Secretory IgA is best described as _____.
A. an opsonizing antibody that facilitates uptake by M cells through Fc receptors
B. a monomeric IgA that neutralizes antigen effectively at mucosal surfaces
C. an inflammatory immunoglobulin that stimulates the chemotaxis of neutrophils into mucosal surfaces
D. a complement-activating immunoglobulin that causes destruction of invasive microflora through the membrane-attack complex
E. a non-inflammatory immunoglobulin that restricts the passage of antigens across mucosal surfaces

Answers

Answer 1

Answer:

d.

Explanation:

...


Related Questions

Select the correct answer. Which animal has a single-loop circulation? A. human B. fish C. housefly D. earthworm E. octopus

20 points help asap plz

Answers

Fish.

I hope this is right. ^^

Answer:

B. Fish

Hope this helps!

Explanation:

The area around the Sahara Desert is slowly changing into a dry region, similar to the desert. Which trait is most likely to be selected in the population of plants growing in this region?

Answers

Answer:

Researchers have found that mitochondria and chloroplasts in eukaryotic cells have their own dna. this dna is different from the dna in a eukaryotic cell's nucleus. chloroplasts and mitochondria use their own dna and ribosomes to make some organelle-specific proteinswhat statement is best supported by this information? a. mitochondria and chloroplasts could exist outside of modern cells.b. modern cells could exist without mitochondria and chloroplasts.c. early eukaryotic cells engulfed prokaryotic cells, which later became mitochondria and chloroplasts.d. early prokaryotic cells engulfed eukaryotic cells, which later became mitochondria and chloroplasts.

Explanation:

Which organism carries out autotrophic nutrition

Answers

Answer:

Autotrophs is the answer

Example : plants

Plants and some bacteria (e.g., cyanobacteria) carry out autotrophic nutrition, synthesizing their own organic molecules using light or inorganic substances.

Organisms that carry out autotrophic nutrition are capable of producing their own organic compounds and energy sources using inorganic substances. One example of an organism that performs autotrophic nutrition is plants. Plants possess specialized structures called chloroplasts that contain chlorophyll, a pigment responsible for capturing sunlight energy.

Through the process of photosynthesis, plants convert carbon dioxide and water into glucose, a form of stored energy. This energy is then used by the plant for growth, development, and other metabolic processes. Additionally, some bacteria and protists are also capable of autotrophic nutrition. These organisms utilize different mechanisms such as chemosynthesis or photosynthesis to synthesize their own organic compounds and derive energy from non-organic sources, such as inorganic chemicals or light, respectively.

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A decrease in metabolism without a similar, compensatory decrease in alveolar ventilation will have what effect on the systemic pH

Answers

Answer:

The PH will increase

Explanation:

Explain what are some examples of internal structures that allow organisms to survive in their environment?

Answers

Answer:

Plants and animals have many structures that help them survive. Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. ... Other structures are more common, like a heart.

Explanation:

Answer:

lungs, fat, skeletal system

Explanation:

What is the importance of sea-floor spreading?

Answers

Answer:

Significance. Seafloor spreading helps explain continental drift in the theory of plate tectonics. When oceanic plates diverge, tensional stress causes fractures to occur in the lithosphere.

Explanation:

PLS HELP QUICK

A closed, rigid container with a given mass of helium gas is heated until the temperature is doubled.
Which of the following statements is TRUE?
A
The pressure of the gas is halved, because temperature and pressure is inversely related
B
The pressure of the gas also doubles, because temperature and pressure are directly related
C
The pressure of the gas is unchanged, because helium gas is lighter than the air outside the container.
D
The pressure of the gas is unchanged, because there is no relationship between temperature and pressure.

Answers

Answer:

i think the answer is B

Explanation:

what organelle processes and sorts proteins to be shipped

Answers

Answer: The Golgi apparatus

Explanation: The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.

The organelle that processes and sorts proteins to be shipped is the Golgi apparatus. The Golgi apparatus is a stack of flattened sacs that is located near the nucleus of the cell.

It is responsible for processing and sorting proteins that have been made by the endoplasmic reticulum. The Golgi apparatus modifies proteins, packages them, and then ships them to their final destinations.

The Golgi apparatus has three main functions:

Modification: The Golgi apparatus modifies proteins by adding sugars, phosphates, and other molecules to them. This modification changes the properties of the proteins and makes them more functional.

Sorting: The Golgi apparatus sorts proteins into different vesicles. These vesicles are then transported to different parts of the cell, where the proteins are used.

Shipping: The Golgi apparatus ships proteins to different parts of the cell by fusing the vesicles with the cell membrane.

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You’re pretty Without (c)






You are du(m)b

Answers

Please need more information for me to help you with this. Thank you
You meant (I am Dump)? <3

Fermentation occurs in the
presence of ATP
absence of ATP
presence of oxygen
absence of oxygen

Answers

Answer:

Fermentation occurs in the absence of oxygen.

how is cell division normally controlled or regulated

Answers

Answer:

A variety of genes are involved in the control of cell growth and division. ... Tight regulation of this process ensures that a dividing cell's DNA is copied properly, any errors in the DNA are repaired, and each daughter cell receives a full set of chromosomes.

Explanation:

Mark me brainly please.

What is fertilizer?
Outside matter added to the ground to help plants grow
Oxygen and water added to the ground
Inorganic matter
Nitrogen-fixing bacteria in the ground

Answers

Answer: 3

Explanation:

Nitrogen, the most abundant element in our atmosphere, is crucial to life. Nitrogen is found in soils and plants, in the water we drink, and in the air we breathe. It is also essential to life: a key building block of DNA, which determines our genetics, is essential to plant growth, and therefore necessary for the food we grow. But as with everything, balance is key: too little nitrogen and plants cannot thrive, leading to low crop yields; but too much nitrogen can be toxic to plants, and can also harm our environment. Plants that do not have enough nitrogen become yellowish and do not grow well and can have smaller flowers and fruits. Farmers can add nitrogen fertilizer to produce better crops, but too much can hurt plants and animals, and pollute our aquatic systems. Understanding the Nitrogen Cycle—how nitrogen moves from the atmosphere to earth, through soils and back to the atmosphere in an endless Cycle—can help us grow healthy crops and protect our environment.

Answer:

Nitrogen fixing bacteria in the ground

Explanation:

Rabbits and sheep both graze on shrubs, grasses, and other plants. The sharp rise in the population of rabbits in a region may result in a shortage of plants for sheep to graze upon.

This relationship between sheep and rabbits is an example of _______.
A.
parasitism
B.
predation
C.
commensalism
D.
competition

Answers

The answer is D) competition.

We can see from the problem that the two animals are competing with one another. As the number of rabbits increases, the competition between the food source increases. This is why predators are important for the environment, as the level out the playing field for both animals.

I hope this helps! :)

What is the science in which earthquakes are studied called?

A. Plate Tectonics
B. Earthquake Science
C. Wave Science
D. Seismology

Answers

Answer:

D. Seismology

hope helpful <3

Answer:

D. Seismology

Explanation:

Seismology is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies.

Hope this helps :)

In the triglyceride molecule shown below, what are the three molecules attached to the glycerole molecule?

Answers

Answer:

alcohol glycerol

Explanation:

Triglycerides are esters in which three molecules of one or more different fatty acids are linked to the alcohol glycerol; they are named according to the fatty acid components; e.g., tristearin contains three molecules of stearic acid, and oleodistearin, one of oleic acid and two of stearic acid.

Which of the following is not a function of the human skeletal system?
a. Fatty acid storage
b. Primary glycogen storage
c. Protection of organs
d. Calcium storage

Answers

D. I think answer colorectal

The picture shows a model of a cell.

Answers

It’s d I think I’m not sure

The expulsion of urine from the bladder is referred to as:

Answers

Answer:

Urination or micturition

Explanation:

What two elements make up the majority of the Earth's atmosphere?

Answers

Answer:

nitrogen and oxygen

Explanation:

Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions.

what is neuro immune dysfunction syndrome? can it be cured?

Answers

Answer:

it can be partially cured

Explanation:

its like cancer u can cure it to stop spreading kinda but you can still have a high high risk or getting it agaian and theres a process

Which of the following is NOT a muscle of the abdominal wall?

Answers

Answer:

d. Erector spinae

Explanation: is correct

It should be Executor spinae

After CO2 is produced by tissues, in what form is most of that carbon transported to the lungs for removal from the body

Answers

as dissolved HCO3 :)

7)
.......... and....
Are weak forces of attraction.

Answers

Answer:

inter molecular forces and van der wall forces are weak forces of attraction.

Explanation:

hope this helps :)

#followformore

I lived in Africa around 15 mya. I had bilophodont molars ad a frugivorous diet. I had some adaptations for terrestrial quadrupedalism. What fossil primate am I

Answers

Answer: Victoriapithecus

Explanation:

What can you do to avoid getting holes in your teeth?

Answers

Answer:

1. Regularly brush teeth

2. Keep away from excess sugary or acidic foods

3. Make sure to have lots of Vitamin D

Buzz bugs lay eggs that burrow into polar bear skin write any 2 adaptations which it can have (it’s urgent)

Answers

Answer: See explanation

Explanation: They could have cold resistances since they are being born in a cold climate.

please help me!!!
Oral groove in paramecium is situated on
a.Dorsal side
b.Lateral side
c.ventral side
d.none

Answers

Lateral side l think

If Adam and Eve were the only people on earth first ,then does that mean every one is like your 5,000th cousin?

Answers

Answer:been isolated for more than 1250 years (which would render the proposition false at a conservative rate of 4 generations per century)? Quite possibly. They don’t, for example, have any form of agriculture or even a means to make fire, and their language is unintelligible. Chances are you have no recent (a few hundred, generations at least) Sentinelese relatives.

Explanation:

yes because yeah and like obviously yeah

PLS HELP ASAP ILL GIVE BRAINLKEST

Answers

Answer: 50%
There’s a 25 percent it will be homogeneous dominant and homogeneous recessive, and a 50% chance it will be heterogeneous

What evidence of climate change on continents supports the theory of continental drift?

signs that glaciers existed in South Africa
similar coal fields on different continents
change in atmospheric temperature over time
same animal fossils found on different continents

Answers

Answer:

A

Explanation:

Edge2022

The evidence of climate change on continents that supports the theory of continental drift is similar coal fields on different continents. Hence option B is correct.

What is continental drift theory?

The theory of continental drift suggests that the Earth's continents were once joined together in a single landmass called Pangaea, which began to break apart around 200 million years ago.

This idea was first proposed by German scientist Alfred Wegener in the early 20th century, who noticed the striking similarities between the coastlines of Africa and South America.

Coal is formed from the remains of plants that lived millions of years ago, and its distribution can provide clues about how continents were once connected.

Coal fields found on different continents that match in age and composition indicate that the continents were once joined together in a larger landmass.

This supports the theory of continental drift, which states that the continents were once part of a single supercontinent that later broke apart and drifted into their present positions.

This evidence suggests that coal-forming swamps once existed in locations that are now separated by oceans and that these locations were once connected.

Hence option B similar coal fields on different continents is correct.

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