it is the red bone marrow that produced anti bodies
The most accurate description of how antibodies are produced is B cells that differentiate to form plasma cells
Option (b ) is correct.
The most accurate description of how antibodies are produced is through B cells that differentiate to form plasma cells. B cells are a type of white blood cell that plays a crucial role in the adaptive immune response. When a B cell encounters an antigen (a foreign substance, such as a virus or bacteria), it recognizes and binds to it. This binding activates the B cell, leading to its differentiation into plasma cells.
Plasma cells are specialized B cells that secrete large amounts of antibodies, also known as immunoglobulins. These antibodies are specific to the antigen that triggered their production. Antibodies help neutralize or eliminate the antigen by binding to it and marking it for destruction by other components of the immune system.
Option a is incorrect because cytotoxic T cells are involved in directly attacking and killing infected cells, not producing antibodies.
Option c is incorrect because helper T cells play a role in activating B cells and other immune cells, but they do not directly produce antibodies.
Option d is incorrect because the red bone marrow is the site where various blood cells, including B cells, are produced, but it is not directly involved in antibody production.
Option e is incorrect because natural killer cells are a type of immune cell that is responsible for detecting and destroying infected or cancerous cells through a process called lysis. They are not involved in antibody production.
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Are mosses a direct ancestor of flowering plants?
Answer:
Mosses are not a direct ancestor of flowering plants
Explanation:
Ở người, khoang bụng và khoang ngực ngăn cách nhau bởi bộ phận nào ?
Answer:
heaven Bergan legern. von bean bones doses doe upside down pumpkin butt
In response to hemorrhage, there is A) peripheral vasodilation. B) increased parasympathetic stimulation of the heart. C) mobilization of the venous reserve. D) constriction of elastic arteries to maintain blood pressure. E) increased blood flow to the digestive system.
Answer:
Either B) increased parasympathetic stimulation of the heart. OR D) Constriction of elastic arteries to maintain blood pressure. I'm leaning more towards D) constriction of elastic arteries to maintain blood pressure.
In response to hemorrhage, there is peripheral vasodilation is either increased parasympathetic stimulation of the heart or Constriction of elastic arteries to maintain blood pressure. I'm leaning more towards constriction of elastic arteries to maintain blood pressure.
What is the effect of high blood pressure?
Heart attack has been the condition in which heart fails to pump the blood due to the blockage in the blood vessels and it has been results into the high pressure on the heart and the attack takes place.
In response to hemorrhage, there is peripheral vasodilation is either increased parasympathetic stimulation of the heart or Constriction of elastic arteries to maintain blood pressure.
The main reason for heart attack has high blood pressure and blockage in blood vessels of heart. After a heart attack many parts of heart such as volve and pacemaker stops working and sudden death may occur.
Therefore, In response to hemorrhage, there is peripheral vasodilation is either increased parasympathetic stimulation of the heart or Constriction of elastic arteries to maintain blood pressure. I'm leaning more towards constriction of elastic arteries to maintain blood pressure.
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2. Which is a synonym for a narrative conclusion?
the ending of a story
the setting and characters of a story
the beginning of a story
the conflict of a story
Answer:
The ending of a story
Explanation:
Conclusion usually means the end of a story
5 What are the ocean zones of a marine ecosystem, from most shallow to deepest?
A intertidal, neritic, bathyal, abyssal
B abyssal, neritic, intertidal, bathyal
C neritic, intertidal, bathyal, abyssal
Answer:
There
Explanation:
The ocean is divided into five zones: the epipelagic zone, or upper open ocean (surface to 650 feet deep); the mesopelagic zone, or middle open ocean (650-3,300 feet deep); the bathypelagic zone, or lower open ocean (3,300-13,000 feet deep); the abyssopelagic zone, or abyss (13,000-20,000 feet deep); and the ...
Answer: it’s a
Explanation:I am just joking i don’t know
Which of the following do NOT have membrane bound organelles?
A Prokaryotes
B Eukaryotes
C Both A and B
Answer:
Prokaryotes...........
Answer:
A
Explanation:
What is Evolution? best answer will get a brainliest!
Answer
Evolution is basically just the process in which different types of organisms have devoloped.
Easier way of saying it:
The gradual development of something
usually from something simple to something complex.
Have a great day :)
Answer:
Evolution is the gradual change of characteristics and traits, that occurs within a species, over many generations.
Explanation:
Due to natural selection, some genes of a species can be passed on to their offspring, to increase chances of survival. This is because these new traits are enabling, the organisms who have them, to survive longer then the ones who don't, thus allowing them to procreate and have more offspring, who share that same trait.
This process can occur over several generations, and in turn, can really change a species.
Hope this helps. :)
Which of the following are foreign substances to the body that generate an immune response?
Answer:
C. Antigens is correct
Explanation:
3. In the 1660s, Flemish physician Jan van Helmont grew a small willow tree in a pot of soil. He
added only water to the pot. At the end of five years, he found that the tree had gained 75
kilograms, but there was very little change in the mass of the soil. Van Helmont concluded that
the plant gained weight directly from the water. We now know that this conclusion is only
partially correct because, in addition to water, photosynthesis also requires
(1) oxygen from the atmosphere
(2) proteins from animal prey
(3) carbon dioxide from the atmosphere
(4) carbohydrates from the soil
The conclusion that can be drawn by Flemish physician Jan van Helmont is partially correct because, in addition to water, photosynthesis also requires carbon dioxide from the atmosphere. Thus, the correct option for this question is C.
What is Photosynthesis?Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The complete reaction of photosynthesis is as follows:
[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6O_2+6H_2O.[/tex]With the help of this reaction, it is identified that carbon dioxide and water act as reactants in photosynthesis while glucose and oxygen are the products. Hence, along with water, carbon dioxide must also be required in order to accomplish the process of photosynthesis.
Therefore, the correct option for this question is C.
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The graph below shows the approximate average annual ocean heat content from 1993 to 2020. It was created using data from NOAA. Line 1 represents ocean levels from the surface to 2,300 feet below ocean surface. Line 2 represents ocean levels from 2,300 feet to 6,560 feet below ocean surface. Line 3 represents ocean levels below 6,560 feet under the ocean surface. Graph shows the average annual ocean heat compared to the 1993 average represented as the 0 baseline from 1993 to 2020. Vertical axis shows ocean heat content measured in 10 to the 21 power joules. It starts at negative 60 and goes up to 180 in increments of 20. The horizontal axis shows years from 1995 to 2020 in multiples of 5 years. From 1995 to 2020, Line 1 starts at 20 and has an average growth of 7 vertical units per year. From 1995 to 2020, Line 2 starts at negative 20 and has an average growth of 4 vertical units per year. From 1995 to 2012, Line 3 starts at 0 and has an average growth of 1.3 vertical units per year. Data Source: © 2021 NOAA Which statement describes the approximate average trend of ocean heat content between 2,300 and 6,560 feet under the ocean during this time period? An increase of about 130 x 1021 joules An increase of about 80 x 1021 joules A decrease of about 20 x 1021 joules A decrease of about 80 x 1021 joules
The heat content change between 1993 and 2020 is lowest in the ocean levels below 6,560 feet.
The statement that describes the approximate average trend of ocean heat content between 2,300 and 6,560 feet is; An increase of about 80 × 10²¹ joulesReasons:
The graph that represent the heat content levels of the ocean at 2,300 feet to 6,560 feet is line 2
From the graph, we have;
The ocean heat content in 1993 = -20 × 10²¹ joules
The ocean heat content in 2020 = 60 × 10²¹ joules
The increase in heat content between 1993 and 2020 is therefore;
ΔH = 60 × 10²¹ - (-20) × 10²¹ = (60 - (-20)) × 10²¹ = (60 + 20) × 10²¹ = 80 × 10²¹
The increase in heat content between 1993 and 2020 = 80 × 10²¹ joules
The correct option is; An increase of about 80 × 10²¹ joules.
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If a haploid cell has 16 chromosomes in its nucleus, how many would be present in the diploid state? View Available Hint(s) for Part A 4 8 32 64
Answer:
If a haploid cell has 16 chromosomes in its nucleus, how many would be present in the diploid state? A. 4. B. 8. C. 32. D. 64. C.
Explanation:
If the haploid cell has 16 chromosomes in its nucleus, then it has 32 chromosomes in the diploid state. The option saying "32" is correct for this condition.
What is a chromosome?
The chromosomes are present in the nucleus of the eukaryotic cell, and their number varies from species to species. One species may get 4 chromosomes while others, like humans, have 46 chromosomes.
The haploid cells are formed by the process of meiosis, where the cell gets half of its genetic content from the parent cell. If the haploid cell gets 16 chromosomes, then the parent cell, which is the diploid cell, gets 32 chromosomes. In the parent cell, there are two copies of a gene, one from the paternal side and one from the maternal side. The same genetic content is transferred to the daughter cells during mitotic division.
Hence, as a haploid cell is formed with 16 chromosomes, the diploid cell has 32 chromosomes.
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What term would be applied to a regulatory condition that occurs when a protein is associated with a particular section of DNA and greatly reduces transcription
Answer:
negative control
Explanation:
explain why the number of bacteria is highest at zero
Explanation:
The number of bacteria was highest in zero metres because they are made up of very small size. This property help them to grow more and more at zero metres and they are found in large numbers.
The Products (molecules on the right side of a chemical equation) of Aerobic Cellular Respiration are __________.
Answer:
The products of aerobic cellular respiration are CO2, H20 (Water Vapour), and Energy.
C6H1206 + O2 ➔ CO2 + H20 + Energy
Glucose + Oxygen ➔ Carbon Dioxide + Water Vapour + Energy
Beetles from the family Dermestidae typically feed on skin and dried tissues in the advanced decay stage of decomposition.
True or false and pls explain
Answer:
True
Explanation:
Because the beetles feed of of the skin and dried tissues that are already dead and have been killed by other bacteria or things in the body.
What is the answer to this?
Answer:
I think it’s calcium carbonate
Hope this helps!
Answer: Calcium carbonate
Explain That is the answer
I didn't copy mgera23 so pls don't say I did
Why is visceral muscle also called smooth muscle?
Answer:
a. It lacks striated fibers.
Explanation: is correct/post protected
yeast have mitochondria and can perform cellular respiration. what would you expect to be consumed and produced during the process of cellular respiration in yeast?
In which order do the events of antidiuretic hormone (ADH) secretion stimulated by plasma osmolarity occur
The order in which the ADH stimulated by plasma osmolarity occurs is:
an increase in plasma osmolarity, activation of osmoreceptor, release of ADH, reabsorption of water.
The antidiuretic hormone (ADH) is responsible for the homeostatic valance and increase in blood's volume. The activation of this hormone and how it works is as follows:
There is a low concentration of water in the body, which decreases the extracellular fluid.The decrease in the extracellular fluid results in a reduction of the plasma osmolarity, in other words, the blood volume is reduced.As a consequence, the osmoreceptors in the hypothalamus, kidneys, and carotid detect the high concentration of solutes. The hypothalamus releases ADH.The hormone travels through the blood to the kidney. There, it stimulates the reabsorption of water and reduces urine production.The body is hydrated again.
To sum up, the body detects a high concentration of solutes due to a loss of water. Then it releases ADH; as a consequence, the kidneys reabsorb water till the osmolarity decreases.
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What evidence supports the idea that an evolutionary relationship exists between two hominid species?
Bone density of the species
Mitochondrial DNA of the species
Number of teeth of the species
Geographic location of the species
Answer:
Your answer will be Mitochondrial DNA of the species. I hope this helps.
Explanation:
The evidence that mitochondrial DNA of the species supports the idea that an evolutionary relationship exists between two hominid species. The correct option is B.
What is evolutionary relationship?Relationships formed through the worldwide process of evolution between two separate creatures are known as evolutionary relationships.
They are, in other words, the connections between two species that shared an ancestor.
A group of organisms' evolutionary relationships and histories are known as its phylogeny in science.
A phylogeny describes the relationships between creatures, including where they are assumed to have originated from, which species they are most closely related to, and other information.
Purple non-sulfur bacteria were permanently enslaved to create mitochondria.
Through the development of sophisticated protein-import machinery and the insertion of protein carriers for host energy extraction into their inner membranes, these endosymbionts developed into organelles.
Thus, the correct option is B.
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The process by which water and some solutes in the blood plasma pass from the glomerular capillaries into the capsular space is called glomerular __________.
Answer:
Glomerular Filtration
Explanation:
This is a process of bulk flow driven by the hydrostatic pressure of the blood. Small molecules pass rapidly through the filtration membrane, while large proteins and blood cellsare kept out of the capsular space. If the filtration membrane is damaged, proteins will leak through and end up in the urine. Hope this helps :)
Activation of muscarinic receptors will 1. cause skeletal muscle contraction 2. increase heart rate 3. causes secretion of digestive enzymes
Given what we know about muscarinic receptors, we can confirm that the activation of these receptors will result in an increase in heart rate.
Muscarinic receptors are also often referred to as acetylcholine receptors. These are membrane receptors that tend to form G protein-coupled complexes. Though the activation of these receptors will not increase the heart rate in a direct fashion, it will do so indirectly through its interaction with acetylcholine molecules.
Acetylcholine is a very common molecule in the human body. This molecule plays the role of a neurotransmitter, meaning its job is to send signals to other cells, like in this case muscle cells in the heart.
This organic chemical signals the heart muscles to contract at slower speeds, thus decreasing heart rate. The activation of Muscarinic receptors inhibits these Acetylcholine molecules, stopping their signal and causing the heart rate to increase.
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_______ generates seismic waves in a fault, resulting in an earthquake.
a. rupture in a fault
b. subduction at a converging plate boundary
c. buildup of lithotastic pressure
d. triangulation
Answer:
A. Rupture in a fault
Explanation: This answer is correct! :)
The correct option is A.
What are Seismic Waves?Seismic waves are caused by the sudden movement of materials within the Earth, such as slipping along a fault during an earthquake. Volcanic eruptions, explosions, landslides, avalanches, and even rushing rivers can also cause seismic waves.
What generates seismic waves in a fault resulting in an earthquake?As tectonic plates move past each other along fault zones, they sometimes get stuck. Pressure builds, and when the plates finally give and slip, energy is released as seismic waves, causing the ground to shake.
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Which vein carries blood from the digestive organs to the liver?
Answer:
d. Hepatic portal vein
Explanation: is in fact, correct
pls help i’ll give brainliest
What term is used to describe the premise that increased ventricular filling improves contractile force of the heart as a result of greater stretch of cardiac fibers
Frank – Starling law is used to describe the premise that increased ventricular filling improves contractile force of the heart as a result of greater stretch of cardiac fibers.
According to the Frank – Starling law, the more the heart muscle is stretched during filling, the greater the contractile force and the greater the amount of blood pumped into the aorta are, as well as the ejection pressure.
This is because there is a relationship between cardiac fiber length (equivalent to end-diastolic volume) and force of contraction (equivalent to stroke volume).When an extra amount of blood reaches the heart, the heart muscle stretches more and is able to contract with greater force.Therefore, we can conclude that Frank – Starling law is used to describe the premise that increased ventricular filling improves contractile force of the heart as a result of greater stretch of cardiac fibers.
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When the rain weather and erode rock what you spheres are interacting
Answer:
The atmosphere, hydrosphere, and biosphere interact with the geosphere through weathering and erosion.
Explanation:
describe the parts of the synovial joint and state their functions?
What causes hot spot volcanism?
a. Pyroclastic flows
b. Mantle convection
c. Mantle plumes
d. Subduction
Answer:
The correct answer is C.) Mantle Plumes
Explanation:
Took the test and got it correct! Hope this helps! Have a good day!
The enzyme machinery responsible for mismatch repair must be able to distinguish between the template strand and a newly synthesized strand. How is that achieved in a bacterial cell, such as E. coli
Answer: For a short period of time after replication, the sequence GATC is methylated at the A only on the template strand.
In recently manufactured DNA, a mismatch has been found. The template (old) strand's T is coupled with a G in the new strand.
What effects of mismatch repair in enzyme machinery?DNA damage causes the mismatch repair enzyme MLH1 to become active. However, MLH1 expression appears to be connected to apoptotic signaling.
As well as being necessary for damage repair, When it is activated, activities that result in planned cell death are triggered.
A region of DNA containing the mismatched nucleotide and its neighbors is removed, and the new DNA strand is cut. A DNA polymerase substitutes the missing nucleotides for the missing patch.
The mismatch repair machinery separates the newly synthesized strand from the template to start the repair process (parental).
Therefore, a short period of time after replication, the sequence GATC is methylated at the A only on the template strand.
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