Answer:
When self-determination mechanisms break down it mistakes self-tissue as foreign agents and pathogens. This results is Auto-Immune disease.
HOPE THIS HELPS!
When the self-determination mechanisms break down, the body misinterprets its own tissues as foreign antigens, which activates the autoimmune mechanisms to destroy the body's own cells, mistaking them for foreign factors, this happens mainly in mantle autoimmune diseases.
Autoimmune diseases are a group of diseases in which tissue damage is caused by a humoral or cell-mediated immune response to a person's own antigens.
What are antigens ?In immunology, an antigen (Ag) is a molecule or molecular structure or any foreign particle or pollen grain that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body can trigger an immune response. The term antigen originally referred to a substance that is a generator of antibodies. Antigens can be proteins, peptides (chains of amino acids), polysaccharides (chains of monosaccharides/simple sugars), lipids or nucleic acids. Antigens are recognized by antigen receptors, including antibodies and T-cell receptors.
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Which of these is not a characteristic of all living things?
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Explanation:
hope this helps
Put the following in order of size, starting from the largest: Cell - organ system - organ- tissue
Answer:
Organ System
Organ
Tissue
Cell
Are seasonal responses in plants triggered by temperature or by length of daylight
Answer:
Plants don't have sensation of time, at least that we know till now. However plants have different stimuli against the different environmental change i.e lack of water causing yellow and fall of leaves. Such seasonal responses are reaction to environmental changes rather than timeline.
What type of reproduction involves one parent making identical copies of themselves?
A. Asexual
B. Sexual
C. Meiosis
D. Selective Breeding
Tell me a description of the urea in simple terms.
Answer:
Urea: A nitrogen-containing substance normally cleared from the blood by the kidney into the urine. Diseases that compromise the function of the kidney often lead to increased blood levels of urea, as measured by the blood urea nitrogen (BUN) test.
There are several ways to produce the amino acids that build a protein. What does this mean?
Answer: Some MRNA codons code for multiple amino acids. So they can produce amino acids many ways, that build a protein.
There are several ways to produce the amino acids that build a protein because the genetic code is DEGENERATE or REDUNDANT.
In a given messenger RNA (mRNA) sequence, the triplets of nucleotides or 'codons' indicate specific amino acids to be added during protein synthesis.
The genetic code is said to be 'degenerate' or 'redundant' because different codons may encode the same amino acid.
For example, both the AUC codon and AUA codon in mRNA specify isoleucine, so alterations (i.e., mutations) in the nucleotide sequence do not always alter the protein sequence.
In conclusion, there are several ways to produce the amino acids that build a protein because the genetic code is DEGENERATE or REDUNDANT.
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How is cell differentiation different than mitosis?
Cell differentiation does not cause proliferation.
Cell differentiation produces cells with different gene expressions.
Cell differentiation only occurs after a wound.
Cell differentiation produces cells with different DNA.
Answer:
it should be produces cells with different gene expressions
The process of cell differentiation is different than mitosis by the mechanism that cell differentiation produces cells with different gene expressions. Thus, the correct option for this question is B.
What is Mitosis?Mitosis may be defined as a type of cell division that produces two genetically identical daughter cells from a parental cell. It generally synthesizes diploid daughter cells. This process of mitosis occurs in the eukaryotic cells.
The generation of specialized cell types is called cell differentiation. It is the process during which a cell ceases to divide and develops specialized structural elements and distinct functional properties due to different gene expressions.
After the termination of cell differentiation, cells are structurally and functionally specialized with respect to their functions.
Therefore, the process of cell differentiation produces cells with different gene expressions. Thus, the correct option for this question is B.
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Carbohydrate, Protein, and Fat Digestive Enzymes A key objective in this chapter is to identify the major enzymes in the digestion of carbohydrates, proteins, and fats as well as the organs that secrete them. This activity requires you to match the enzyme with the secreting organ. Drag the names of the enzymes to their respective bins, representing the appropriate secreting organ. Some organs secrete more than one enzyme. 1. pancreatic amylase2. pepsin3. salvary amylase4. gastnc lipase 5. pancreatic lipase6. trypsin 7. chymotrypsin8. carboxypeptidaseA. Salivary Glands B. Stomach C. Pancreas D. Small Intestine
Answer:
its C
Explanation:
The following enzymes are secreted by the organs listed below:
Salivary glands: salivary amylaseStomach: pepsinPancreas: pancreatic amylase, pancreatic lipase, trypsin, chymotrypsin, carboxypeptidaseSmall intestine: pancreatic lipase, trypsin, chymotrypsin, carboxypeptidaseSalivary amylase enzyme is secreted by the salivary glands and breaks down starch into maltose. Pepsin enzyme is secreted by the stomach and breaks down proteins into smaller polypeptides. Pancreatic amylase enzyme is secreted by the pancreas and breaks down starch into maltose. Gastric lipase enzyme is secreted by the stomach and breaks down fats into fatty acids and glycerol.
Pancreatic lipase enzyme is secreted by the pancreas and breaks down fats into fatty acids and glycerol. Trypsin enzyme is secreted by the pancreas and breaks down polypeptides into smaller polypeptides. Chymotrypsin enzyme is secreted by the pancreas and breaks down polypeptides into smaller polypeptides. Carboxypeptidase enzyme is secreted by the pancreas and breaks down polypeptides into amino acids.
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who was the 20th. president. think for your help...
Answer:
James A. Garfield
Explanation:
Short and Good To Know Facts
Married Lucretia Garfield
Died by assassination after 6 months of being in office
Vice president was Chester A. Arthur
what is the best example of equilibrium would be isotonic, hypertonic, hypotonic, facilitated diffusion
Answer:
isotonic
Explanation:
In order to prevent the cells from either swelling or shrinking, the body fluids should be isotonic, meaning that they are at equilibrium.
What are two things that characterize the practice of science?
a. a lipid molecule
b. an indicator
c. an ADP molecule
d. an enzyme
Answer:
D. .................................
What makes up tissue?
A) a group of cells
B) a group of muscles
C) a group of organs
D) a group of organ systems
Answer:
A. A group of cells
Explanation:
Which of the following statements is true?
Capillaries pass oxygen and waste between blood and cells.
Red blood cells fight disease.
People with type O blood can receive AB blood donations.
The left ventricle controls the heartbeat.
Answer: Capillaries pass oxygen and waste between blood and cells.
Explanation: Capillaries are very thin-walled tubes that connect the arteries to the veins. The walls of these tubes are only one cell thick. Capillaries are found everywhere in the body. These thin tubes allow the food, oxygen, and waste to move between the bloodstream and cells. Waste products pass into capillaries and are carried by the veins to be disposed of in other parts of the body. Capillaries are the only blood vessels thin enough for materials to pass back and forth between cells and blood.
Blood Capillaries pass oxygen and waste between blood and cells. Thus option A is correct.
What are the function of blood capillaries?Capillaries are small type of blood vessels where a single red blood cell can barely fit in them.
They involve in the connection of arteries and veins, facilitate the exchange of certain elements between blood and tissues.
They involve in exchange of oxygen, nutrients, and waste between blood and tissues by two major process called passive diffusion and pinocytosis.
In passive diffusion the movement of a substance from the region of higher concentration to the region of lower concentration occur.
In Pinocytosis, intake of small molecules by the cell of the body like fats and proteins.
The capillaries wall are composed up of endothelium which is a thin cell layer called and surrounded by another thin layer called a basement membrane.
Thus option A is correct.
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Which scenarios is the best example of positive feedback?
Explanation:
As Body temperature decreases, your body begins to shiver and you begin to sweat.
please follow meYour airways are coated with a thin layer of liquid called ASL and a mucus gel layer, both which neutralize foreign particles to prevent infection. In people with
Cystic Fibrosis, a gene has an error, which causes the cells of the airways (lungs, etc) to have defective plasma membranes The ASL and mucus are much
thicker than usual near the defective cells, causing a lot of lung congestion because the defective cells allow too much salt into the cells Why would allowing too much salt into the cells create thicker ASL and mucus?
À. The increased salt in the cells makes the person thirsty, leading to thickened ASL and mucus in the lungs
B. The increased salt in the cells causes water from the airways to move into the cells by osmosis, thickening the ASL and mucus in the lungs.
C. The increased salt in the cells causes water from the cells to move into the airways, thickening the ASL and mucus in the lungs
D. The increased salt in the cells is absorbed by the cytoplasm of the cell causing water to leave the cells and enter the lungs,
Answer:
d
Explanation:
How are chemosynthetic bacteria different from photosynthetic bacteria?
A Chemosynthetic bacteria do not require water B Chemosynthetic bacteria eat tube wormS. C. Chemosynthetic bacteria require intense sunlight
D. Chemosynthetic bacteria do not need light.
Answer:
D
Explanation:
Chemosynthetic bacteria different from photosynthetic bacteria in that Chemosynthetic bacteria do not need light and the correct option is option D.
Chemosynthetic bacteria are a type of bacteria that can produce their own energy and organic compounds without the use of sunlight. They obtain their energy by oxidizing inorganic substances, such as hydrogen sulfide or methane, and using the energy released from these chemical reactions to synthesize organic molecules.
In contrast, photosynthetic bacteria, including cyanobacteria, use sunlight as a source of energy for photosynthesis. They have pigments, such as chlorophyll, that capture light energy and convert it into chemical energy through a series of biochemical reactions.
Chemosynthetic bacteria can thrive in environments with little or no light, such as deep-sea hydrothermal vents or certain underground ecosystems. They are able to utilize chemical energy sources to sustain their metabolic processes and support their growth and reproduction.
Thus, the ideal selection is option D.
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How does the structure of a white blood cell affect its function?
Answer:
they fight and kill the bad bacteria in your body to help you stay healthy
Explanation:
A big body of land on the globe?
what is the relationship between kinetic energy and speed
Answer:
The energy transferred is known as kinetic energy, and it depends on the mass and speed achieved.
This equation reveals that the kinetic energy of an object is directly proportional to the square of its speed.
KE = 0.5 • m • v2
where m = mass of object
v = speed of object
That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four. For a threefold increase in speed, the kinetic energy will increase by a factor of nine.
The kinetic energy of an object is a function of its speed.
More specifically, the kinetic energy of an object is directly proportional to the square of the speed of the object.
Mathematically, the relationship between the 2 quantities can be represented such that:
Kinetic Energy = 1/2 x mass x velocity^2
Velocity refers to the speed in a particular direction.
Thus, for a 2 fold increase in speed, the kinetic energy of an object increases in 4 folds.
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15. Which of the following shows the correct sequence of what happens to the water molecules in an ice
cube when it is removed from the freezer?
(1 point)
1. The molecules gain enough energy to break free from each other.
2. The ice begins to melt.
3. The molecules vibrate in a fixed position.
4. The temperature of the of molecules increases.
5. Thermal energy is absorbed from the surroundings.
6. The molecules vibrate faster.
0 3,1,4,6,5,2
O 5,1,4,6,3,2
O 3,5,6,1,2,4
O 5,3,1,4,6,2
Answer:
the second one because the just start to melt
Coca-Cola owns a massive fleet of delivery trucks that have contributed 3.7 million metric tons of greenhouse gases to the atmosphere so far. Coca-Cola
decided to change by investing in new trucks that use alternative energy to do their deliveries. Their goal is to reduce their carbon footprint by 25% by the year
2020. What's this an example of?
A. Corporate responsibility
B. Market-based approach
C. Government incentive
D. Tragedy of the Commons
9. The table below lists three characteristics of an atom of an element.
Number of Protons
Number of Neutrons
Number of Valance Electrons
37
48
1
An atom of which element is described by the data in the table?
A Radon (Rn)
B Cadmium (Cd)
C Rubidium (Rb)
D Astatine (At)
Answer:
C. Rubidium
Explanation:
Rubidium has 37 protons
Answer: Rubidium (Rb)
Explanation: just did it and got it right
What is found in a eukaryotic cell but not in a prokaryotic cell?
Answer:
Hey!
Your answer is a NUCLEUS
Explanation:
Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. You could also say that they also lack MITOCHONDRIA, CHLOROPLASTS and VACUOLES (these are other possible options!)
I HOPE THIS HELPED YOU!Things eukaryotes have and prokaryotes don't are:-
A true nucleus.Membrane bound organelles.What are prokaryotes ?
Prokaryotes are organisms whose cells lack a nucleus and other organelles.
Prokaryotes are divided into two distinct groups:
The bacteria and the Archaea, which scientists believe have unique evolutionary lineages. Most prokaryotes are small, single-celled organisms that have a relatively simple structure.To know more about eukaryotes here
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Does anyone know all the answers?????
The difference between an exergonic and endergonic reaction is that and exergonic reaction results in a decrease in mass while and endergonic reaction results in an increase in mass.
Explanation:
A good was to remember the different reactions is the ex- means out and en- means in. Exergonic reactions release energy and endergonic reactions take energy in.
How many atoms of oxygen are in the formula for 2 hydrogen peroxide? 2H202
Answer:
The mass of hydrogen peroxide, H2O2 would be calculated like this: H2O2 has 2 hydrogen atoms and 2 oxygen atoms in it. So one molecule of hydrogen peroxide weighs in at 34.02 u.
Explanation:
pretty self explanatory.
PLEASE help
If anyone know which it is please tell
thank you
Answer:
Explanation:
Because there not like humans they don't move very much they still need water and sunlight though make sure they get sunlight daily and water weekly - for number9 !! hope its right
Answer:
6) Plants create photosynthesis to get energy, animals eat waste and other organisms.
7) Yes, the body does get all the energy from the sun. When we eat animals that eat plants, the energy from CR goes to the consumers.
8) No, CR is the result of photosynthesis, if no CR were around, photosynthesis could not begin.
9) Plants needs energy to help move things in and out of the cell. Plants also need energy to grow and reproduce.
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Which correctly lists the three main ocean zones
Deep neritic surface
Intertidal deep surface
Neritic intertidal open ocean
Open ocean deep continental
They are the intertidal zone, neritic zone, and oceanic zone.
intertidal zone neritic zone and oceanic zone.
Explanation:
mark brainly pls
Which part of an atom is responsible for absorbing energy and releasing it as colored light?
Answer:
The electron
Explanation:
The electron is responsible because it absorbs incoming energy by switching it's orbiting level one step higher and when releasing the given energy it jumps back to it's original orbiting level and emits visible light!
Answer: photons
Explanation: When an electron jumps from the second energy level to the first, it gives off energy by releasing light. The atom aborbes or emits the light in photons. Each photon has definite energy.
warning: i could be wrong so I'm sorry if i am incorrect.
If you were dropped off on the North American continent at a latitude of 40° N, which of the following climate zones would you discover there?
Answer:
temperate
Explanation:
i think
