What muscles are utilized when performing the exercise, high knees?.

Answer:

A. Negative Feedback Loop

Explanation:

As far as I know, its mostly negative feedback cuz the end product of the cycle which is blood sugar back to normal level causes the initial thing to stop releasing (glucagon or insulin)

A group of living things that can interbreed to generate fertile offspring and share specific physical and genetic characteristics is referred to as a species in biology. Understanding the diversity of life on Earth and how various organisms are related to one another requires a knowledge of the idea of species.

Historically, physical characteristics that could be observed, like as morphology, behaviour, and ecology, were used to categorise species. However with the development of molecular genetics, species definitions have been broadened to incorporate genetic data. In reality, genetic data is frequently used to support or challenge conventional species designations, particularly when physical characteristics are inconclusive.

It is crucial to remember that the idea of a species is not always clear-cut, and there are several discussions and arguments around how to identify and categorise species. For instance, some experts contend that under specific conditions, various species may be able to interbreed to create fertile offspring, while others contend that the idea of a species is merely a human construct used for classification and communication, rather than a basic unit of nature.

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Answer:

Both.

Explanation:

B cells AND plasma cells both produce antibodies. Plasma cells produce more though.

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Answer:

El síndrome de Down es el resultado de un niño nacido con un cromosoma adicional agregado al número esperado de cromosomas (generalmente destinado a ser 46).

El síndrome de Angelman se produce cuando un niño nace con una mutación en el 15º cromosoma heredado de los padres.

Explanation:

En el síndrome de Down, se agrega un cromosoma adicional al complemento de cromosomas que un niño debe heredar de sus padres. Se supone que un niño tiene un complemento de 46 cromosomas (23 cada uno) de ambos padres. Una vez que hay un aumento en este número, se establece el síndrome de down. Es una condición cromosómica común. Puede manifestarse como una trisomía, causada por la no disyunción durante la división celular, lo que resulta en 3 copias del cromosoma 21 en lugar de 2 copias, mosaicismo, donde una mezcla de células se clasifican en 2 grupos que contienen un complemento completo de 46 cromosomas y el otro un el cromosoma adicional lo hace 47 y la translocación ocurre cuando un cromosoma 21 adicional o parte del 21 se une al cromosoma 14. Los niños generalmente tienen cabezas y orejas pequeñas, cuellos cortos, caras planas, etc.

En el síndrome de Angelman, el cerebro se ve afectado en gran medida, debido al efecto de la mutación en el sistema nervioso. La pérdida de la función en el 15º cromosoma es responsable del síndrome de Angelman, que resulta en la incapacidad del niño para hablar, mantener el equilibrio, moverse, un desarrollo deficiente tanto física como intelectualmente.

If mitochondria originated as prokaryotic symbionts, Circular DNA might they share with prokaryotes, option B is correct.

Mitochondria originated from prokaryotic symbionts, specifically a group of bacteria known as alpha-proteobacteria. As a result, they still retain certain characteristics reminiscent of their prokaryotic ancestors. One such characteristic is the presence of circular DNA. Like prokaryotes, mitochondria possess their own genome in the form of a circular DNA molecule, known as mitochondrial DNA (mtDNA).

This circular DNA structure is distinct from the linear DNA found in the nucleus of eukaryotic cells. The circular nature of mtDNA is a shared feature between mitochondria and prokaryotes, suggesting their evolutionary origins and their ability to replicate independently within the cell, option B is correct.

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Answer:

arteries (red)

Explanation:

carry oxygen and nutrients away from the heart to your bodies tissues

Answer:

Bread is a carbohydrate.

Digestion of carbohydrates begin from the mouth.

As the bread is eaten and it is been chewed, the salivary amylase act on it.

This is also called mastication which is the breaking down of large pieces of bread into smaller pieces.

The salivary amylase break the monomeric bond between the dissacharides and starches by breaking amylose and amylopectin into smaller glucose.

When it's get to the stomach there is no further breaking down in the stomach because amylase do not get to the stomach because of stomach acidity. The strong peristaltic contraction of the stomach make it to form uniform chyme.

When the chyme entered the small intestine, the pancrease releases the pancreatic juice which contain amylase that breakdown dextrins into shorter carbohydrates. Additional enzymes are released which break maltose into two glucose and this enzyme is called maltase.

Sucrase breakdown sucrose into glucose and galactose.

There are cells in the small intestines which contain membranes that have protein transport which get monosaccharides and other nutrients to be absorbed in the blood.

The liver receive glucose, fructose and galactose and store them which is later use by the cells.

Explanation:

Digestion is the breakdown of large complex food into smaller pieces which can be easily absorbed by the body.

The goal of carbohydrates digestion is to breakdown complex carbohydrates and dissacharides into monosaccharide that can be absorbed into the body.

Selenium is a trace mineral that is part of the structure of certain proteins. One of these proteins is an antioxidant enzyme that neutralizes peroxides before they can form free radicals. Glutathione peroxidase, is the name of the protein.

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Based on the provided data, we can determine the most likely ecological roles of the organisms regarding their mode of nutrition (autotroph or heterotroph) as follows:

Organism V: Autotroph. It is multicellular, indicating a complex structure that can support photosynthetic processes.

Organism W: Heterotroph. It is multicellular and lacks chloroplasts, suggesting it does not possess the ability to perform photosynthesis.

Organism X: Autotroph. It lacks multicellularity but has chloroplasts, which are responsible for photosynthesis in autotrophs.

Organism Y: Heterotroph. It is multicellular, lacks chloroplasts, and does not possess cilia, suggesting it relies on external food sources.

Organism Z: Heterotroph. It lacks multicellularity, does not have chloroplasts, and has a cell wall. These characteristics indicate a heterotrophic nature.

Model F is the best model for prokaryotic cell

Description of the best model of a prokaryotic cell: Cell Membrane, Cytoplasm, DNA, Nucleoid, Ribosomes, Cell Wall, Flagella, Fimbriae.

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Answer:

C Photosynthesis products oxygen and Cellular Respiration does not

Explanation:

The Products of Cellular Respiration are Carbon Dioxide , Water and Energy .

The entry of carbon dioxide into the leaf happens as: (2) CO₂ passes through openings called stomata on the leaf surface.

Carbon dioxide is one of the important inorganic raw material of the plants to perform the process of photosynthesis. The plants capture carbon dioxide as the source of carbon and convert it into sugars by using the light energy of the sun.

Stomata are the small pore like opening present in the leaf surfaces upon the epidermal layer for the exchange of gases. These pores are surrounded by the guard cells which mediate the opening and closing of the stomata.

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The red pigmented protein in erythrocytes that transports oxygen and carbon dioxide is called hemoglobin.

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Answer:

A rainbow is caused by sunlight and atmospheric conditions. light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, seperating into its component wavelengths-or colors when light exits the droplet, it makes a rainbow

Adding a chemical that adjusts the temperature or pH of the solution could help to get the enzyme to proceed with the hydrolysis of adenosine triphosphate.

For example, if the temperature of the solution is too low, you could try adding a chemical that increases the temperature, such as a heater or a chemical that generates heat when it reacts with water. If the pH of the solution is too high or too low, you could try adding a chemical that adjusts the pH, such as a buffer. It is also possible that the enzyme is being inhibited by a chemical in the solution. In this case, adding an activator that promotes the enzyme's activity could help to get the enzyme to proceed with the hydrolysis of adenosine triphosphate. It is important to note that adding any chemical to a solution can have unintended consequences, and it is important to carefully consider the potential effects before proceeding. Additionally, it is always important to follow proper safety protocols when working with chemicals.

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Answer:

i believe the answer is b

Explanation:

Answer:

Explanation:

Codominance, when both characteristics are expressed.

After moving through the ductus deferens, sperms would travel next into the urethra.

What is the Ductus deferens? Ductus deferens (vas deferens) is a muscular duct that conveys sperm from the epididymis to the ejaculatory duct in males. It runs from the tail of the epididymis to the ejaculatory duct and is located inside the spermatic cord. It functions as a duct for the vasectomy operation, as well as a conduit for sperm removal.
What is sperm? Sperm is the male reproductive cell or gamete, which is important in fertilization. When fertilization occurs, a single sperm cell fuses with an egg cell, forming a zygote that goes on to form a fetus. The sperm is produced in the testes of the male reproductive system.However, after passing through the ductus deferens, the sperm then move into the urethra. The urethra is a duct that carries urine from the bladder to the outside of the body. It also serves as a channel for the transmission of sperm during ejaculation.

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Answer:

a. Tt - Gametes T and t

b. GG - Gametes G only

с. ff - Gametes f only

Explanation:

Gamete formation or meiosis is a cellular division of the reproductive cells in sexually reproducing organisms. Meiosis produces daughter cells (gametes) with a reduced number of chromosomes (by half) as the parent cell.

According to Gregor Mendel in his law of Segregation, he stated that the alleles of a gene get separated into gametes in such a way that only one allele can be found in the gamete. The separation is random and equal.

Based on this, a heterozygous parent Tt will produce gametes with alleles T and t in an equal proportion. Since parents GG and ff contains the same alleles in their genotype, they will produce gametes with only one type of allele each i.e. Gametes with alleles G and f respectively.

Answer: D. A document that describes the effects proposed activities might have on the environment

Explanation: An Environmental Impact Statement describes and analyzes a proposed action which may have a significant impact on the environment. I don’t know how to explain it any better.

Nitrogen forms NUCLEOTIDES that are part of DNA, as well as amino acids, which help build proteins. Nucleotides are building blocks of DNA.

Deoxyribonucleic acid (DNA) is a double helix molecule composed of two long strands of building blocks called nucleotides.

In DNA, there are four types of nucleotides that contain different nitrogenous bases: Adenine, Cytosine, Guanine and Thymine.

The nitrogenous bases are composed of nitrogen and they are fundamental to form nucleotides (nucleotides consist of one nitrogenous base, one sugar and one phosphate group).

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Answer:

Completely factor means to continuously factor terms until they are in simple terms, meaning you are no longer able to factor.  When we completely factor, the coefficient of the variable of at least one factor should be 1.

The given expression can be first factored using FOIL.

(a2 + 2)(a2 - 3)

Note that (a2 - 3) can be factored.  Think of it as a difference in perfect squares.  So in the end, we have

(a2 + 2)(a - √3)(a + √3)

Answer:

b

Explanation:

Xylem is a vascular plants tube-like structures that move water.

Xylem is the specialised tissue of vascular plants that transports water and nutrients from the plant–soil interface to stems and leaves, and provides mechanical support and storage.

The xylem is a tissue which transports water and minerals from the roots up the plant stem and into the leaves. Xylem consists of dead cells. The cells that make up the xylem are adapted to their function: They lose their end walls so the xylem forms a continuous, hollow tube.

Xylem cells constitute the major part of a mature woody stem or root. They are stacked end to end in the center of the plant, forming a vertical column that conducts water and minerals absorbed by the roots upward through the stem to the leaves.

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Cells size can be determine at division through the timing of cell growth and the increase in cell growth. When there is an increase in cell growth, it will eventually lead to an increase in cell size. Cells should grow before dividing. The cell increase in size during interphase. If it does not grow, the cells does not have the ability to synthesize proteins for mitosis. Mitosis will not happen. If the cell did not grow, the cell ceases to progress and could die.

Answer:

Animal cells have external walls

Explanation:

Animal cell simply have a cell membrane, but no cell wall

Repressible operons require that the a product binds to the repressor protein before it can bind to the operator.

The repressor binds to the operator gene and prevents it from initiating the synthesis of the protein called for by the operon. The presence or absence of certain repressor molecules determines whether the operon is off or on. A repressor is a DNA- or RNA-binding protein that inhibits the expression of one or more genes by binding to the operator or associated silencers. A DNA-binding repressor blocks the attachment of RNA polymerase to the promoter, thus preventing transcription of the genes into messenger RNA. The repressor protein works by binding to the promoter region of the gene(s), which prevents the production of messenger RNA (mRNA)

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It is important for Mendel's subject to reproduce quickly so that he could complete many experiments in a short period of time. Many offspring are needed so as to study the phenotypes and genotypes in detail.

Mendel carried out several breeding experiments using the pea plant. Through his series of experiments, Mendel was able to formulate the laws of genetics, otherwise known as the law of segregation and the law of independent assortment respectively.

Mendel made use of the pea plant for his breeding experiments for a couple of reasons:

Thus, it is quite important that the subject used by Mendel reproduced quickly and produced many offspring so as to be able to conduct several breeding experiments within a short period as well as study the traits in detail.

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General Strain Theory, Social Control Theory, and Social Learning Theory are among the leading criminological theories that explain criminal behavior, delinquency, and the reasons why people deviate from the social norm.

General Strain Theory(GST) is a sociological theory that asserts that individuals' strain or stress can lead to criminal behavior. According to GST, three sources of strain; failure, negative stimuli, and separation can contribute to an individual's deviant behavior.

Example: Suppose a person is looking for work but is continually refused because of his age. This may cause the person to feel frustrated and may lead him to engage in criminal behavior.

Social Learning Theory asserts that people learn to be violent or non-violent based on observation and modeling from their environment, and people in their social surroundings. The theory argues that people will engage in criminal behavior if they think the benefits outweigh the negative consequences. the theory also suggests that people are more likely to be violent if they feel their environment encourages it.

Example: A child might be exposed to a parent who uses violence as a means of problem-solving. They may grow up believing that violence is the only way to solve problems and begin engaging in violent behaviors themselves.

Social Control Theory argues that people do not commit crimes or deviant behavior because they fear the negative consequences of doing so and they are less likely to engage in deviant behavior as they have stronger ties to society.

Example: A person may choose not to engage in criminal behavior because they fear the punishment that may come with it.

In conclusion, these three theories attempt to explain criminal behavior and deviant behavior from different perspectives. While General Strain Theory argues that strain or stress leads to deviant behavior, Social Control Theory suggests that people will refrain from criminal activity because of the consequences. Social Learning Theory asserts that people learn from their environment and the people in it and may model or imitate their behavior.

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