i need the answers for me

Children are often told that eating too much candy can cause their teeth to fall out because C. bacteria use the sugar to make ATP, the fermentation process produces acids as a by-product and D. bacteria secrete acids in order to digest the sugar molecules.

Sugar has harmful effects on tooth enamel. When children consume candy, the sugar present in it can lead to dental problems.

A significant reason is that bacteria in the mouth use sugar to produce ATP, an essential source of energy for them. This process, known as fermentation, produces acids as a by-product (C). Additionally, bacteria secrete acids to digest the sugar molecules (D). These acids are harmful to the teeth as they attack the tooth enamel (A), making it weaker and more susceptible to decay.

Over time, the continuous exposure to acids may result in tooth decay and cavities, potentially leading to tooth loss if left untreated. It is essential to maintain proper oral hygiene and limit the consumption of sugary foods to prevent such dental issues. However, it is not accurate to say that sugars gradually replace the tooth enamel (B), as sugars do not have the properties or structure to replace enamel.

In conclusion, eating too much candy can harm children's teeth due to the presence of sugar, which contributes to the production of acids by oral bacteria. These acids attack tooth enamel, increasing the risk of tooth decay and potential tooth loss.

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Answer: Rough endoplasmic reticulum and Golgi apparatus

Explanation: The organelles responsible for producing enzymes in the pancreas are the rough endoplasmic reticulum and Golgi apparatus. Pancreas have an increased number of these organelles, compared than other cells. The reason why they have more rough ER and Golgi apparatus is because these organelles are making, sorting and packaging large amounts of enzymes in the form of proteins. These enzymes are secreted by the pancreas to aid in the digestion.

Answer:

sorry I just know one 2

Explanation:

A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a vertebrate's body.

If the addition of an inhibitor does not change the maximal reaction rate of an enzyme and substrate combination, then the inhibitor is a competitive inhibitor.

A competitive inhibitor is a type of enzyme inhibitor that binds to the active site of an enzyme, preventing the binding of the substrate. Since the inhibitor competes with the substrate for binding to the active site, the reaction rate can be restored by increasing the concentration of the substrate.

In the presence of a competitive inhibitor, the maximal reaction rate of the enzyme and substrate combination remains the same, but the apparent affinity of the enzyme for the substrate is reduced. This means that a higher concentration of substrate is required to achieve the same reaction rate in the presence of the inhibitor.

Therefore, if the maximal reaction rate of an enzyme and substrate combination is unaffected by the addition of an inhibitor, the inhibitor is a competitive inhibitor.

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The list of elements in the question comprises the periodic table of elements. It consists of the basic elements that exist in the universe. It comprises the simplest type of chemical substance, such as oxygen, which is essential for breathing. Fluorine is a highly reactive non-metallic element, Uranium is a silvery-grey metal that is denser than lead.

Carbon is a non-metallic chemical element with atomic number 6, Potassium is a silvery-white metal that is soft and easily cut, Bismuth is a chemical element that has a low melting point, Technetium is a metal that has a silver-gray appearance, Helium is a colorless and odorless gas that is non-toxic.

Sulfur is a yellow non-metallic element, Germanium is a metalloid that has a grayish-white appearance, Thulium is a chemical element that is the least abundant of the rare-earth elements, and Yttrium is a metal that is similar to aluminum but is more ductile and malleable.

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If the critical concentration of tubulin dimers in the test tube is above the critical concentration for the plus end but below the critical concentration for the minus end, you will observe the formation of MTs with a preferred orientation.

Specifically, the MTs will grow predominantly from their plus ends, as these are the sites where the concentration of tubulin dimers exceeds the critical concentration. However, the minus ends of the MTs may be unstable or have a tendency to depolymerize, as the concentration of tubulin dimers at these ends is below the critical concentration.

This imbalance in critical concentration between the plus and minus ends can lead to dynamic instability of the MTs, with periods of growth and shrinkage. Overall, this in vitro system reflects the complex regulation of MT assembly and disassembly that occurs in vivo, and highlights the importance of critical concentration in controlling the behavior of MTs.

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Answer:

keratin.

Explanation:

keratin is a fibrous protein that has protective and structural functions in the body.

to fulfil it's functional necessities keratin has characteristics that makes it insoluble and repellent to damage.

to fulfil it's functional necessities keratin has characteristics that makes it insoluble and repellent to damage.in the human body, keratin can be present in - hair and finger nails.

hope it helps. :)

The numbers of pelagic organisms and species decrease with increasing depth due to unsuitable environment.

There is inverse relationship between depth and the number of pelagic organisms because when the depth increases, the number of organisms decreases and vice versa.

So we can conclude that the numbers of individuals and species decrease with increasing depth.

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The main metabolites that feed into gluconeogenesis are lactate, pyruvate, glycerol, and certain amino acids.

Gluconeogenesis is the process by which the liver and kidneys synthesize glucose from non-carbohydrate sources, such as lactate, pyruvate, glycerol, and amino acids. These metabolites are converted into glucose through a series of enzymatic reactions that bypass the irreversible steps of glycolysis.

Lactate is produced by anaerobic glycolysis in tissues such as muscle, and can be transported to the liver for conversion to glucose. Pyruvate, the end product of glycolysis, can also be converted to glucose through gluconeogenesis. Glycerol, which is released from adipose tissue during lipolysis, can be converted to dihydroxyacetone phosphate (DHAP) and enter the gluconeogenic pathway.

Certain amino acids, such as alanine, can also be converted to glucose through gluconeogenesis. The carbon skeletons of these amino acids are converted into pyruvate, oxaloacetate, or other intermediates that enter the gluconeogenic pathway.

The regulation of gluconeogenesis is complex, and is influenced by hormonal signals such as glucagon and insulin, as well as by the availability of substrates and cofactors. The process is crucial for maintaining blood glucose levels during periods of fasting or carbohydrate restriction, and for providing glucose to the brain and other tissues that require a constant supply of glucose for energy.

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Answer:

what do you need help on?????

Explanation:

Answer: cytokinesis is the splitting of a single cell into two daughter cells after telophase of mitosis is completed

Explanation:

Answer:

rock layers are the layers of the earth's crust. igneous rock is volcanic lava after it has hardened

Answer:

It's less than 0.1 percent

Answer:

yes

Explanation:

Water helped to shape the new American colonies in the 18th-century by providing drinking water, fertile soil to grow crops and a way to transport goods.

New American colonies were benefited by the water bodies due they could use this water for drinking and transport.

Water was also a powerful source to create watermills, which helped with different tasks.

In conclusion, water helped to shape the new American colonies in the 18th-century by providing drinking water, fertile soil to grow crops and a way to transport goods.

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Answer:on what do you exactly need help on?

Explanation:

Answer:

A human body contains 46 chromosomes in pairs of 2

Explanation:

A human body contains 46 chromosomes in pairs of 2

Explanation:

A double-stranded DNA molecule with three guanine and five thymine nucleotides (on one 5' to 3' strand) has 16 nucleotides in total.

A nucleotide is the monomer constituting DNA or RNA biopolymer molecules.

Each nucleotide consists of the following:

A double-stranded DNA molecule posseses two strands of DNA made up of nucleotides.

According to this question, a double-stranded DNA molecule has three guanine and five thiamine nucleotides.

This means that each stand of DNA has 8 nucleotides, hence, the double-stranded DNA will have 16 nucleotides in total.

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Titin runs the length of the sarcomere and contributes to the elastic recoil in muscle. The correct answer is option (B).

Titin, also known as connectin, is a large protein that spans the length of the sarcomere, which is the basic contractile unit of muscle fibers. It runs from the Z disk to the M line, attaching to both and providing structural support to the sarcomere. Titin is the largest known protein, and its size and unique properties contribute to its role in muscle function.One of the important functions of titin is its contribution to the elastic recoil of muscle. It acts as a molecular spring that helps muscles stretch and recoil back to their original length after contraction.

When a muscle is stretched, titin is extended, storing potential energy. This energy is then released during muscle relaxation, allowing the muscle to return to its resting state. This elastic property of titin contributes to the efficiency and effectiveness of muscle contraction and helps maintain the structural integrity of the sarcomere.In summary, titin is a crucial protein in muscle fibers that runs the length of the sarcomere and plays a significant role in muscle elasticity and recoil. Hence option (B) is the correct answer.

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Answer:

B.

fossil fuels are very scarce on earth and cannot be replaced burning them increases greenhouse gasses such as (carbon dioxide - CO2, water vapor and methane) when these are released into the environment they lead to global warming- its one of the most direct and dangerous effect humans have

Answer: phosphotransferase or kinases 

Explanation:

The enzyme that catalyzes the addition of a phosphate to adenosine diphosphate is Pyruvate kinase.

Pyruvate kinase is an enzyme that is involved in the final step of glycolysis.

It catalyzes the transfer of a phosphate group from phosphoenolpyruvate (PEP) to adenosine diphosphate (ADP), resulting in one pyruvate molecule and one ATP molecule.

The ATP synthase is a mitochondrial enzyme that catalyzes the synthesis of ATP from ADP and phosphate.

This is driven by a flux of protons across a gradient generated by electron transfer from the proton's chemically positive to negative side.

Catalysis is a term that describes a process in which the presence of a substance (the catalyst) that is not consumed during the reaction influences the rate and/or outcome of the reaction.

Thus, pyruvate kinase is the enzyme responsible for the given reaction.

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Statement C. a segment of human DNA is inserted into the DNA sequence of a bacterium is an example of gene splicing.

The gene splicing process also called recombinant DNA is a methodology to ligate different gene sequences in order to create a chimeric protein that may be used with diverse objectives such as the production of human insulin.

Therefore, with this data, we can see that the gene splicing process in genetic engineering is a fundamental technology based on the ligation of distinct sequences.

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Red bone marrow in adults is only found in the axial skeleton, the pectoral and pelvic girdles, and the proximal heads of the humerus and femu.

What is bone marrow?

The spongy substance found inside a few of the body's bones, notably the hip and thigh bones, is called bone marrow. Stem cells, which are immature cells, are found in bone marrow. Blood cells and healthy bone marrow are essential for human survival. A marrow or cord blood transplant may be the best course of treatment when a disorder or illness damages bone marrow to the point where it is no longer able to function properly.

Red bone marrow is limited to the axial skeleton, pectoral and pelvic girdles, and proximal heads of the humerus and femur in adults.

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no problem ok

right now I am Deepak present par hai kya hua hai kya kr rhi thi na ki cycle is a par hai

An invasive species is a non-native species that has been introduced into an environment where it is not native and has the ability to establish itself and spread, often leading to negative impacts on the local biodiversity.

Invasive species can be a threat to biodiversity in several ways:

Competition: Invasive species can outcompete native species for resources such as food, water, and space. This can lead to the decline or extinction of native species that are not able to compete with the invasive species.

Habitat alteration: Invasive species can alter the physical and biological characteristics of an ecosystem, which can affect the habitats of native species. For example, invasive plants can outcompete native plants and change the structure of the soil, affecting the burrowing and nesting habits of native animals.

Disease transmission: Invasive species can carry diseases that can be transmitted to native species, leading to the decline or extinction of these species.

Genetic hybridization: Invasive species can hybridize with native species, leading to the loss of genetic diversity and the ability of native species to adapt to changing environmental conditions.

Overall, invasive species can have significant negative impacts on biodiversity, and it is important to manage their introduction and spread to prevent these impacts.

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Fick's second law provides a more thorough explanation of diffusion by taking into account the change in concentration with regard to both time and position. Fick's first law defines the diffusion of a material across a medium, such as a slab, based on concentration gradients.

Fick's first law states that the rate of diffusion (J) is directly proportional to the negative gradient of the concentration (dC/dx), multiplied by the diffusion coefficient (D). Mathematically, it can be expressed as:

J = -D x (dC/dx)

Let's picture a rectangle shape to symbolize a slab in this situation. With higher concentrations on one side and lower concentrations on the other, the concentration of the diffusing chemical is shown as a gradient. Fick's first law states that until equilibrium is established, the material will move from the side with higher concentration to the side with lower concentration.

Fick's Second Law states that the rate of change of concentration (dC/dt) over time is equal to the diffusion coefficient (D) multiplied by the second derivative of the concentration with respect to position (d²C/dx²). Mathematically, it can be expressed as:

dC/dt = D x (d²C/dx²)

In the case of a slab, the concentration gradient is represented by a curve showing how the concentration changes over time and position. Fick's second law explains how the concentration distribution evolves over time due to the diffusion process. It describes how the concentration diffuses and spreads out within the slab, eventually leading to a more uniform distribution.

By comparing the two models, we can see that Fick's first law focuses on the flux of diffusion, which depends on the concentration gradient. Fick's second law, on the other hand, provides a more comprehensive understanding of how the concentration changes over time and position within the slab.

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The strength of intramolecular bonds within a water molecule compare to the strength of intermolecular bonds between water molecules within  the inter  molecular forces, ion-dipole is strongest that is  followed by  the hydrogen bonding in that case  the dipole-dipole and London dispersion.

Intermolecular forces are the interactions or repulsive forces that are mediating interaction between two molecules.

The intramolecular bonds which hold atoms in water molecules together are 25 times as stronger  as the intermolecular bonding  in the water molecules.

Intermolecular forces are weaker as compared to intramolecular forces, which bind a molecule together. Actual electron sharing takes place in an intramolecular hydrogen bond. Therefore, it is stronger than the intermolecular hydrogen bond.

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Answer:

false

Explanation:

because it also helps in maintaining environmental condition balanced