which one of the following organisms has a cell wall? group of answer choices l forms protoplasts animal cells fungi mycoplasmas

Hemophilia, cystic fibrosis, muscular dystrophy, B-thalassemia, and Barth syndrome are diseases that the CRISPR-Cas9 system may be able to treat.

Using the revolutionary CRISPR-Cas9 technology, geneticists and medical researchers can edit specific areas of the genome by deleting, adding, or modifying specific DNA sequences.

It is causing a stir in the scientific community because it is currently the most straightforward, adaptable, and precise method of genetic manipulation. CRISPR-Cas9 is based on a naturally occurring genome editing technology used by bacteria as an immune response. Infected bacteria snare small pieces of viral DNA and splice them into their own DNA in a predetermined sequence to form CRISPR arrays.

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Once the femoral vein passes superior to the inguinal ligament, it is renamed the external iliac vein​.

The femoral vein then terminates and becomes the external iliac vein just behind the inguinal ligament, a tough strip of tissue that serves as a barrier between the thigh and the pelvis. 5 Blood then drains into the common iliac vein and, eventually, the heart.

Blood flows from your popliteal vein into your femoral vein. The popliteal vein is formed by veins in your lower leg that connect below your knee.

To distinguish it from the deep femoral vein, it is sometimes referred to as the superficial femoral vein. This word, however, is deceptive and rarely used due to the vessel's location deep into the thigh. Just below the knee, the femoral vein is a direct continuation of the popliteal vein.

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The glycocalyx serves all the following purposes, WITH the exception of binary fission.

Numerous crucial physiological processes, such as vascular permeability, inflammation, blood coagulation, as well as the production of nitric oxide, depend on the glycocalyx in the BBB.

The glycocalyx, a dense meshwork resembling gel, surrounds the cell and serves as a protective border for anything trying to enter. For instance, it has been determined that the glycocalyx is crucial in preventing pathogens from entering the cell.  It also takes part in the revolution of particular cell types. Glycolipids and glycoproteins form a viscous coating on the cell membrane that lubricates and protects it.

(Functions of the glycocalyx include all of the following EXCEPT

a. binary fission.

b. protection against dehydration.

c. biofilm formation.

d. source of nutrition.

e. increased virulence.)

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Even though natural selection is a potent force behind biological  evolution, it is only one of many potential causes. Particularly in smaller populations, some genes or traits develop randomly, for example through genetic drift.

Three straightforward conditions—variation, inheritance, and disparate reproductive success—will inevitably lead to evolution via natural selection. Natural selection works on the phenotypic differences between the individuals in a population rather than the genotypes themselves.

Reproduction, heredity, variation in organism fitness, and diversity in individual traits among population members are the four prerequisites for natural selection to take place. Natural selection takes place automatically if they are met.

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Question:-

Which of these factors are required for biological evolution to occur? Select all that apply.

genetic variation in the population

natural selection

variation in acquired traits among individuals in the population

a large population

many generations

Amino acids are covalently coupled to particular adapter molecules during activation. The transfer RNA molecules serve as the adapters (tRNA).

Rrna (tRNA) molecules transport amino acids into the ribosomes all through protein synthesis, while messenger Oligonucleotide (mRNA) molecules carry this same coding sequences for synthesis of proteins. Ribosomal Monoclonal (rRNA) molecules make up the core of the a cell's ribosomes, which are the structures wherein protein synthesis occurs.

Transfer RNAs, also known as tRNAs, are molecules that serve as amino acid carriers, carrying the correct amino acids to a ribosome (the place where proteins are made) in accordance with the RNA Molecule (mRNA) genetic material.

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The fatty acids found in bacterial phospholipids are a mix of saturated and unsaturated fatty acids.

Bacteria membranes may contain a mixture of saturated and unsaturated fatty acids. There are some phospholipids, such as cardiolipin, that are unique to bacteria. In Gram-negative bacteria, phospholipids are major components of the inner membrane and the inner leaflet of the outer membrane, playing an essential role in forming the unique dual-membrane barrier to exclude the entry of most antibiotics.

In contrast to unsaturated fatty acids, which have at least one double bond in the fatty acid chain, saturated fatty acids have no double bonds between the individual carbon atoms.

Unsaturated fats are often liquid and come from plants, whereas saturated fats are normally solid at room temperature and come from animal sources.

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Answer:

Explanation: Moving substances against a concentration gradient is something that gets performed.

The brain is the body's most complex organ (or organ system). The human brain is a very intricate organ.

The brain is the body's most intricate organ (or organ system). The structure of the human brain is extremely intricate.

It is made up of about 100 billion neurons and a trillion neuroglia (supporting cells). In the brain, there are typically 10,000 connections between each neuron.

The brain is the most intricate organ in the human body. The human brain contains about 86 billion neurons, all of which are active. To create circuits and exchange information, each neuron communicates with a large number of other neurons.

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Cardiac ischemia is a state in which heart muscle has less oxygen and blood. A heart attack, also referred as a myocardial infarction, is when ischemia causes injury to or death of a portion of the heart muscle

Only muscle the body's tissue has the capacity to contract, which allows it to move other body components. The second purpose of the muscular system is preservation of body posture and position, which is connected to the first purpose of movement.

The three different forms of muscle cells are skeletal, smooth, and cardiac. Cardiac muscle cells can be found in the heart's walls, where they may be seen as being striped (or striated) and controlled by an involuntary process.

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If the allele for white wool (w) has an allele frequency of 0.19 and the allele for black wool (w) has an allele frequency of 0.81, then the percentage of heterozygous individuals in the population would be 32%.

This is calculated by taking the sum of the two allele frequencies (0.19 + 0.81 = 1.0) and then multiplying by the frequency of the dominant allele (0.19 * 1.0 = 0.19) and then subtracting that from 1.0 (1.0 – 0.19 = 0.81).

This would give you the frequency of the heterozygous individuals (0.81) and then you can divide that by 1.0 to get the percentage (0.81 / 1.0 = 0.81 = 81%).

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The major differences in the methods of classification include the weight of characters, their origin, and variation, which can be used to classify living and nonliving things.​

The methods of classification make reference to the strategies to categorize things or organisms in the case of biological methods such as the Linean biological classification based on morphology.

Therefore, with this data, we can see that the methods of classification are used to order things which may also include biological methods based on genetic variation, morphology and evolutionary features.

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The semicircular canals communicate with the brain by sending signals indicating the direction and rate of rotation of the head, such as when nodding or glancing from right to left.

The endolymph in the canals opposes movement when the head starts to spin. The endolymph is pushed against the cupula by this inertial resistance, causing it to bend until the endolymph starts to move at the same speed as the head.

Our experience of balance and equilibrium is made possible by the acceleration of endolymph in specific vestibular apparatus areas [7]. This happens when you move your head, which causes endolymph, a specialized fluid, to move hair cells.

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Option c is Correct. The following stimuli are all under the control of homeostasis in living beings. Homeostatic regulation, which involves three components or mechanisms.

The receptor, the control center, and the effector—adjusts physiological systems within a body. The receptor is informed that something is changing in the surroundings.

These include the pituitary gland, which aids in the regulation of hormones, our kidneys, which control water and ion levels, and the pancreas, which controls blood glucose through the secretion of insulin, a hormone that lowers blood glucose levels.

Fluids and electrolytes, energy and nutrition, and immune response mediators are three elements that affect homeostasis. The sodium-potassium pump is altered as a result of cellular damage, which disturbs the equilibrium of fluid and electrolytes.

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Eukaryotes are organisms whose cells consist of a nucleus and another membrane-bound organelles. There is a wide variety of eukaryotes, including all animals, plants, fungi, protists, and most algae.  Eukaryotes are either unicellular or multicellular.

In general, proteins or RNA constitute organelles that are not membrane bound. All cells contain non-membrane-bound organelles, but only eukaryotic cells contain membrane-bound organelles. Both membrane-bound and non-membrane-bound organelles perform essential cellular functions and are surrounded by cell membranes. Eukaryotic cells are cells that contain membrane-bound organelles and form the basis of both unicellular and multicellular organisms. In contrast, prokaryotic cells have no membrane-bound organelles and are always part of unicellular organisms.  

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Answer:

Mitochondria is known as the powerhouse of the cell.

Genetic variation is caused by crossing over during meiotic prophase I. The exchange of genetic material between non-sister chromatids of homologous chromosomes takes place during prophase I.

The exchange of genetic material between non-sister chromatids of homologous chromosomes, or crossing-over, takes place during prophase I. Remember that homologous chromosomes align in pairs, gene for gene down their whole length, generating a configuration with four chromatids known as a tetrad during prophase I.

Crossover occurs during prophase I and adds genetic diversity by exchanging homologous chromosomal segments. Independent assortment, which considers how the homologous chromosomes line up, adds more genetic variety.

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A phenotype's genetic basis, which includes homozygous DNA contributions from both parents.

A "phenotype" is a general term for an identifiable trait. Pheno simply means "observe" and shares the same root as the word "phenomenon." As a result, it can relate to anything, including the existence or absence of a sickness, as well as a common characteristic like height or hair color. It is also a type of organism that can be observed.

Phenotypes are often used to describe differences in DNA sequence across individuals who have various qualities, such as height, hair color, illness, or anything else. But it's important to remember that sometimes environmental factors may have a bigger influence on phenotypes than genetic causes. Thus, there may or may not be a direct connection between a genotype and phenotype.

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The sentence D: Two cells, but half the size best describes what this organism will look like at the end of it's growth period.

The mitotic phase of the cell cycle makes reference to the period in which the cell divides to form two genetically identical cells which will be approximately half size when compared to the parental cell.

Therefore, with this data, we can see that the mitotic phase of the cell cycle divides the parental cell to generate two genetically identical daughter cells.

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Ediacaran animals differ from Cambrian animals in a way that the descendants of Cambrian animals still resemble their ancestors while those of Ediacaran animals are not even found living on the planet.

Compared to Cambrian animals, Ediacaran species are different. Not all Ediacaran animals resemble life as it is known today, in contrast to the Cambrian creatures, whose descendants can still be found in the world today. Scientists have been baffled by these organisms for a very long time since they can be understood in so many different ways.

A time interval of 635 to 540 million years ago is known as the Ediacaran. It came before the Cambrian epoch, which began between 540 and 485 million years ago and saw one of the greatest booms of life on Earth. For a very long time, scientists believed that multicellular life first proliferated during the Cambrian era. It is the time when the majority of the known animal species that scientists now recognize initially appeared.

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The highest amplitude receptor potential will be induced in the Pacinian corpuscle by a moderate-intensity pressure modality.

Skin and fascia's lamellar corpuscles, also called Pacinian corpuscles, are sensitive to quick vibrations (of about 200–300 Hz). Cutaneous mechanoreceptors react to pressure and vibration, two examples of mechanical stimuli that occur from physical contact. Pacinian corpuscles are deep, quickly adapting sensors that react to high-frequency vibration and deep pressure.

One of the four main types of mechanoreceptors (specialized nerve endings with adventitious tissue for mechanical sensing) found in mammalian skin is the Pacinian corpuscle, also known as the lamellar corpuscle or the Vater-Pacini corpuscle.

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Tay Sachs causes lysosomes to flood with fatty debris, which harms and ultimately kills nervous system cells by the time a child reaches the age of four.

Proteins, nucleotides, carbohydrates, and lipid may all be broken down by the variety of enzymes found in phagosome, tissue organelles.

In addition to dissolving biologic polymers, proteolytic enzymes also play a role in the counting of expelled materials, metabolism, cell signaling, and cell membranes repair.

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Statements the bond between oxygen and hydrogen in water (H2O), electrons are not equally shared by the atoms in a covalent bond, and one atom has a partial negative charge, and the other atom has a partial positive charge make reference to polar bonds, while electrons are equally shared between atoms in a covalent bond and The bond between hydrogen atoms in diatomic hydrogen (H2) make reference to non polar bonds.

In chemistry, the term polar bond makes reference to the sharing of elections between atoms in a molecule that form regions with differential positive and negative charges.

Therefore, with this data, we can see that polar bonds depend on electrical charges in different areas of the molecule.

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Answer:

Peptide bonds

Explanation:

Peptide bonds made of different sequences of amino acids.

During cellular respiration, most of the calories in the hard-boiled egg are converted to ATP (adenosine triphosphate), which is the primary source of energy for cells.

Cellular respiration is the process by which cells break down glucose (and other energy-rich molecules) and convert it into ATP. The energy stored in ATP is then used by the cells to perform various functions, such as maintaining membrane potential, synthesizing proteins, and driving muscle contraction.

In the case of the hard-boiled egg, the calories contained in the egg yolk and egg white are broken down into glucose and other energy-rich molecules by the digestive process. These molecules are then transported into cells, where they undergo cellular respiration and are converted into ATP.

The ATP produced in this process is then used to power the cells, providing the energy necessary for normal cellular function.

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The major reservoirs of the carbon cycle are atmosphere, oceans, sediments, terrestrial biosphere. The correct option is C.

The exchange of carbon between the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth occurs through the carbon cycle, a biogeochemical cycle.

Both biological substances and many minerals, including limestone, mostly consist of carbon.

The lithosphere, hydrosphere, biosphere, and atmosphere are the four main reservoirs that can be used to represent the Earth's processes.

Thus, the correct option is C.

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a) Nutrients from the digestive system

c) Oxygen from the lungs

d) Nitrogenous wastes from the kidneys.

The majority of the blood is made up of plasma, a yellow liquid. It supports the body's pH balance, blood volume, blood pressure, immunity, and blood coagulation. Additionally, it is essential for the movement of hormones, minerals, proteins, waste items, and blood cells throughout the body.

Red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes) are all isolated from whole blood to create plasma. The remaining straw-coloured fluid is mostly water (90–92%) but also contains essential solutes for maintaining life and health. Electrolytes including sodium, potassium, chloride, bicarbonate, magnesium, and calcium are significant ingredients. Other compounds, such as amino acids, vitamins, organic acids, pigments, and enzymes are also present in trace levels. The endocrine system secretes hormones including insulin, corticosteroids, and thyroxine into the blood. For optimal health, hormone plasma concentrations must be carefully controlled.

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It is true that entomophathogenic nematodes, fungal pathogens, parasitic flies and wasps, and ground beetles are the natural enemies of masked chafer grubs.

The larval versions of the well-known May/June beetles, masked chafer, and Japanese beetles are called white grubs, also referred to as masked chafer grubs. The grubs have six noticeable legs and are between 1/4 and over 1 inch (6-25 mm) length. They are white with brown heads. Their bodies usually have a "C" shape to them.

The white grubs may harm any kind of plant area or grass if they are present in high enough quantities. They can hurt young plants or root crops in the garden. They can harm most other shallow-rooted blooms including begonias in the flower garden.

Moving the pesticide down to the root zone is necessary for effective chemical control of white grubs. It's where the grubs are eating right now. Applying 1/2 to 3/4 inches of water right away after application is the best way to do this. Every four or five days, irrigate again to keep the pesticide going into the soil.

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In the center of the neck, in front of the mandibular base, and behind the fourth cervical vertebra, lies a little bone with a U-shaped or horseshoe shape called the hyoid bone.

What are the functions of Hyoid Bone?

It is essential for speech, swallowing, and carrying the tongue's weight. The hyoid bone consists of three separate bones at birth; as we develop, these bones may or may not join together to form a crescent-shaped structure. It is the only bone in our body that can move freely. The hyoid bone is a component of a functional system that connects the mandible, the larynx, the muscles of the tongue, and other mouth and throat structures. All of them must therefore develop in the proper manner and at the proper rate, failing which the functioning of the other systems and eventually speech and swallowing would be affected.

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The supplied carbonyl group is not aromatic since it contains an sp3 carbon (located directly at the bottom). A molecule must not have an sp3 carbon in the conjugated system for it to just be aromatic or anti-aromatic.

Aromatics are compounds, which are organic substances made completely of the atoms hydrogen and carbon without which Earth's existence is not conceivable.

Because of their unique scents, hydrocarbon compounds were refereed to as aromatic compounds. Any substance that has an aromatic rings or exhibits some benzene-like characteristics is now recognized to be an aromatic chemical.

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The given statement " that bacterium called helicobacter pylori is known to cause gastritis by damaging the mucus layer of the stomach resulting in an ulcer " is true.

Helicobacter pylori is a bacterium that's known to beget gastritis, which is inflammation of the stomach filling. It's allowed to beget gastritis by damaging the mucus layers of the stomach, which is responsible for  guarding the stomach from digestive acids. This damage results in an ulcer,

Sore, in the stomach filling. In some cases, the infection can also lead to other complications,  similar as peptic ulcers and indeed stomach cancer. Treatment for Helicobacter pylori  generally includes a combination of antibiotics, proton pump inhibitor, and  life changes. It's important to seek treatment for this condition, as it can be painful and can lead to serious health complications if left  undressed.

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