in animal cells because

Answers

Answer:

Explanation:

The vacuole in a plant cell is differerent from vacuoles in an animal cell because an animal cell has multiple small vacuoles while a plant cell has one large central vacuole that mainly just stores water and nutrients.

Other Questions
can anyone help me with this, with a full explanation ?? thank you What type of figurative language is the hot sun peaked out of the clouds what is the primary cause of failure for strategic initiatives? do you think that wealthy people also lived this way ? explain your thinking . How does the author explain that aboriginal tribes in Australia share some of the same beliefs?They all have sets of sisters who are gods and give names to animals and plants.They all tell of a Dreamtime in which the spirits created the earth.They all have stories about how floods destroyed the world.They all have stories of a sun goddess who lights the world with a torch. Letter C shows that some of the heat rising from the earth's surface is trapped by gases in the atmosphere and reflected back to earth. This is known as what?Question 3 options:Coriolis EffectSolar FlaresGreen House EffectWindshield Effect Why were members of the Westboro Baptist Church not charged with hate speech? Which of the following statements concerning the human genome are true? Check all that apply. The human genome contains approximately 23,000 nucleotides. The human genome contains approximately 23,000 genes. All human genomes have the same set of genes. All human genomes are slightly different from one another. factorise B square minus 25 what is the technique for measuring the heat change for a reaction called? I really need help with this. Thank you. Water is a polar molecule because Help!! ASAPIs relation below a function? If it is a function, state its domain. {(0,3),(2,-3),(1,8),(2,3)}A. The relation is not a function.B. The relation is a function. The domain is {0,1,2}.C. The relation is a function. The domain is {-3,3,8}D. The relation is a function. The domain is {-3,0,1,2,3,8} How can you tell if a country's economy is growing?Its GDP decreases over time.Its GDP increases over time. show your solution need an answer, please need an answer, please.complete answer pls:( LANGUAGE IS PYTHON PLEASE HELP.Write a while loop that repeats while user_num 1. In each loop iteration, divide user_num by 2, then print user_num. Sample output with input: 2010.05.02.51.250.625 Why do patterns of earthquakes become deeper the farther the distance from a plate boundary? The list represents the number of carssold and the bonus received by thesalespeople of a car dealership.{(1, 50), (2, 50), (3, 100), (4, 150) help me due tonighttt employees make greater use of their skills and enjoy more opportunities for professional development in a organization.