According to the research, the correct option is Chromosomes. Chromosomes are threadlike structures made up of strands of deoxyribonucleic acid (dna).
What are Chromosomes?They are filaments or condensed rings of deoxyribonucleic acid that store a large part of the genetic information and appear in a constant number in the cells of each plant or animal species.
In this sense, it is a condensed threadlike structure of DNA featuring the same genes located at the same sites (known as loci).
Therefore, we can conclude that according to the research, the correct option is Chromosomes. Chromosomes are threadlike structures made up of strands of deoxyribonucleic acid (dna).
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The amino acids of the standard 20 contain sulfur atom(s) are _____________; all amino acids found in proteins contain a(n) amino group, except
All amino acids found in proteins contain a(n) amino group, except for proline.
What is amino acid?The building blocks of proteins are called amino acids. The building blocks of life are amino acids and proteins. Amino acids are the byproducts of protein digestion or breakdown. Proteins are created by the human body from amino acids to support the body: Destruction of food
Organic chemicals include amino acids. There are carbon-hydrogen bonds in organic chemicals. There is a basic structure shared by all amino acids. A hydrogen atom, an R-group, or side-chain group, a basic amino group, a carboxylic acid group, and a central carbon atom are all connected to one another by a molecule.
As the components of proteins, amino acids serve this purpose. Most chemical reactions that take place within cells are catalysed by proteins.
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How do we prevent the extinction of certain animals?
Answer:
by controlling climate change
Explanation:
If we stop climate change, the trees won't be dried meaning no wild fires.
The nurse is teaching a community health class about the immune system. the nurse asks the class to list various functions of b-cells in immunity. which responses by students are correct?
There are various functions of B-cells in immunity:
B cells create a type of protein (antibodies) that is beneficial to the immune system.Antibodies bind to pathogens or to foreign substances, such as toxins, bacteria, and viruses to neutralize and fight them.Prevents pathogens from entering a normal cell and causing infection.B cells can also recruit other cells to help destroy an infected cell.The immune system is a complex network of organs, cells and proteins that defends the body against infection, and protecting the body's own cells. The immune system records every germ (bacteria, viruses, and fungi, and toxins) that is ever defeated, in order to recognize and destroy them if they come back.The are two cells that are involved in these works, those are The T and B lymphocytes (T and B Cells).Learn more about the Immune System here https://brainly.com/question/6612564
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How do cnidarians in the medusa form move
through the water?
A. the gastrovascular cavity fills with water and allows them to float
B. their tentacles spin causing a propeller motion
C. the tentacles move along the ocean floor like feet
D. water is brought into the gastrovascular cavity and then expelled which propels them forward
Answer:
Explanation:
The medusa is a free-swimming form; it moves by rhythmic muscular contractions of the bell, providing a slow propulsive action against the water. The other principal body type of the adult cnidarian is the polyp, a stalked, sessile (attached) form.
Hope this helps :)
The cell wall of plants is
composed of what material?
A. cellulose
B. chitin
C. peroxisomes
Many drugs that reach the developing fetus or embryo can cause death or congenital defects. what are examples of congenital defects? select all that apply.
• Skeletal and limb abnormalities
• Central nervous system alterations
• Heart defects
These are applicable in examples to many drugs that reach the developing fetus or embryo can cause death or congenital defects.
What is meant by congenital defects?A congenital anomaly is a morphological or functional abnormality that appears during intrauterine life.These illnesses, which are also known as birth defects, congenital disorders, or congenital abnormalities, arise during pregnancy and can be detected before or at birth as well as later in life.What kinds of flaws are instances of congenital?Cleft lip and palate are typically discovered during standard prenatal screenings.congenital heart disease, which might include a hole in the heart, a valve issue, or a blood vessel issue. Usually identified in the first few years of life, cerebral palsy.Each of the medications or drug classes listed below has the potential to give birth to abnormalities in an unborn child:ACE inhibitors (angiotensin converting enzyme).antagonist of angiotensin II.alcoholcocaine isotretinoin (an acne medication) (an acne drug)high vitamin A dosages.lithium.To learn more about congenital defects visit:
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how will different additives affect hydrogen bonds between different water molecules (soap, sugar, oil)? CER question
Soap is a surfactant, or a compound that lowers the surface tension of a liquid. Soap, in particular, decreases the surface tension of water by weakening the hydrogen bonds that make water such a special substance.
The three sugars interacted with water molecules in different ways. Mannose, the least sweet of the sugars, formed longer and weaker hydrogen bonds with water than glucose or fructose. Fructose, the sweetest of the sugars, formed the shortest and strongest hydrogen bonds with water.
Oil molecules, however, are non-polar, and they can't form hydrogen bonds. If you put oil and water in a container, the water molecules will bunch up together and the oil molecules will bunch up together, forming two distinct layers.
What is the bond called between the two different types of atoms of water?Opposites attract, so this lopsided charge difference allows bonds to form between the hydrogen and oxygen atoms of adjacent H2O molecules. Each H2O can bind to a maximum of four neighbors through these so-called hydrogen bonds.
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Pasteur demonstrated that yeasts and bacteria each produce specific metabolic products such as alcohols and organic acids by a process known as?
Pasteur demonstrated that yeasts and bacteria both engage in the fermentation process, which results in the production of particular metabolic products such alcohols and organic acids.
Describe fermentation:Through the activity of enzymes, fermentation is a metabolic process that results in chemical changes in organic substrates. Biochemistry specifically refers to the process of producing energy from sugars without the oxygen being present.
What is fermentation's primary purpose?All living cells contain the molecule NADH, which fermentation mostly does by converting it back into the coenzyme NAD+ so that it can be used once more. Glycolysis is the process by which glucose is dissolved in the presence of enzymes to release energy.
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What disease is a major problem in sub-saharan africa, causing death and leaving many children orphaned?
Among the main causes of disease burden in Sub-Saharan Africa have historically been communicable illnesses including malaria, TB, and HIV.
A transmittable/communicable disease is one that can be transferred from one person to another via a variety of routes, such as contact with blood or body fluids, inhaling an airborne virus, or being bitten by an insect. Sub-Saharan Africa accounted for about 80% of the 3 million HIV/AIDS-related fatalities worldwide by the end of 2002, drastically reducing life span and leaving millions of orphans in its wake. There were seven nations where the prevalence of HIV was higher than 20%.
Making sure our food and water are safe, avoiding ill people, and using safe sex techniques are all significant methods to reduce or stop the spread of communicable disease.
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define graph in earth science
Answer:
A graph in earth science is a picture that represents data or specific sets of data in a helpful way.
Within eukaryotic cells, which organelle is surrounded by a double membrane and carries the coding that determines protein synthesis?
Within eukaryotic cells, Nucleus is surrounded by a double membrane and carries the coding that determines protein synthesis.
Nucleus- In terms of genomics, a nucleus is the organelle inside a cell that is membrane-enclosed and houses the chromosomes. The nuclear membrane has a variety of pores that enable the selective transit of certain molecules (such proteins and nucleic acids) from and to the nucleus.
Genomics- In order to understand the structure and function of these sequences and of the ensuing biological products, genomics is the study of all or a portion of an organism's genetic or epigenetic sequence information.
Protein Synthesis- The primary process by which amino acids are disposed of is protein synthesis.
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Bloodletting, a treatment devised centuries ago to restore the balance of humors, was accomplished with the use of?
Bloodletting, a treatment devised centuries ago to restore the balance of humors, was accomplished with the use of leeches.
What does bloodletting serve?Bloodletting was the term used to describe the removal of blood for medical reasons.It was believed to cure a number of illnesses and rid the body of filthy fluids.Blood was initially extracted by cutting an artery or vein, typically at the elbow or knee, to remove the diseased blood.Taking blood from a patient in order to cure or prevent disease is known as bloodletting.Bloodletting was founded on an outdated medical theory that saw blood and other bodily fluids as "humours" that needed to be kept in the proper balance to maintain health, whether it was performed by a doctor or a leech.To learn more about Bloodletting, refer to the following link:
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What is the opposite of photosynthesis?
- carbon fixation
- glycolysis
- aerobic respiration
- anaerobic respiration
Answer:
aerobic respiration and glycolysis
Anatomy and physiology:
Necessary life functions and survival:
Body systems work together to complete the ____ necessary for ____ These functions provide the items needed for the ____ of the whole organism.
According to the research, the correct options are functions, life and survival. Body systems work together to complete the functions necessary for life. These functions provide the items needed for the survival of the whole organism.
What are Body systems?It is the set of organs that make possible the functioning of basic biological functions, which are responsible for carrying out survival and reproduction processes.
In this sense, the organs interact with each other, carrying out functions necessary for life together and forming the systems and apparatus of the human body, whose proper functioning keeps us alive.
Therefore, we can conclude that according to the research, the correct options are functions, life and survival. Body systems work together to complete the functions necessary for life. These functions provide the items needed for the survival of the whole organism.
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For men, what is the average portion size of protein dense foods with each meal?
two palm-sized portions
The average portion size of protein dense foods with each meal two palm-sized portions.
Use a serving the size of your palm for foods high in protein, such as meat, fish, eggs, dairy, or legumes. With each meal, we advise guys to eat two palm-sized portions. In addition, we advise women to have one palm-sized quantity with each meal.Why is it crucial to have physical fitness objectives?Your route to wellbeing must include fitness goals. Setting objectives can help you push through the most challenging times to make a change that will stay longer, hold yourself more accountable, and demonstrate to yourself what you are capable of.What foods contain the most protein?proteins in foods
Kangaroo, beef, lamb, veal, and other lean meats.Birds of the bush, include chicken, turkey, duck, emu, and duck.prawns, crab, lobster, mussels, oysters, scallops, clams, and fish are all examples of seafood.eggs.dairy items, such as milk, cheese, and yoghurt (particularly Greek yoghurt) (especially cottage cheese)To learn more about proteins visit:
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One of the molecules involved in coupling anabolism (i.e., harvesting energy from precursors) to catabolism (building macromolecules) in living systems is:__________
Hormone is one of the molecules involved in coupling anabolism to catabolism in living systems.
Hormone is described as an organic molecule released by both plants and animals that controls physiological processes and sustains homeostasis. Hormones work by inducing responses in particular organs or tissues that have been developed to respond to very small amounts of them. Anabolism is the process that helps the body create the molecules it needs; it typically needs energy to be finished.
The act of breaking down large molecules into smaller ones is referred to as catabolism, and it typically results in the release of energy for use by the organism. The two processes take place in the presence of chemical molecules known as hormones. Estrogen, testosterone, insulin, and growth hormone are examples of hormones responsible for anabolism, while adrenaline, cortisol, glucagon, and cytokines are examples of hormones responsible for catabolism.
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Which part of the scientific method is best illustrated by the
ecologists wondering why the prairie dog populations are in
decline?
O collecting data from an experiment
O drawing conclusions based on data
O setting up an experiment
O making an observation and asking a question
Answer:
b drawing conclusions based on data
When a natural system gets locked into a positive feedback loop, it can reach an ecological tipping point.
true
false
The statement when a natural system gets locked into a positive feedback loop, it can reach an ecological tipping point is TRUE.
What is a positive feedback loop?A positive feedback loop can be defined as any feedback of a system (e.g., biological system) that increases the first outcome triggered by a particular stimulus condition, which can be represented by environmental and/or ecological conditions such as, among others, temperature or light.
In conclusion, the statement when a natural system gets locked into a positive feedback loop, it can reach an ecological tipping point is TRUE.
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A hormone often measured in saliva by researchers as a biological marker of stress is called:____.
A hormone often measured in saliva by researchers as a biological marker of stress is called cortisol.
Cortisol is a steroid hormone that belongs to the glucocorticoid hormone class. It is known as hydrocortisone when taken as medicine. It is primarily produced by the zona fasciculata of the adrenal cortex in the adrenal gland in various mammals. It is produced in lesser amounts in other tissues. If you have an adrenal nodule (mass) or a pituitary tumor in your brain, your body may overproduce cortisol. Cushing syndrome is a condition that may result from this. It can cause diabetes, rapid weight gain, easily bruised skin, weak muscles, and a host of other health issues.
Stress causes a spike in cortisol levels, and cortisol has been proven to occasionally be linked to negative emotions.
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What are the two MAJOR types
PROKARYOTIC cells?
of
A. plant and animal
B. plants and animals
C. archaea and bacteria
Answer:
C. Bacteria and archaea
Explanation:
Bacteria and archaea are the two types of prokaryotes.
Which term is used to describe an objectively identifiable aberration of the disease?
a. syndrome
b. symptom
c. sign
d. stage
Option (c) sign is the correct answer.
The term used to describe an objectively identifiable aberration of the disease is sign.
What does a sickness sign entail?Any objective proof of a sickness, as opposed to a symptom, which is always a subjective indication. For instance, obvious blood in the stool is an indication of sickness that can be identified by the patient, doctor, nurse, or another person.What are the many types of aberration?An aberration is a flaw in how a lens concentrates the light it gathers. Because the light rays travelling through a lens don't converge at a single spot, aberrations happen. Aberrations come in a variety of forms, and they can impact an image's sharpness, focus, magnification, distortion, and color.To learn more about aberration visit:
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Drugs that selectively stimulate contraction of the myometrium are known as _______________.
Drugs that selectively stimulate the contraction of the myocardium are known as oxytocic agents.
What is myocardium?The myocardium is the middle layer of the heart. It is the thickest layer between the single-layer endocardium and the outer epicardium. The myocardium is composed of cardiomyocytes.
The function of the myocardium is to facilitate the contraction and relaxation of the heart walls. It helps in the conduction of electrical stimuli.
Cardiac muscles are under to stimulate digoxin, dopamine. Cardiostimulatoy drug stimulate and enhances cardiac function increasing heart rate. Hypertension, Angina, myocardial infraction, and heart failure are some of the disorders related to the heart.
Therefore, Drugs that selectively stimulate the contraction of the myocardium are known as oxytocic agents.
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Which is true about a neuron with a large diameter, myelinated axon as compared to a neuron with a small diameter, unmyelinated axon?
The true statement about a neuron with a large diameter, myelinated axon is that it conducts faster impulses than the small diameter, unmyelinated axon.
A neuron is the nerve cell that conducts signals from the brain to the whole body and vice versa. The structure of the nerve cell comprises of a cell body with the hair-like dendrites emerging from it. One side of the nerve cell has a long axon that ends at the axon terminal.
Myelinated axon is the one that that is covered by myelin sheath all along its length. The sheath is composed of proteins and lipids. The myelinated axon conducts faster signal because the impulses jump upon the sheath rather than covering the whole length of the axon.
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What is the hybridization of the central atom in the xenon tetrafluoride molecule?
The central atom has 6 electron pairs out of which two are lone pair electrons. The hybridization in Xenon is sp3 d2 because there is a migration of two electrons of p to d orbital which results in the formation of a sigma bond with F.
What is meant by hybridization?Whenever two atomic orbitals in a molecule merge to generate a hybrid orbital, the energy of the orbitals of the single atoms is redistributed to give orbitals of equivalent energy. Hybridization is the name of this procedure. In the hybridization process, atomic orbitals with similar energies are mixed together; this often includes the fusion of two s orbitals, two p orbitals, or the mixing of an s orbital with a p orbital or a d orbital.
Hybrid orbitals are the novel orbitals that result from this process. However, hybrid orbitals are also very helpful in describing the geometry of molecules and the characteristics of atomic bonds. Let's immediately examine the example of an atom of carbon. This atom creates four single bonds in which three valence-shell p orbitals and one valence-shell s orbital combine.
The result of this combination is the creation of four comparable sp3 mixes. Around the carbon, which is bound to four distinct atoms, they will be arranged in a tetrahedral pattern.
Therefore, the molecule has sp3 d2 hybridization.
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When a body has had adequate rest and no food for at least 12 hours, it is said to be in?
When the human body has had adequate rest and no food for 12 hours, it is said to be in the basal state.
What is the basal state?The phrase "basal metabolic rate" (BMR) refers to the overall level of activity of a person's body metabolism as measured by his oxygen consumption in the basal state, which is when the person is completely at rest but not asleep, 14 to 18 hours after eating. The body's oxidative process is more active and the rate of metabolism is higher the more oxygen is used in a certain period of time.
The general metabolic state during treatment has been measured using the BMR. Since thyroid hormones are the main regulators of tissue oxidation and metabolism, BMR measurements were once frequently used to evaluate thyroid function. However, with the development of radioactive-isotope tests and thyroid hormone studies, their use has decreased.
Therefore, the body is said to be in the basal state.
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Which diagnostic tests aid in the diagnosis of cystic fibrosis?
Diagnostic tests aid in the diagnosis of cystic fibrosis is a
genetic test that looks for chromosomal abnormalities linked to cystic fibrosis (CF) is frequently performed in addition to a sweat test, which analyzes the quantity of chloride in sweat.
What is a sweat test?An example of a sweat test. The sweat test measures the amount of chloride, a component of perspiration related to salts. There are no needles used in this test. A colorless, odorless chemical (pilocarpine) and a little quantity of electrical stimulation are administered in the first step of the test to activate the sweat glands in a small region of the arm or leg to produce perspiration.
There may be some warmth or tingling there. This part of the exam takes around five minutes. The perspiration is then collected on a piece of gauze, filter paper, or a plastic coil. This process takes 30 minutes. In a medical lab, the quantity of chloride in the collected perspiration is measured.
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Regulation of heart rate, blood pressure, and digestive functions are carried out by the ______________________.
Regulation of heart rate, blood pressure, and digestive functions are carried out by the autonomic nervous system
What is autonomic nervous system?
The peripheral nervous system's autonomic nervous system (ANS), originally known as the vegetative nervous system (VNS), provides smooth muscle and glands, which in turn affects how internal organs work. The autonomic nervous system is a control system that regulates body processes like the heart rate, digestion, respiratory rate, pupillary response, and urination mainly subconsciously. The fundamental mechanism in charge of the fight-or-flight response is this system.
Through the brainstem, the spinal cord, and the organs, integrated reflexes control the autonomic nervous system. Control of respiration, cardiac regulation (the cardiac control center), vasomotor activity (the vasomotor center), and other reflex acts including coughing, sneezing, swallowing, and vomiting are all examples of autonomic functions.
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The function of microvilli, often seen on the apical membrane of transporting epithelia, is to?
The function of microvilli, often seen on the apical membrane of transporting epithelia, is to increase the cell's surface area.
Microvilli are tiny finger-like projections that are a bunch of cross-linked actin fibers. They are present in almost all types of cells. Usually, microvilli have a diameter within the range of 50-550 nm. The absence of the basal body distinguishes microvilli from cilia and flagella.
The primary function of microvilli is to increase the cell's surface area which results in improved absorption the food and water molecules and secretion. Therefore, microvilli play an essential role in digestion by expanding the absorbing surface about 25 times. Transport proteins are present on the microvillus membrane, which play an essential role in the transporting of amino acids and sodium ions.
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Virtually all chemical changes that take place in cells require ________, molecules that greatly increase the rate at which a chemical reaction occurs.
Virtually all chemical changes that take place in cells require enzymes, molecules that greatly increase the rate at which a chemical reaction occurs.
Enzymes are the biological catalysts. these are actually proteinaceous in nature. They are known to increase the rate of a reaction. This is done by lowering the activation energy of that reaction. Almost all the reactions of the body require enzymes.
A chemical reaction is actually a chemical change in the structure of a molecule, called reactant to yield another molecule called the product. These reactions can occur spontaneously or with the help of enzymes.
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The cells in this part of a plant form long, vertical tubes. What is the most
likely relationship between the structure and function of these specialized
cells?
The correct answer is the tubes allow water and nutrients to be transported throughout the plant.
Transport of water, nutrients, and photosynthates is made easier by the structure of a plant's roots, stems, and leaves. The primary tissues causing this movement are the phloem and xylem. How water and nutrients are carried in plants is influenced by water potential, evapotranspiration, and stomatal control. We must first comprehend the energetics of water potential in order to comprehend how these processes function.
An ordered function is carried out by a group of cells with a similar shape in plant tissues. The dermal, vascular, and ground tissues are the three primary tissue types that make up plant tissues.
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