The ability of lymphocytes to recognize and accept the body's own antigens as not foreign is called:

The number of nitrogen molecules that react with excess hydrogen to produce 2x10^10 ammonia molecules is 1×10¹⁰.

Stoichiometry is the calculation of a balanced chemical equation that determines the ratio between reactants and products in a chemical reaction.

Equilibrium in chemical equations obeys conservation principles and Dalton's model of the atom, such as the Law of Conservation of Mass, which states that:

                      mass of reactants = mass of products

In this sense, the equation must have equal weight on both sides of the equation.

In terms of reactions, both are in equilibrium 3H₂ + N2 ⟷ 2 NH₃

If 1 molecule of nitrogen produces 2 molecules of ammonia

2 x 10¹⁰ ammonia molecules will be produced if 2 x 10¹⁰ × 1/2= 1 × 10¹⁰ molecules.

So, the number of susceptible nitrogen molecules is 1 × 10¹⁰.

Learn more about stoichiometry reaction at https://brainly.com/question/14935523

#SP4

Answer:

helium

Explanation:

balloon

Answer:

Agarose gel electrophoresis is commonly used to separate DNA fragments following a restriction digest or PCR amplification. Fragments are detected by staining the gel with the intercalating dye, ethidium bromide, followed by visualization/photography under UV light.

Get at least 150 minutes (for instance, 30 minutes a day, five days a week) of aerobic exercise of a moderate intensity per week.

And Participate in muscle-strengthening exercises involving all major muscle groups at least twice each week.

The more physical exercise you engage in, the more benefits there will be for your health. a minimum of 150 minutes per week for instance, 30 minutes per day, five days per week of moderate intensity exercise like brisk walking. Or they require 75 minutes per week of intense action like jogging, running, or mountaineering.

Older persons should be as physically active as possible even if they are unable to complete 150 minutes of weekly moderate-intensity aerobic activity (for instance, 30 minutes five days a week).

To know more about aerobic exercise

https://brainly.com/question/25175391

#SPJ4

Forensic scientists can determine the cause of death, the postmortem index, and any changes in the position of the corpse by observing the insect population and its developing larval stages.

As decay progresses more quickly, more blowflies, beetles, and mites are drawn to the body by the odors and bodily fluids that start to leak from it. The predatory flies and beetles that arrive later consume both the decomposing flesh and maggots.

Since other forensic techniques are equally or more accurate before this point than the bug evidence, the majority of cases involving a forensic entomologist are 72 hours or older.

To know more about forensic investigators visit:-

https://brainly.com/question/13073221

#SPJ4

The characteristic of life that is demonstrated by the chemical reactions in a snake's body to produce venom is b. metabolism (and then response).

The capacity of response in evolutionary terms refers to the adaptative responses that a species have in order to face a challenging enviroment such as occurs in this case for the production of venom, which is a response to obtain foods in a very competitive enviroment (venom paralyze the prey in order to eat them during the coevolution between the prey and the depredator species).

Therefore, with this data, we can see that the capacity of response by metabolism in evolutionary terms is a type of ability that organisms have in order to obtain foods in an ever changing environment such as occurs in this case with the synthesis of venom by snakes.

Learn more about the process of evolution here:

https://brainly.com/question/4207376

#SPJ1

When red blood cells are placed into a solution with higher concentration as compared to their contents (eg pure water) will gain water by osmosis, burst and swell up.

Osmosis is termed as the net movement of water across with semipermeable membrane. This across of membrane, water will moves from an area of higher concentration to lower concentration.

If red blood cells are  placed in water, then water enters the cell by osmosis. Because the membrane is quite very weak the cell will burst as the volume and therefore the pressure in the cell will increases. Red blood cells shrink when it placed in the concentrated solutions of sugar as water moves out of them by the osmosis.

To know more about osmosis here

https://brainly.com/question/1799974

#SPJ4

Answer:

option b is correct pls mark brainliest if u r girl

Option a. hypothesis is question that you are trying to seek answer or solve in a scientific method.

A theory proposed to explain a fact is known as a hypothesis. A hypothesis cannot be a research hypothesis unless it can be tested using the research methodology. Research hypotheses are frequently founded on earlier results that the existing body of knowledge is unable to adequately address.

The variable which the scientist modifies or manipulates in an investigation is known as the independent variable. The observed reaction is the dependent variable. The dependent variable is based on the variation in the independent variable, to put it another way.

To learn more about hypothesis here

brainly.com/question/29519577

#SPJ4

A round body that contains DNA and regulates gene expression is the nucleus.

The nucleus is а membrаne-enclosed orgаnelle found in most eukаryotic cells. The nucleus is the lаrgest orgаnelle in the cell аnd contаins most of the cell's genetic informаtion (mitochondriа аlso contаin DNА, cаlled mitochondriаl DNА, but it mаkes up just а smаll percentаge of the cell’s overаll DNА content). The genetic informаtion, which contаins the informаtion for the structure аnd function of the orgаnism, is found encoded in DNА in the form of genes.

The function of the nucleus is to mаintаin the integrity of these genes аnd to control the аctivities of the cell by regulаting gene expression. Gene expression is the process by which the informаtion in а gene is "decoded" by vаrious cell molecules to produce а functionаl gene product, such аs а protein molecule or аn RNА molecule.

For more information about the nucleus refers to the link:  https://brainly.com/question/14313389

#SPJ4

Answer:

Nucleotides are arranged in two long strands that form a spiral called a double helix. The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder's rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder.

The fruit papaya includes the enzyme papain, which aids in the breakdown of proteins by severing the bonds between amino acids, gradually softening the meat.

As a result, it is perfect for use as a meat tenderizer because its enzyme gives meat a softer texture and more flavor. Meat would become more soft thanks to a protein-digesting enzyme that would reduce lengthy, fibrous protein chains into smaller protein chains. An enzyme will accomplish the same type of cutting, but on a smaller scale, just as repeatedly piercing a tough piece of meat with a fine blade will cut long protein strands into shorter, more delicate fibres.

Papaya and a few other plants contain the protein-cleaving enzyme known as papain. Complex molecules called enzymes are created by living things to catalyze (fast-track) chemical reactions inside of cells.

To know more about papain

https://brainly.com/question/7031528

#SPJ4

Darwin's greatest contribution to science is that he completed the Copernican Revolution by drawing out for biology the notion of nature as a system of matter in motion governed by natural laws. With Darwin's discovery of natural selection, the origin and adaptations of organisms were brought into the realm of science.

The form of cellular transport is being illustrated below in the given diagram is known as exocytosis.

Cellular transport may be defined as the process of movement of substances across the cell membrane either into or out of the cell. Cell transport includes passive and active transport. Passive transport does not require energy whereas active transport requires energy to proceed.

Exocytosis is the process through which cells move materials from within the cell into the extracellular fluid. It significantly occurs when a vesicle fuses with the plasma membrane, allowing its contents to be released outside the cell.

Therefore, the form of cellular transport is being illustrated below in the given diagram is known as exocytosis.

To learn more about Exocytosis, refer to the link:

https://brainly.com/question/1581504

#SPJ1

Answer:

Dna Is a double stand made of two stands twist together

Explanation:

alleles is the alternative form of genes

genes are small section of dna

chromosome long.thread like structure which carries genetic information

These characteristics of R-selected species perfectly:

r-selected species, also called r-strategist, species whose populations are governed by their biotic potential (maximum reproductive capacity, r). Such species make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O. Wilson; K-selected species—that is, species whose population sizes fluctuate at or near their carrying capacity (K)—make up the second strategy.

The production of numerous small offspring followed by exponential population growth is the defining characteristic of r-selected species. They require short gestation periods, mature quickly (and thus require little or no parental care), and possess short life spans. Unlike K-selected species, members of this group are capable of reproduction at a relatively young age; however, many offspring die before they reach reproductive age.

Learn more about r-selected species at https://brainly.com/question/29436222.

#SPJ4

Answer:

B. precipitation, runoff, evaporation, condensation, precipitation.

Explanation:

A is incorrect because in order for the water to get to the point of condensation, it needs to be evaporated into the clouds. B is correct because the first thing that needs to happen is for precipitation to occur. Then, the precipitation can become runoff and wait in a puddle, lake, ocean, etc. The precipitation is then evaporated into the clouds, where it condenses and the process starts all over. C is incorrect because in order for the precipitation to be evaporated again, it needs to run down the sides of things and gather somewhere to wait. Then, it can be evaporated. D is incorrect because it is impossible for precipitation to be evaporated before it can be one runoff. Therefore, the order is wrong.

Hope this helps! :)

the answer is large reptiles

Explanation:

When the first dinosaurs, marine reptiles, lizards and tortoises appeared mammals appeared during the Triassic but they remianed unsignficant until their competitors tje dinosaurs became extinct at the end od cretaceous they all ruled the land and air

Answer:

Interphase

Explanation:

Many variables affect the loss of normal joint flexibility including injury, inactivity or a lack of stretching. The range of motion will be influenced by the mobility of the soft tissues that surround the joint. These soft tissues include: muscles, ligaments, tendons, joint capsules, and skin.

In MS Excel, the returned value from cell A49 is 4, which is based on the "count" function.

In MS Excel, a count function is used to calculate the number of entries in a cell or the number of fields that meet a predefined value set by the user.

In the given picture, 'NP*' is the predefined value that is set by the user, and therefore the value that would be returned in cell A49 based on the formula "[=COUNTIF(A43:A47, "NP*")]" is 4. It is because the calls A43, A44, A45, and A46 are containing the value "NP."

You can learn more about MS Excel at

https://brainly.com/question/27927845

#SPJ4

The fact that sperm whales can dive to depths of 7,000 feet illustrates that some sea creatures have adapted to hydrostatic pressure. Thus, the correct option for this question is A.

Sperm whales are mostly dark grey, though some whales have white patches on the belly. They are the only living cetacean that has a single blowhole asymmetrically situated on the left side of the crown of the head.

The heads of sperm whales are extremely large, accounting for about one-third of their total body length. The one common theory is that the fluid that represents the hardens to wax at the time of cold it helps the whale alter its buoyancy due to this it can dive deep and rise again. This is due to the fact known as hydrostatic pressure.

Therefore, the fact that sperm whales can dive to depths of 7,000 feet illustrates that some sea creatures have adapted to hydrostatic pressure. Thus, the correct option for this question is A.

To learn more about Sperm whales, refer to the link:

https://brainly.com/question/30054089

#SPJ1

Answer: I think it basically means that if something is stopping you from being the best version of yourself or being successful then remove that thing from your life so you can be the best or be successful. Take control of your life and don't waste any opportunities!

Answer:

23

Explanation:

At the conclusion of anaphase, each end of the cell has an identical and complete set of 46 chromosomes or 23 pairs of homologous chromosomes; they are still diploid. Telophase: Telephase begins once the chromosomes have completed separating and reached the opposite poles of the cell.

The  letter to my body letting it know how important MEIOSIS is for your body to function and carry out life is given below

Dear body,

I am writing to remind you of the crucial role I, Meiosis, play in your function and ability to carry out life. Without me, the process of creating genetically diverse gametes, the cells responsible for fertilization, would not be possible.

As you may know, my primary function is to reduce the number of chromosomes in a cell from the diploid number to the haploid number. This process, also known as cell division, is essential for the formation of healthy and viable gametes. Without the reduction of chromosomes, fertilization would not occur and the continuation of life would be impossible.

During my process, genetic diversity is also increased through the process of crossing-over, in which genes from different chromosomes can be exchanged. This leads to the formation of unique combinations of genetic information in each gamete, which is vital for the survival of future generations.

In short, my role in your body is to ensure the creation of healthy and genetically diverse gametes through the reduction of chromosomes and the process of crossing-over. Without me, fertilization and the continuation of life would not be possible. Please remember to take good care of me and the cells that I work with.

Sincerely,

Meiosis

Learn more about MEIOSIS from

https://brainly.com/question/2735539

#SPJ1

Answer:

Explanation:

atp

Answer:  B

Why: because History is the study of past events, so it makes sense to find the oldest rocks in the area, because the older that things are, the most history that they have.

A would not be correct because patterns are not history.

C would not be correct because current features are not history, that is observing things in the present.

D would not be correct because shape has nothing to do with history.

Sociology is a social science that focuses on society and social behavior.

Sociology, the social science that studies human societies, their interactions, and the processes that maintain and transform them. This is done by examining the dynamics of social constructs such as institutions, communities, population groups, gender, race and age groups. Sociology also studies social status or stratification, social movements and social change, and social disruption in the form of crime, deviation, and revolution. Social life overwhelmingly regulates human behavior, largely because humans lack the instincts that guide most animal behavior. Therefore, people rely on social institutions and organizations to inform their decisions and actions.

Know more about Sociology here: https://brainly.com/question/25099331

#SPJ4

Answer: Sociology is a social science that focuses on society and social behavior.Sociology, the social science that studies human societies, their interactions, and the processes that maintain and transform them. This is done by examining the dynamics of social constructs such as institutions, communities, population groups, gender, race and age groups. Sociology also studies social status or stratification, social movements and social change, and social disruption in the form of crime, deviation, and revolution. Social life overwhelmingly regulates human behavior, largely because humans lack the instincts that guide most animal behavior. Therefore, people rely on social institutions and organizations to inform their decisions and actions.

Explanation:

Answer:

worms, seeds, some nuts, other small animals if the bird is bigger, berrys