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Answer:

In addition to being found in neuron cells, neurotransmitter receptors are also found in various immune and muscle tissues.but it is also in the plasma membrane of postsynaptic cells (in some cases also in the presynaptic terminal),

Explanation:

The net charge on the protein with amino acid sequence Glu-Ala-Ser-lys-Val-Arg-Phe-Ile-His will be positive.

Proteins are the biomolecules that are made up of amino acid monomers. They are very essential for the living body as they are required in the building and repair of the body. The primary sequence of proteins defines their functionality.

Amino acids are the organic compounds that are essential for the formation of proteins. Amino acids can be positive, negative or neutral in charge. Since the given sequence in the question has more positively charges amino acids( Lys, Arg, His) than the negatively charged amino acids( Glu, Asp) that is why the net charge of the protein is positive.

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Answer:

Answer in photo, hope it helps!!! :)

Explanation:

Answer:

skinner

Explanation:

The utricle is most sensitive to horizontal movements, while the saccule responds best to vertical movements.

To sense linear acceleration, gravity forces, and tilting movements, the vestibular system makes use of two additional organs known as the otolith organs. The utricle and the saccule are the two otolith organs found in the vestibular labyrinth. The saccule senses movement in the vertical plane, whereas the utricle is only designed to detect movement in the horizontal plane.

Macula is the sensory organs in the otolith organs which bear hair cells like that in semicircular canals. The vestibular system employs this knowledge of movement acquired through the otolith organs and semicircular canals to maintain posture, stability, and balance.

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C. When an electric current causes light to be produced   is the photoelectric effect observed

Heinrich Rudolf Hertz, a German scientist, developed the photoelectric phenomenon in 1887. Hertz discovered that when ultraviolet light shines on two metal electrodes with a voltage put across them, the light alters the voltage at which sparking occurs. This discovery is related to his work on radio waves.

High atomic number (Z) materials and low photon energy are where the photoelectric effect is most prevalent. Even though the energy transfer occurs between the photon and an orbital electron, the interaction should be viewed as including the complete atom.

A metal experiences the photoelectric effect when exposed to light. The wave theory of light makes the following predictions: Electrons will be released in response to light of any frequency.

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Each enzyme has an optimal range of pH and temperature beyond which the activity of the enzyme is reduced and at extreme conditions, the enzyme may even denature. Thus, at pH 9 the activity of the enzyme will slow down.

Enzymes are the biocatalysts, which when added to a chemical reaction increases the rate of the reaction. These compounds bind with the substrate and form product however it remains unused during the reaction and hence with a small quantity of enzyme large amount of product can be formed.

Enzymes show highest activity at the optimal range of factors such as pH, temperature, and solvent available. Beyond this range, the enzymes show less activity and they may even denature at extreme conditions.

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Although water enjoys sticking to itself, there are some situations where it actually prefers to stick to different kinds of molecules. Adhesion, which is the attraction of molecules of one sort to molecules of another kind, can be very strong for water, particularly when those other molecules have positive or negative charges.

Oils and fats are examples of nonpolar compounds. Since these nonpolar molecules are chargeless, water is not particularly drawn to them. Even when well mixed into water, molecules of nonpolar substances like oil and gasoline have a tendency to separate from the water once the mixing is stopped.

Things that do not dissolve in water :

Mustard oil, sawdust, sand, wheat flour, petals of flowers, chalk powder and soil are insoluble in water.

Amazingly, water can stick to both other things and to itself. In covalent compounds like ammonia (NH3), water (H2O), and hydrogen fluoride gas, hydrogen atoms covalently link to nitrogen (N), oxygen (O), or fluorine (F) to form hydrogen bonds (HF).

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The correct option is 1. Any of these are possible responses to new and unexpected data.

Research is a methodical process of inquiry that includes data gathering, documentation of important information, analysis, and interpretation of that data and information in accordance with appropriate procedures established by certain academic and professional disciplines. Research is the methodical and structured study of or collecting of data on a certain subject. An example of research is the effort being made by scientists to develop an AIDS cure. The material a high school student gathers for a report for class serves as an illustration of research.

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Assuming a diallelic gene coding for one feature, heterozygous individuals are those who carry one dominant and one recessive allele. The set of peas that are both heterozygous for pea seed color are Yy x Yy. Option 3.

Assuming diploidy, an heterozygous individual is the one that carries in its genotype one dominant and one recessive allele from the same gene.

The heterozygous individual's phentoype depends on the inheritance pattern and on the interaction of the involved gene with other genes (if there is interaction).

In the exposed example, the gene that codes for seed color is diallelic (Y and y) and expresses complete dominance, meaning that the dominant allele hides the expression of the recessive allele in heterozygous individuals.

The set of peas that are both heterozygous for pea seed color are Yy x Yy. Option 3.

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The correct answer is B. Incorrect- Meiosis produces haploid cells that are unique as a result of independent assortment and crossing over. Meiosis is a special kind of cell division that has two cycles. As a result, chromosome load is reduced by half. Thus, diploid cells entering meioisis are converted in haploid cells. Although it is true that emergent cells from meiosisi will have a unique genetic configuration.

The following terms are used to describe the amount by which a stimulus must increase or decrease before it’s noticeable by an individual the Difference threshold. Option A.

Absolute threshold is the minimum level of stimulus that can be detected usually defined as at least half the time. Commonly used in neuroscience and experimental research the term can be applied to any stimulus that can be perceived by the human senses including sound touch taste sight, and smell.

The absolute threshold is the minimum amount of stimulus a human needs to perceive 50% of the time. The difference threshold is the smallest change in a stimulus that a human perceives with a 50% chance of her. Sometimes we are interested in how much stimulus is needed to distinguish between different stimuli. This is called just a noticeable difference or difference threshold.

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Answer: It's B) Metaphor

Explanation: I got it right on my test

Some types of mutations can cause greater changes in proteins because they result in a different amino acid being translated. This different amino acid provokes a different primary structure, a different active conformation and, in the end, a different biological activity. A certain type of point mutation (when a single base pair is altered), for example, can lead to this when it is a missense mutation. It can also lead to translate to a synonymous codon (coding for the same amino acid), but in this case it does not effect the protein and the mutation is called silent.

Mitosis -> G1 -> S -> G2 -> cytokinesis best describes the sequence of events in a normal cell division.

Cell division is the process by which a parent cell divides into two daughter cells. Cell division usually occurs as part of a larger cell cycle in which the cell grows and replicates its chromosome before dividing.

Moreover, mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells.

The continuity of life is based on the reproduction of cells, or cell division. Cell division functions in reproduction, growth, and repair.

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Answer: C.

Explanation: a northern boreal forest lying on the southern slope of the Brooks Range and Arctic tundra on the north slope. The ANWR has wildlife species common to the Arctic and sub-Arctic

The human body of an average person contains roughly 30 trillion human cells. Some data are more accurate and suggests 37.2 trillion cells.

DNA is made up of nucleotides, so, the statement that DNA molecules are made of nucleotides is true. The correct option is c.

DNA is deoxyribonucleic acid and made up of nucleic acid. The genetic materials RNA and DNA are both composed of nucleic acid-based nucleic acids, whereas ribonucleic acid is found in RNA.

In addition, bases are linked by hydrogen bonds while DNA contains thymine and RNA contains uracil in place of thymine, all other bases are identical. All other options are incorrect regarding their composition.

Therefore, the correct option is c. DNA molecules are made of nucleotides.

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Answer:

A) Lignin

Explanation:

Among the cellulose, chitin and lignin, lignin I'd resistant to decay, it is deposited on the cell wall of mature plant cells. Deposition of lignin leads to death of the cells. Xylem vessels and tracheids are composed of lignin.

Answer: To my understanding, Cellulose is the least resistant to decaying.

Explanation:

Cellulose decays in weeks or months.

The difference between a grade of meat and to cut of meat is that grade of meat is used to define the quality of meat whereas the cut of meat is used to describe the quantity of meat.

The grades given to meat by USDA are known as an image of high-quality, secure, and solid American hamburgers. Quality grades, inside the cattle generation industry, are utilized as a dialect to create trade exchanges simpler.

Utilizing this evaluating framework, producers, as well as customers, appreciate a few benefits. The USDA has made an add up to eight grades and as it were five grades of them and being made accessible within the showcase for customers.

Amid butchering, meat is, to begin with, separated into primal cuts, pieces of meat at first isolated from the carcass. These are fundamental segments from which steaks and other subdivisions are cut.

Diverse nations and cuisines have diverse cuts and names, and now and then utilize the same title for a diverse cut, e.g., the cut described as "brisket" within the US is from an essentially distinctive portion of the carcass than British "brisket".

"Cut" frequently alludes barely to skeletal muscle (some of the time joined to bones), but can too incorporate other consumable tissue, such as offal (organ meat) or bones without noteworthy muscles joined.

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Nervous coordination transfers nerve impulse from one cell to another. Option 3 shows site for binding of chemicals involved in chemical synapse.

What is synapse?

The places of contact between neurons known as synapses are where information is transferred from one neuron to the next. Presynaptic neuron, synaptic cleft, and postsynaptic neuron are the three components of synapses, which most frequently occur between axons and dendrites.

One neuron releases neurotransmitter molecule into a tiny area (the synaptic cleft that is showed in 3) that is close to another neuron at a chemical synapse. Synaptic vesicles, which house the neurotransmitters, are tiny sacs that are then exocytotic ally discharged into the synaptic cleft. These molecules subsequently attach to the postsynaptic cell's neurotransmitter receptors. Finally, the action of the neurotransmitter is terminated by clearing the neurotransmitters from the synapse by one of several possible processes, such as enzymatic breakdown or re-uptake by certain transporters on the presynaptic cell or on neighbouring neuroglia.

Hence the correct option is 3 as shown in the figure

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Answer:

the answer is True

Explanation:

The hypothalamus is the master switchboard. It's the part of the brain that controls the endocrine system. That pea-sized structure hanging below it is the pituitary gland. It's called the master gland because it regulates the activity of the glands.

The statement that applies to the axial skeleton not the appendicular skeleton is

E. It protects the heart and lungs. .

An axial skeleton is a type of skeleton that consists of the bones of the head and trunk parts of the body. In the human skeleton, the axial skeleton consists of 80 bones and is composed of six parts i.e. the skull, ossicles of the middle ear, the hyoid bone, rib cage, sternum, and also the vertebral column. The axial skeleton in combination with the appendicular skeleton formed the whole skeleton.

The axial skeleton is the bones such as the vertebrae, sacrum, skull, ribs, and sternum. The appendicular skeleton is consist of the upper and lower extremities, which include the shoulder girdle and pelvis parts of the body. The appendicular skeleton includes shoulder girdle's bones, the bones of the upper limbs, pelvic girdle, and the lower limbs. So we can conclude that option A is the correct answer.

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Which statement applies only to the axial skeleton not the appendicular skeleton?

A. It contains a pivot joint

B. It has muscles attached that work in pairs

C. It contains red bone marrow

D. It possesses fossa for bone articulation

E. It protects the heart and lungs

A sex-linked disorder meant that the gene associated is found in the X chromosome, so for a female to have the condition it needs 2 copies of the defective gene.

Given that the mother is a carrier but the father is healthy, the probability for a FEMALE child to have DMD is 0%, so b is the right answer.

The greenhouse effect is caused by gasses such as carbon dioxide and water vapor, which absorb heat and reradiate the the heat back to the earth. Since in the greenhouse effect heat is retained, the greenhouse gasses act as thermal insulators to the Earth. These effect also moderates the temperatur on Earth. Having said this, the answer is D.

The answer is E

Calvin cycle reactions take place in the stroma, and use CO2, ATP and NADPH to make carbohydrates.

Answer:

0.45

Explanation:

WHY BECAUSE IT IS 49 ALLIES