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 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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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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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 do total lunar eclipses occur?(1 point) infrequently during the full moon infrequently during the full moon infrequently during the new moon infrequently during the new moon every month during the full moon every month during the full moon every month during the new moon
Lunar eclipses occur infrequently during the full moon. They do not occur during the new moon and do not occur every month.
Eclipses occur when the sun, moon and earth are perfectly aligned in a straight line. Depending on which body comes in the middle of the alignment, eclipse can be divided into solar and lunar eclipse.
A lunar eclipse occurs when the earth comes in between the sun and the moon in a straight line. Direct sunlight is blocked off by the earth, however, deflected light from the earth reaches the moon, giving it hues of red, brown and grey. It only occurs when the moon is at the lunar node (points where the moon crosses the earth's orbital plane). This rarely occurs because the orbital path of the moon around the earth is inclined at an angle of 5°, so it's not possible to see a lunar eclipse every month.
Lunar eclipse only happens when the moon is full because it is only during the full moon that the moon can be positioned behind the earth. One is more likely to see a solar eclipse during the new moon.
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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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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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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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When a gardener crosses a plant with red flowers with a plant with yellow flowers, orange-flowered offspring result. what mode of inheritance is exemplified by these flowers?
Incomplete dominance mode of inheritance is exemplified by these flowers.
Incomplete Dominance- When both alleles of a gene are only partially expressed at a locus, a phenomenon known as incomplete dominance occurs, which frequently produces an intermediate or distinct phenotype. As partial domination, it is also known. For instance, the red allele is dominant over the white allele in roses.
Phenotype- An observable characteristic is simply referred to as a "phenotype." Pheno, which has the same origin as the term "phenomenon," simply means "observe." It may therefore refer to anything from a common attribute, like height or hair color, to the presence or absence of a disease. It is also an observable kind of an organism.
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What is the opposite of photosynthesis?
- carbon fixation
- glycolysis
- aerobic respiration
- anaerobic respiration
Answer:
aerobic respiration and glycolysis
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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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.
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Explain the process and bonds involved in the ability of RNA to fold into complex 3-D shapes, similar to those of tertiary proteins.
RNA molecules fold into complex 3-D structures when base pairing occurs between nitrogen base pairs. The bonds forned are hydrogen bonds.
What are RNA molecules?RNA molecules refers to nucleic acids which are built from ribose sugar molecules instead of deoxyribose as in DNA molecules.
RNA molecules as in DNA are composed of a sugar backbone, a nitrogenous base, and phosphodiester linkages.
The nucleotides found in RNA molecules are:
uraciladeninecytosine andguanineRNA is able to form complex 3-D structures even though they are single-stranded because of base pairing that occurs between adenine and uracil, and guanine to cytosine.
The bonds present in thebase pairs are hydogen bonds.
Hydrogen bonds are bonds which are formed between hydrogen and a highly electronegative atom such oxygen, nitrogen, chlorine, and fluorine.
In the RNA molecule, hydrogen bonds form betweenthe oxygen and nitrogen atoms of the either uracil, adenine, cytosine, or uracil.
These hydrogen bonds results in three-dimensional structures of RNA.
In conclusion, RNA molecules are single-stranded nucleic acids materials.
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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.
An amoeba is a unicellular organism that takes in food by endocytosis. The
cells store small food particles in food yacuoles until they can be digested.
Which cell organelles must fuse with the food vacuoles so that an amoeba
can digest its food?
A. Lysosomes
B. Ribosomes
C. Nuclei
D. Mitochondria
SUBMIT
The cell organelles must fuse with the food vacuoles so that an amoeba
can digest its food is option A. Lysosomes.
A lysosome is a membrane-certain cellular organelle that incorporates digestive enzymes. Lysosomes are worried about numerous mobile techniques. They spoil extra or mobile elements. they may be used to damage invading viruses and microorganisms.
Lysosomes are worried about diverse cell processes. They spoil extra or cellular elements. they may be used to destroy invading viruses and microorganisms. If the cellular is broken past restore, lysosomes can help it to self-destruct in a manner called programmed cell demise, or apoptosis.
An amoeba regularly called an amoeboid, is a type of cellular or unicellular organism which has the ability to modify its form, frequently with the aid of extending and retracting pseudopods. Amoebae do not shape an unmarried taxonomic group; as an alternative, they are found in each fundamental lineage of eukaryotic organisms.
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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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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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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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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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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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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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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
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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The cell wall of plants is
composed of what material?
A. cellulose
B. chitin
C. peroxisomes
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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Two requirements are usually necessary for an organism to become fossilized: ______.
An organism must typically meet two conditions in order to become fossilized:
1) Organisms require hard parts like shells, teeth, cartilage, and bones.
(2) The organic material needs to be buried as soon as possible in a place that is oxygen-free and protected from scavengers.
Exactly who is a scavenger?An organism known as a scavenger primarily consumes decaying biomass, such as animal or plant matter that has gone bad. A lot of scavengers are carnivores, which are creatures that consume meat.
What are four examples of scavengers?Among the land scavengers are wolves, hyenas, jackals, and bears. Scavengers can be found in the air, including vultures, crows, ravens, and condors. In water, scavengers include lobsters, crabs, and several shark species.
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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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A cancer drug interferes with the development of mitotic spindle fibers during cell division. which phase is directly affected?
A cancer drug interferes with the development of mitotic spindle fibers during cell division prophase phase is directly affected.
Which cells undergo mitotic?Only eukaryotic cells go through mitosis. Binary fission is a distinct technique used to split prokaryotic cells, which are cells without nuclei. Different organisms go through different stages of mitosis.
Why is mitotic important?Multicellular creatures depend on mitosis to produce new cells for growth and to replace damaged or worn-out cells, such as skin cells. Many single-celled organisms use mitosis as their primary asexual reproduction method.
What are the four roles that mitotic plays?Tissue replacement or repair.Organismal growth.Unmarried reproductionDevelopment (of embryos)To know more about Mitotic visit:
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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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