Answer:
can be caused by interaction with MHC/peptide in the absence of costimulation
Explanation:
T cells represent a class of white blood cells (lymphocytes) that have a major role in the adaptive immunity of the organism against specific pathogens. Peripheral tolerance is a type of immunological tolerance aimed at ensuring B and T cells that escaped from the central tolerance mechanism do not produce autoimmune diseases. Some populations of lymph node cells can induce peripheral tolerance in T helper cells (Th cells, CD4+ cells) by the presentation of peptide-MHCII (major histocompatibility complex type II) complexes acquired from dendritic cells. These dendritic cells are antigen-presenting cells that play a key role in adaptive immunity, which are well-known to induce CD4 and CD8 T cell tolerance in response to antigens (peptides/proteins).
Cancer is the uncontrolled growth of cells which of the following would be most likely to cause cancer
Answer:
What are the choices?.....
Help!!! please!! this test is timed!! I will give brainliest!!!
What is a system?
2 points
The solid rock part of Earth, including mountains, valleys, continents, and all of the rock beneath the oceans
The set of all water on the earth's surface, such as lakes, seas, and oceans
A group of related parts that all work together to perform a specific function
The greenhouse gases that help keep the earth at a temperature where water is in liquid form
Answer:
A group of related parts that all work together to perform a specific function
Explanation:
The starfish's water-vascular system is used for locomotion and capturing food. True/False
Answer:
true
Explanation:
What kind of front does not cause a temperature change and producing light wind and precipitation?
A-Cold front
B-Occluded fronts
C-Stationary fronts
D-Warm front
Answer:
D. Warm front
Explanation:
Warm fronts typically have warmer and more moist air than the air in front of it. Replacing the cold air with warm air can cause precipitation.
help me pleaseeeeeeeeeeeeeeeeeeeee
Answer:
a
Explanation:
Paleontology is the study of the history of life on Earth as based on fossils. Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.]
What are some
drawbacks of hydroelectric
plants?
Answer:
hydropower has the ability to generate electricity without emitting greenhouse gases. however it can also cause environmental and social threats such as damaged wildlife habitat, harmful water quality, obstructed fish migration and diminished recreational benefits of rivers.
3:Briefly describe in a paragraph your learning Online experience as a Science students.
Answer:
i also don't know i am in 9 hahahaha
Answer:
I honestly love it! Not only does online school give me more freedom to do my daily activities such as sports and cooking but it also reduces my in-person learning stress. With science specifically, I can create visual representations of the lesson/subject matter to help me better understand the question or item being taught. It can also be more difficult at times because you don't have a teacher that you can raise your hand for and get an immediate answer or help with your question as you would in a typical brick-and-mortar/physical school classroom.
Hope this helps and please leave me brainliest!Case Study no. 1
A 35 year old woman complains of muscle weakness, anxiety and depression.
Questions:
1. Which disorder account for the symptoms?
Answer:
the disorder that muscles weaken, axiety and depression is hypothyrodism.
Explanation:
A
B
C
D
HELP PLEASE!!
Answer:
Explanation:
I think C
Answer:
D
Explanation:
it's d because the features of the crosses involving incomplete dominance are intermediate phenotype of heterozygous individuals and perental phenotypes reappear in F2 when heterozygotes are crossed
not really sure but it does makes sense :)
2. Max did an experiment where the temperature of an enzyme called trypsin was above 40
degrees Celsius. Explain what would happen to the activity of trypsin above 40 degrees
Celsius
3. Explain one difference in the sub-cellular structures in a cell in the potato and those in a cell
in the leaf of the potato plant
PLZ HELP WILL GIVE U BRAINLIAST ANSWER !!
Answer:
I can only answer number 2 right now. Trypsin will become denatured.
Explanation:
Enzymes have a temperature that they work best at called the optimum pH.
through which fastest medium would sound travel fastest? iron or water at 25 degree C ?
6) What new thing have you been doing to stay stress-free and positive during the pandemic?
Answer:
Close my eyes an play calming music of nature and relax and feel like in nature and there is nothing else to stress about
Explanation:
Answer: I've been reading books, cleaning my room and listening to podcasts and music!
Which of the following conditions result in the highest rate of transpiration?
A warm, windy and dry
B warm, windy and wet
C cold, windy and dry
D warm, still and wet
Answer:
the answer is A
Which of the following gives you information about a population’s age structure?
Group of answer choices
All individuals are found at least 10 meters away from others.
There are 25 individuals with a square kilometer.
Individuals live in rain forests in tropical South America.
There are 10 males and 15 females under the age of two.
Answer:
There are 10 males and 15 males under the age if two.
During the daytime, the land warms up faster than water causing the air above the land to be less dense and rise into the atmosphere. What will this cause?
Answer:
The faster warming of the earth than water that causes the air above the land to be less dense and rise into the atmosphere will result in Sea breezes
Explanation:
Land and Sea breezes are phenomena which occur through the heat transfer process of convection.
Sea breezes occur mostly during the hot summer afternoons because of the unequal heating of land and water. During the day, both the land and sea receives equal amounts of heat from the sun, but, the land surface heats up faster than the water surface. Therefore, the air above the land becomes heated up more and is warmer than the air above the ocean. The air above the land to become less dense and as result, the warm air rises into the atmosphere. However, at the ocean surface, the air above is is colder and hence, denser than the warm air over the land surface. Thus, the air pressure at the ocean surface is greater than at the earth's surface. As the warm air over the land is rising, a convection current is set up and the cooler air over the ocean flows with the aid of the wind and replaces the warm air from earth's surface. This is known as sea breeze.
Answer:sea breeze
Explanation:Sea breezes occur mostly during the hot summer afternoons because of the unequal heating of land and water. During the day, both the land and sea receives equal amounts of heat from the sun, but, the land surface heats up faster than the water surface. Therefore, the air above the land becomes heated up more and is warmer than the air above the ocean. The air above the land to become less dense and as result, the warm air rises into the atmosphere. However, at the ocean surface, the air above is is colder and hence, denser than the warm air over the land surface. Thus, the air pressure at the ocean surface is greater than at the earth's surface. As the warm air over the land is rising, a convection current is set up and the cooler air over the ocean flows with the aid of the wind and replaces the warm air from earth's surface. This is known as sea breeze.
How would I describe the movement of molecules, if I drop food coloring into a glass of water?
5 points
The following passage describes inheritance.
Complete the passage by writing a suitable word or words on each dotted line.
A gene is a section of a double-stranded molecule known as
This molecule is found within the
of the cell,
contained in threadlike structures called
The two strands form a double helix linked by a series of paired bases.
The base adenine is always linked to
and the base cytosine
is always linked to
Your answer
Answer:
A gene is a section of a double-stranded molecule known as DNA. This molecule is found within the nucleus of the cell, contained in threadlike structures called chromatin. The two strands form a double helix linked by a series of paired bases. The base adenine is always linked to thymine and the base cytosine is always linked to guanine.
Transcribe the following DNA Strand:
AGT TAC AAG TCG TTT TTC CAT ATC AAA
Give an example of the law of conservation of mass.
If ur correct i'll give brainliest.
Answer:
In a chemical reaction mass is neither created nor destroyed
Explanation:
HOPE THIS HELPED
Answer:
The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example when wood burns, the mass of the soots, ashes, and gasses equal the original mass of the charcoal and the oxygen when it first reacted
20 points, quick question
After one species disappears, the other species in the ecosystem ____.
a. benefit
b. are thrown out of balance
c. die
d. are unaffected
Answer:
a
Explanation:
i learned this last year
Which is true about factors that influence
weather?
A. Precipitation type depends on air
temperature.
B. The rain shadow effect causes equal
precipitation on both sides of a mountain.
C. As air sinks, it absorbs moisture and forms
rain clouds.
Answer:
B. The rain shadow effect causes equal
precipitation on both sides of a mountain.
Explanation:
A rain shadow is a patch of land that has been forced to become a desert because mountain ... On the other side of the mountain—the rain shadow side—all that precipitation is blocked. ... This cool air cannot hold moisture as well as warm air. Cool air forms clouds, which drop rain and snow, as it rises up a mountain.
reproductive process of amoeba
Reproductive process of amoeba
Why should you not exercise right after a meal? Select all that Apply
your muscles need oxygen
the body cannot supply enough blood to both digestive system and muscles
because your lungs don't function as well
the arteries to the stomach are open wide
the arteries to the leg are open wide
Answer:
(b) The body cannot supply enough blood to both the digestive system and muscles. (d) the arteries to the leg are open wide.
Explanation:
You shouldn't exercise right after eating a large meal, as you may feel bloating or muscle cramping. It's better to eat low-fiber, low-fat, and high-carbohydrate snacks 30 to 45 minutes before exercising. This can include yogurt, fruit, granola, peanut butter, or whole-wheat toast.
Which phrase best describes what a soil horizon is? Question 3 options: the bottom layer of a soil profile each layer of a soil profile the place where two soil profiles meet the place where a soil profile meets bedrock
Answer:
It is answer C
Explanation:
The person in front is correct I took they quiz
7. Should parents be allowed to manipulate the genes of their children to select for certain
traits when the children themselves cannot give consent?
Answer:
Maybe
Explanation:
It depends. Is the trait harmful? Parents should do their best to avoid harmful traits for their children, but no not if its not harmful
What is cell theory
Answer:
The cell theory is as we know it now in biology, its the idea of which all living organisms are made up of cells, and that these cells are the basic structured unit of life in living organisms. Additionally, that all cells come from pre-existing cells. Hope this helped!
Explanation:
How does a chemical equation with coefficients relate to the law of conservation of mass?
A.The total mass must remain constant in a chemical reaction with coefficients in order for a physical change to occur
B.The number of atoms of each element must remain the same before and after a reaction in order for mass of the products to be the same as the mass of the reactants
C.The total mass of the reactants cannot equal the total mass of the products
D.The number of atoms in each element must change after the reaction in order for the mass to remain constant
DO NOT GIVE A LINK TO THE ANSWER PLEASE
Answer:
Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. ... Use coefficients of products and reactants to balance the number of atoms of an element on both sides of a chemical equation.
Explanation:
According to functionalist sociology theory, deviance has ____ negative and positive consequences for society
A.neither B.boring C.excluding D.both THIS IS FOR SOCIOLOGY IGNORE WHAT I PUT AS SUBJECT
Answer:Deviance may be either positive or negative. Negative deviance involves behavior that fails to meet accepted norms. People expressing negative deviance either reject the norms, misinterpret the norms, or are unaware of the norms. Positive deviance involves overconformity to norms.
Explanation:
Which of the following factors of a gene determines the protein, and therefore the trait, it expresses in a cell?
A. Its length and sequence of nitrogen bases.
B. Where the cell is found in the organism.
C. The position inside of the nucleus.
D. Its shape and color after cell reproduction.
Its length and sequence of nitrogen bases. Therefore, option (B) is correct.
What are nitrogenous bases?Nitrogenous bases are the building blocks of DNA and RNA, which are the genetic material of living organisms. They include adenine, guanine, cytosine, and thymine (or uracil in RNA), and their sequence in DNA determines the genetic code that directs the synthesis of proteins.
The length and sequence of nitrogen bases (adenine, guanine, cytosine, and thymine) in a gene determine the specific sequence of amino acids that make up a protein, and therefore the trait it expresses in a cell. This is known as the genetic code, which is a set of rules that determines how the sequence of DNA bases is translated into the sequence of amino acids in a protein.
The other factors listed (where the cell is found in the organism, the position inside of the nucleus, and its shape and color after cell reproduction) do not directly determine the protein or trait expressed by a gene.
Learn more about nitrogenous bases, here:
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I'll give brainliest
Has anyone done the 4.06 Enzymes Lab?
I don't need help on the lab part just the hypothesis.
I'm terrible at writing a hypothesis.
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