A drug like nicotine that produces a biological response in the brain is called an dopamine agonist. Nicotine enters the brain within seconds of taking a cigarette. Nicotine promotes the release of brain chemicals known as neurotransmitters, which help regulate mood and behavior. Nicotine is a hazardous and extremely addicting substance.
It can increase blood pressure, heart rate, blood flow to the heart, and promote brain artery constriction (vessels that carry blood). Nicotine may also contribute to artery wall hardening, which may lead to a heart attack. Nicotine is a stimulant substance that speeds up the transmission of messages between the brain and the body.
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The two most commonly used antibiotics for therapy against uncomplicated tuberculosis are?
The two most commonly used antibiotics for therapy against uncomplicated tuberculosis are isoniazid , ethambutol, and pyrazinamide. Mycobacterium tuberculosis is the bacteria that causes tuberculosis (TB). Although the TB germs typically assault the lungs, they can also affect the kidney, spine, and brain.
Not every person who contracts the TB germs gets ill. Mycobacterium tuberculosis is a type of bacteria that causes tuberculosis (TB). When a person with active TB disease in their lungs coughs or sneezes, TB bacteria-containing droplets that are ejected are inhaled by the other person. Although TB has the potential to be a serious infection, the correct drugs can cure it.
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What organelle showed up as a single, dark circular structure residing inside each cheek cell? is this structure present in elodea (plant) cells as well?
The nucleus shows up as a dark spot in the centre of each cheek cell.
The nucleus is housed in the cytoplasm of a cell; an environment that house the cell functional organelles. The function of the nucleus is to organize DNA into chromosomes via three basic steps known as replication, transcription and translation. The nucleus is surrounded by the nucleoli; a more darkly pigmented spherical structure and a nuclear envelope a double membrane (inner and outer membrane).
The surrounding environment of the nucleus (nucleoli and nuclear envelope) are the site for ribosome assemblage. In cells that produces a large amount of protein, it is easy to site the nucleoli. Cells are either uninuclear or multinuclear that is containing one or more nucleus. The red blood cell is an example of a uninuclear cells while cells in the skeletal muscle are example of multinuclear cells
Elodea's flat, cuboidal leaf cells include a large central vacuole that is encircled by a thin coating of cytoplasm.
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A democracy can have both representative and direct characteristics at the same time.
Yes, democracy can have both representative and direct characteristics at the same time.
There are many both-elements democracies in the Middle and Western US states. On the one hand, they have legislatures made up of Representatives and Senators, which is obviously a representative democracy because the representatives are chosen by their constituents and serve as their representatives in the legislature. Many of these states also have the referendum and initiative processes. In places like South Dakota and Nebraska, voters can use the initiative process to collect signatures and put possible laws on the ballot; if the proposed law achieves a majority vote, it becomes a law and cannot be vetoed. This is a direct democracy since the voters are deciding whether legislation should be passed without using their representatives.
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Static charges can cause explosions and fires wherever there are flammable materials.
True
False
Answer:
true
Explanation:
because Under certain circumstances, a discharge of static electricity can create the spark that starts a fire or triggers an explosion.
Sometimes prokaryotic cells are surrounded by a gelatinous, sticky substance. what is this structure called?
This structure is called glycocalyx.
Glycocalyx- The cell is surrounded by a thick gel-like meshwork called the glycocalyx, which acts as a physical barrier for anything attempting to enter. For instance, it's been shown that the glycocalyx is essential for guarding against pathogens getting inside cells.
Cell- The smallest unit in biology that can sustain life on its own and makes up all living things as well as the body's tissues.
Tissue- A collection of cells with similar structures and functions is referred to as a tissue. The intercellular matrix, a nonliving substance, fills the gaps between the cells. There could be a lot of this in certain tissues and not much in others.
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The right ventricle contracts next, which forces blood up through the ____________ valve, which is also known as the pulmonary valve.
The right ventricle contracts next, which forces blood up through the pulmonary semilunar valve, which is also known as the pulmonary valve. One of the four valves that regulate blood flow in the heart is the pulmonary valve. It is situated between the artery that supplies blood to the lungs and the lower right heart chamber.
The pulmonary valve typically functions as a one-way door from the right ventricle of the heart to the lungs. The pulmonary valve allows blood to go from the right ventricle to the pulmonary artery, where it picks up oxygen before entering the lungs and carrying it to the rest of your body.
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Which additional model component is necessary to explain how geranium plant leaves produce carbohydrates?
Magnesium is a further model component necessary to explain how geranium plant leaves produce carbohydrates.
What is geranium?
Geranium is a genus of 422 species of flowering annual, biennial, and perennial plants that are commonly referred to as the cranesbills. they're found throughout the temperate regions of the world and the mountains of the tropics, but mostly within the eastern part of the Mediterranean region. The long, palmately cleft leaves are broadly circular in form
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The best description of the bonds that form polypeptides and the difference between polypeptides and proteins is.
A) That a covalent link forms between the carboxyl and amino groups, and that a protein can be made up of multiple polypeptides.
What is polypeptide and its function?Polypeptides are created by joining several amino acids together to form polypeptides. The bonding of two or more polypeptides results in the formation of proteins, which are then folded into the appropriate shape.
In terms of structure, polypeptides resemble the specific amino acid groups they belong to, with the exception that covalent, or electron-sharing, bonds join them. The basic components of the polypeptide are amino acids.
Each of the 20 distinct amino acids has a unique structure. You can obtain a sense of how certain amino acids will interact with other amino acids by understanding the structure of the amino acids required for the protein you are creating.
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For a patient with respiratory acidosis chronic compensation by the body will include?
For a patient with respiratory acidosis chronic compensation by the body will include protein buffering.
What is protein?Protein is defined as the large macromolecules and biomolecules that are made up of long chains of amino acid. There is various function of protein such as DNA replication, speeding up chemical reaction, and helps to maintain the structure of cell.
The main function of protein is to maintain the structure and function of organs, repair muscle, and muscles. Diet contain high protein is recommended for the purpose of losing weight, reducing fat, or increasing fat.
There are several types of protein such as structural protein, transport proteins, antibodies, contractile proteins, hormonal proteins, and enzymes.
Therefore, For a patient with respiratory acidosis chronic compensation by the body will include protein buffering.
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Marcus often has a burning sensation or pain in his stomach after eating. he often experiences occasional vomiting. he may be suffering from:_____.
Marcus often has a burning sensation or pain in his stomach after eating. he often experiences occasional vomiting. he may be suffering from ulcers.
What is the stomach?Food is digested by the stomach, a J-shaped organ. It generates acids and enzymes, which are molecules that cause chemical reactions (digestive juices). Food is broken down by this mixture of enzymes and digestive juices so that it may move to your small intestine. A portion of the gastrointestinal (GI) tract includes your stomach.
Stomach ulcersA sore that appears on the esophageal, stomach, or small intestine lining.
When stomach acid affects the lining of the digestive tract, ulcers develop. The H bacteria is one of the usual culprits. Pylori and painkillers with anti-inflammatory properties, such as aspirin.
One typical sign is soreness in the upper abdomen. Medication is frequently used as part of treatment to reduce stomach acid production. Antibiotics might be required if a bacterial infection is to blame.
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Which layer of skin is least protected by melanin?
a. stratum basale
b. stratum granulosum
c. stratum spinosum
d. stratum corneum
Stratum corneum is least protected by melanin.
What is melanin ?
Your body contains melanin, which is responsible for the colour of your hair, eyes, and skin. The more melanin you create, the darker your eyes, hair and skin will be. Your body's melanin content is influenced by a number of variables, including your genes and how much sun exposure your ancestors received.
The barrier that keeps undesired things from entering the body and excessive water loss from occurring is now widely acknowledged to be the stratum corneum (SC), the skin's outermost layer and interface with the outside world. The main developments in our understanding of this tough membrane are summarized in this study.
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What type of bonds occurs in tertiary and quaternary structures to cause a ""globular"" look?.
Hydrogen bonds occurs in tertiary and quaternary structures to cause a ""globular"" look.
The maintenance of secondary structures depends on hydrogen bonds between the backbone atoms, and the maintenance of tertiary structures depends on hydrogen bonds between side chains. At hydrogen bonds in globular proteins, examples of both types can be seen and visualised.
What kinds of bonds are present in tertiary and quaternary structures?The same intermolecular forces that hold secondary and tertiary structures together also hold these different polypeptides together. In addition, disulfide bonds can be found in quaternary structure just like they can in tertiary structure. Disulfide bonds are thus present in both tertiary and quaternary structures.
Non-covalent bonds such as hydrogen bonds, hydrophobic interactions, ionic (electrostatic) bonds, and Van der Waals interactions hold the monomeric subunits in the protein's quaternary structure together.
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PRETTY PRETTY PLEASEEEEEE HELP
What does the term "homeostasis" mean?
Question 2 options:
respond to their environment
maintain a stable internal environment
made up of units called cells
based on a universal genetic code
Answer:
Homeostasis has become the central unifying concept of physiology and is defined as a self-regulating process by which an organism can maintain internal stability while adjusting to changing external conditions.
Explanation:
so the answer is, maintain a stable internal environment
A homeostatic imbalance that activates these bone cells would lead to a loss of bone density.
Answer: Osteoclasts are the bone cells that break down bone. If they were activated more than normal, you should expect to see bone loss.
Explanation:
The functions of the muscles are to provide _____ and movement and to produce select .
Answer:
The functions of the muscles are to provide stability and movement.
Explanation:
And over 600 muscles make up the muscular system, which cooperates to allow the body to operate properly. The primary purpose of the muscular system is to facilitate movement. Muscle contractions enable both rough and precise movement. The majority of bodily muscle action is controlled consciously. However, certain actions—like pulling a hand away from a hot source—are reflexive. Stretching across joints, muscle tendons help keep joints stable. The stabilising function of the muscle tendons with in knee and also shoulder joints is essential.
The abdominal, back, and pelvic muscles make up the core muscles, which also stabilise the body and support activities like lifting weights. Skeletal muscles serve in maintaining the proper posture of the body while an individual is sitting or going to stand. This is referred to as posture.
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The heart is
O lateral; superior
O medial; inferior
O inferior, medial
O superior, inferior
to the arm and
to the cranial cavity.
In the pentose phosphate pathway, which enzyme catalyzes the production of 6-phosphogluconolactone?
Glucose 6-phosphate dehydrogenase (G6PD)
In the pentose phosphate pathway, Glucose 6-phosphate dehydrogenase (G6PD) is the enzyme that catalyzes the production of 6-phosphogluconolactone.
What is the purpose of the G6PD enzyme?An enzyme called G6PD shields your red blood cells from potentially hazardous toxins. Deficiency develops when the G6PD enzyme's gene alters or mutates, rendering the enzyme incapable of defending red blood cells. Additionally, specific foods and drugs might cause G6PD insufficiency.What signs or symptoms indicate a G6PD deficiency?a quick heartbeat.respiration difficulty.urine that is dark or orange-yellow.fever.fatigue.dizziness.paleness.jaundice, also known as a yellowing of the skin and eye whites.Has G6PD an impact on behavior?The males with G6PD deficiencies displayed noticeably increased hyperkinesis, writing issues, aggressiveness, and a clear tendency toward mood swings. The youngsters with G6PD deficiencies also had a higher incidence of speech impairments.To learn more about Glucose 6-phosphate dehydrogenase (G6PD) visit:
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please help me with this question please please
Animals, Plants, and Fungi are multicellular, meaning that they have more than one cell in their body. Each cell also has a nucleus in it, a property which the other two kingdoms, Bacteria and Eubacteria don't have.
Pls give brainliest.
What is the main fuel source for the work of the cell?
glucose
deoxyribose sugar
oxygen
adenosine triphosphate
Answer:
Glucose
Explanation:
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What happens when a virus attacks a cell?
Answer:
the cell gets infected with the virus I think
Explanation:
it will as the virus will spread to the cell so the cell also turns into a virus
A manner of studying human development that stresses the fluctuations that occur constantly throughout life is referred to as the?
A manner of studying human development that stresses the fluctuations that occur constantly throughout life is referred to as the dynamic systems theory.
Human Development- The examination of the chronological events or developments that take place from fertilization to the emergence of the zygote, to the development of the human during pregnancy, from birth through adolescence, and into adulthood.
Zygote- A zygote is the result of the fusion of an egg cell and a sperm cell, sometimes referred to as a fertilized ovum/Egg. In the days after conception, the zygote quickly divides from a single cell at first.
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Igg possesses _______ binding sites for antigen, and the t-cell receptor possesses _______ binding sites for antigen:
2, 1
Igg possesses 2 binding sites for antigen, and the t-cell receptor possesses 1 binding sites for antigen.
How are antigen binding sites are formed?The amino-terminal ends of L and H chains (variable domains) combine to form the antigen binding site. Similar to how the folded domains of the constant regions are formed, the two chains are folded to create globular variable domains, VH and VL.IgG: What Does It Mean?Known as immunoglobulin G, It is an antibody of some sort. Your immune system produces antibodies, which are proteins, to combat pathogens. Your cerebrospinal fluid's levels of IgG are measured using a CSF IgG index. Normally, your cerebrospinal fluid contains very little IgG.What is the role played by IgG in the body?IgG is typically the most prevalent antibody in blood. It guards against infections. Therefore, infections are more likely to affect those with IgG deficiencies. Your body produces unique proteins known as immunoglobulins or antibodies when it senses an attack.When IgG is positive, what happens?The presence of IgG indicates that the infection occurred several weeks to months ago. Additionally, it implies that you might no longer be contagious. IgG suggests that you might have some viral immunity, though you might not.To learn more about IgG visit:
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Which measurement assesses the difference between measured cations (sodium and potassium) and anions (chloride and bicarbonate) in the blood?
The measurement that assesses the difference between measured cations (sodium and potassium) and anions (chloride and bicarbonate) in the blood is known as the Electrolyte test.
What is an electrolyte test?An electrolyte test may be characterized as a type of blood test that significantly acts measures or estimates the level of electrolyte imbalance in the body of an individual.
During the test, the actual level of electrolytes such as salts and minerals are estimated. This includes a variety of substances like sodium, potassium, chloride, carbonate, and bicarbonate ions. These compounds are typically found in the blood and conduct electrical impulses within the body of an individual.
Therefore, the electrolyte test is the measurement that assesses the difference between measured cations (sodium and potassium) and anions (chloride and bicarbonate) in the blood.
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Based on the protein gel, the researcher concludes that the protein is glycosylated. how would the gel most likely appear if the protein were not glycosylated?
Answer: C
Explanation:
Connexus
One of the more serious diseases of the body is renal failure. renal failure occurs when the?
Renal failure occurs when the Kidney's fail to function ar required.
What is renal failure?When your kidneys are suddenly unable to filter waste from your blood, you experience acute renal failure. Dangerous levels of wastes may build up when your kidneys lose their filtering capacity, and your blood's chemical composition may become out of balance. Acute kidney failure, which is often referred to as acute renal failure or acute kidney damage, occurs suddenly, typically within a few days. The majority of cases of acute renal failure occur in patients who are already hospitalized, particularly in severely ill patients who require intensive care. Acute renal failure is serious and needs aggressive care. Acute renal failure, however, might be curable.Learn more about the Renal failure with the help of the given link:
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With sleep deprivation, the levels of leptin __with sleep deprivation, the levels of leptin ________ and the levels of ghrelin ________.______ and the levels of ghrelin ________.
With sleep deprivation, the levels of leptin fall and the levels of ghrelin rise.
What is leptin ?
Your body secretes a hormone called leptin that aids in long-term maintenance of your normal weight. Your blood's concentration of leptin and how much body fat you have are intimately correlated. Despite the fact that your body has enough fat reserves, leptin resistance makes you feel hungry and make you eat more.
What is ghrelin ?
Small amounts of ghrelin are also released by the small intestine, pancreas, and brain. Ghrelin is primarily synthesized and released by the stomach.
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What are the predisposing factors that make some people more biologically reactive than others? (check all that apply.)
Genetic make up and Prenatal experiences are the predisposing factors that make some people more biologically reactive than others
What are predisposing factors ?Predisposing elements are those that increase a child's likelihood of experiencing a problem (in this case, high anticipatory distress). These could include temperament, life experiences, or genetics. A specific incident or trigger that led to the current issue's emergence is referred to as a precipitating factor.
Predisposing traits were observed to include social structure, demographic parameters (age and gender), and (education, occupation, ethnicity, and other factors measuring status in the community, as well as coping and the health of the physical environment),Learn more about Predisposing factors here:
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Match each word to It's correct meaning.
1. carbon dioxide
2. respiration
3. saprophyte
chemical process of cells doing
work; breathing
organism that gets its food from
decaying plants or animals
gas given off in animal respiration
that is absorbed from the air by plants in
photosynthesis
Answer:
and
Explanation:
Carbon doioxide-gas given off in animal respiration
that is absorbed from the air by plants in
photosynthesis.
Respiration - chemical process of cells doing
work; breathing.
Saprophyte-organism that gets its food from
decaying plants or animals
mutation and recombination are the only processes that can increase genetic variation because they are also the only processes that:
Mutation and recombination are the only processes that can increase genetic variation because they are also the only processes that: can produce new alleles.
Recombination is the process or rearrangement of the genes due to crossing over. Crossing over is an event that only occurs during meiosis. This process is essential to produce genetic variations and diversity. In meiosis, this recombination occurs between homologous chromosomes.
Alleles are the alternative forms of a gene. Usually there is only one alternative form but multiple allelic conditions are also possible. The allelic forms occupy similar locus on the two sister-chromatids of the chromosomes.
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The bone that is situated next to the eardrum is called the __________; the bone that sits next to the oval window is called the __________.
The bone that is situated next to the eardrum is called the malleus.
The bone that sits next to the oval window is called the stapes.
Given,
The bone that is situated next to the eardrum is called the __________; the bone that sits next to the oval window is called the __________.
We need to fill in the blanks.
What are eardrums and their parts?The eardrum is a transparent gray membrane and there is a middle ear
bone called the malleus attached to the center part of the drum.
The space inside the ear drum is called the middle ear.
The three smallest bones of the body are found in the middle ear.
They are:
- The hammer (malleus)
It is attached to the eardrum.
- The anvil (incus)
It is in the middle of the chain of bones.
- The Stirrup (stapes)
It is attached to the membrane-covered opening that connects the middle ear with the inner ear (oval window)
Thus
The bone that is situated next to the eardrum is called the malleus.
The bone that sits next to the oval window is called the stapes.
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