Explain the difference between constitutive and facultative skin color in simple words.

Answer:

Cavities are caused by tooth decay — a process that occurs over time. Here's how tooth decay develops:

Plaque forms. Dental plaque is a clear sticky film that coats your teeth. It's due to eating a lot of sugars and starches and not cleaning your teeth well. When sugars and starches aren't cleaned off your teeth, bacteria quickly begin feeding on them and form plaque. Plaque that stays on your teeth can harden under or above your gum line into tartar (calculus). Tartar makes plaque more difficult to remove and creates a shield for bacteria.

Plaque attacks. The acids in plaque remove minerals in your tooth's hard, outer enamel. This erosion causes tiny openings or holes in the enamel — the first stage of cavities. Once areas of enamel are worn away, the bacteria and acid can reach the next layer of your teeth, called dentin. This layer is softer than enamel and less resistant to acid. Dentin has tiny tubes that directly communicate with the nerve of the tooth causing sensitivity.

Destruction continues. As tooth decay develops, the bacteria and acid continue their march through your teeth, moving next to the inner tooth material (pulp) that contains nerves and blood vessels. The pulp becomes swollen and irritated from the bacteria. Because there is no place for the swelling to expand inside of a tooth, the nerve becomes pressed, causing pain. Discomfort can even extend outside of the tooth root to the bone.

Explanation:

I hope it helps

A medically important genus that contains short rods that are facultatively anaerobic, catalase-positive, and motile is the genus Bacillus.

Bacillus is a genus of bacteria that are rod-like shaped and are well known to be gram-positive.

These Bacillus bacteria are aerobic (oxygen presence) or also can be anaerobic (fermentative facultative).

In conclusion, a medically important genus that contains short rods that are facultatively anaerobic, catalase-positive, and motile is the genus Bacillus.

Learn more about Bacillus here:

https://brainly.com/question/13585211

#SPJ1

His business failing was the reason why he was convinced that he was right to chop down the tree.

This is defined as the process in which a substance such as a tree is cut down through the use of tools.

Once-ler business failed and he felt chopping down the Truffula trees will result in him having money through the sales of the resources.

Read more about Lorax here https://brainly.com/question/7643286

#SPJ1

In aqueous solutions, the charged hydrophilic heads of phospholipids are attracted to the water phase, and the nonpolar hydrophobic tails are repelled.

Phospholipids may be defined as ad amphipathic molecule that consists of fatty acids, a phosphate group, and an alcohol attached to the phosphate.

The hydrophilic heads of the phospholipids are water-loving which consists of the phosphate group while the hydrophobic tails of the phospholipids are water-hating that comprises of fatty acids.

Therefore, in aqueous solutions, the charged hydrophilic heads of phospholipids are attracted to the water phase, and the nonpolar hydrophobic tails are repelled.

To learn more about Phospholipids, refer to the link:

https://brainly.com/question/11084478

#SPJ1

Answer:

B.

Explanation:

it belived to be one of the earliest chemical

pesticide.

Hope it's Help

Spraying of pesticides leads to disease in human as well as in other microorganisms.

Spraying of pesticides greatly affected the animals and aquatic life. Some pesticides wash away with rain and add to the water bodies which is responsible for killing of aquatic animals. This spraying also kills some useful microorganisms that are present in soil.

So we can conclude that spraying of pesticides leads to disease in human as well as in other microorganisms.

Learn more about pesticide here: https://brainly.com/question/6589507

#SPJ1

Answer: Fracking is drilling into earth and directing a mixture of water, sand and chemicals at a rock layer to release gas inside.

Answer:

Fracking is revolutionizing oil and gas drilling across the country.

Explanation:

I hope it helps! Have a great day!

Pan~

Answer:

Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.

Explanation:

A. Primary consumer

Explanation:

Primary consumers make up the second trophic level. They are also called herbivores. They eat primary producers—plants or algae—and nothing else. For example, a grasshopper living in the Everglades is a primary consumer.

Explanation:

A genetic counselor is someone who works with individual, families, communities and other health care professionals to empower them ....

[tex] \underline{\boxed{ \huge \pink \star\sf{answer\pink \star}}}[/tex]

B.) speeds up chemical reactions

Answer:

D

just answer it ok

Bye hope it helps

The paper bags are less harmful than plastic bags because paper bags are made from the tree which is from nature.

Plastic is a unnatural substance. It is bio degradable. The plastic is make stronger by the use of radiation.

The paper bags are made by hands. It contains no processing. While the plastic bags are modified in machines. They involves the use of harmful radiation.

Thus, the paper bags are less harmful than plastic bags.

Learn more about plastic.

https://brainly.com/question/21219036

#SPJ1

Answer:

1. d 2.c 3.A 4. B

Explanation:

Im right mate

The one effect of gravity within the solar system is planet experiences increasing gravity throughout its orbit, so it continuously speeds up, which means letter B.

The force of gravity between two objects is the product of their masses divided by the square of the distance between them. That is, the more mass an object has and the closer it is, the greater its force of attraction on another object.

The concept of gravity is something known naturally, however the gravity that occurs in the solar system and the planets leaves them in orbit and in addition to that with each passing year these planets have an even faster speed.

See more about gravity at brainly.com/question/4014727

#SPJ1

Answer:

a. mouth

Explanation: this shouldn't be difficult

Answer:

mouth bec we eat through mouth .

Blood vessels have three layers that provides strength to the blood vessel when the blood is moving with high pressure.

All blood vessels are all made of three layers i.e. The adventitia or outer layer, the tunica media or a middle layer and an inner layer, or tunica intima.

Capillaries are tiny blood vessels that have thin walls. The capillaries also take waste products such as carbondioxide away from your tissues and loaded the blood with oxygen.

Arteries are the largest blood vessels with the thickest walls which means they are the thickest.

Large arteries receive the highest pressure of blood flow so that's why they are more thick and elastic to accommodate the high pressures.

The valves play greater role in blood flow because valves prevent the backward flow of blood. They are present in heart chambers.

Connective tissues are likely to be found in both arteries and veins in order to ensure their important function.

Pumping of heart is a mechanism that ensure that blood continuously flows throughout our body. As the heart beats, it pumps blood through blood vessels which is called the circulatory system.

So we can conclude that blood vessels have three layers that provides strength to the blood vessel when the blood is moving with high pressure.

Learn more about arteries here: https://brainly.com/question/64497

#SPJ1

Formation of a gas, formation of a precipitate and formation of a slightly ionized product are the cases for the completion of ionic reactions.

The three conditions under which ionic reactions can run to completion i.e. formation of a gas, formation of a precipitate and formation of a slightly ionized product.

K+(aq) + Br−(aq) + Ag+(aq) + C2H3O2−(aq) → K+(aq) + C2H3O2−(aq) + AgBr(s)

Mg2+(aq) + SO42−(aq) + Ba2+(aq) + 2NO3−(aq) → Mg2+(aq) + 2NO3−(aq) + BaSO4(s)

So we can conclude that formation of a gas, formation of a precipitate and formation of a slightly ionized product are the cases for the completion of ionic reactions.

Learn more about reaction here: https://brainly.com/question/26018275

#SPJ1

Nucleotides from the DNA template strand complement the mRNA's codons. These codons code for amino acids. Option B is correct. CAA - CTA - TCG

Nucleotides are monomers composed of a sugar molecule, joined with a phosphate group and a nitrogenated base.

Several nucleotides joint by their extremes compose the nucleic acids.

Nucleotides have a certain order or sequence in nucleic acids, which is significant since these sequences carry biological information neccesary to carry out cellular functions.

Codons are short sequences of three nucleotides that carry genetic information needed to build the protein. These units determine which amino acids are added to the growing chain during the assembly.

More than one codon might code for the same amino acid.

Different sequences of three nucleotides -codons- might code for a different amino acid. This means that the resulting proteins will not be the same, and they will accomplish different functions.

When DNA molecule unwinds to be transcripted, two single strands get separated,

It receives that name because it is the sequence that codes for each amino acid composing the proteins.

When referring to the coding strand, we are talking about the sequence that turns out to be the same as the mRNA that results from the transcription of the same DNI segment -switching bases T for U-.

This is the one that is used during transcription to synthesize mRNA. The template strand is the one that is going to be complemented by the mRNA.

To get to know the sequence of nucleotides in the template strand that code for the polypeptide sequence val-asp-ser, firts we need to know which codons code for these amino acids.

1)

Amino acid            Codon

Val                          GUU, GUC, GUA, GUG

Asp                         GAU, GAC

Ser                          UCU, UCC, UCA, UCG, AGU, AGC

These are all the possible codons in mRNA that might code for these amino acids. Now, we need to identify their complementary bases on the template strand.

2)

mRNA        Template strand

GUU                  CAA

GUC                  CAG

GUA                   CAT

GUG                  CAC    

GAU                   CTA

GAC                   CTG    

UCU                   AGA

UCC                   AGG

UCA                   AGT

UCG                   AGC

AGU                   TCA

AGC                   TCG  

The column of the right shows all the possible nucleotides that might complement the mRNA codons. There are several combinations. Now, we need to choose among the options the correct combination.

3)

Options A and  D  ⇒  guu-gau-agc and caa-cua-ucg

These are not the correct options since they carry uracils instead of thymines. Remember that DNA molecules have thymine, and RNA molecules have uracil.

Option C ⇒ gtt-gat-agc

This is not correct since these sequences do not complement the mRNA codons.

Option B ⇒ caa-cta-tcg

This is correct. You can find these nucleotide sequences among the options written before for the template strand.

Option B) CAA - CTA - TCG is the correct one.

You can learn more about template strand at

https://brainly.com/question/17082634

#SPJ1  

Answer: CAA - CTA - TCG is the correct one.

Explanation:

Answer:

number 4 is puncture

five is amputation

six is laceration I think

number 2 is incision

that's all I know

Answer: they give milk to their young and they tend to hold the young in their stomach for longer times than other animals and give birth to live babies

Explanation

The most likely result in the formation of a stable hybrid zone is that Coyote-wolf hybrids are more fit in the hybrid zone than either parental species.

Evolutionary adaptation refers to the adaptive features of a population in a given environment.

Moreover, the statement 'the population density would decrease because insufficient abiotic factors are available to support the population' is correct about a drought in a given environment.

In conclusion, the most likely result in the formation of a stable hybrid zone is that Coyote-wolf hybrids are more fit in the hybrid zone than either parental species.

Learn more about evolutionary adaptation here:

https://brainly.com/question/2290184

#SPJ1

Food proteins are used most efficiently when we : ( B ) consume enough carbohydrates and fats to meet our kilocalorie needs

Our kilocalorie needs vary between male and females. An average male needs about 2700 kcal per day while a woman needs about 2200 kcal per day to function properly. In order to meet this kilocalorie needs we have to consume the essential nutrients such as carbohydrates and fats and proteins.

Hence we can conclude that Food proteins are used most efficiently when we consume enough carbohydrates and fats to meet our kilocalorie needs

Learn more about our Kilocalorie needs : https://brainly.com/question/15983910

#SPJ1

There were several characteristics that the scientists kept in mind while classifying, these are mobility, cell structure, cell type, body type, etc.

Classification is the grouping of organisms based on similar characteristics which makes them different from other groups.

There are the following characteristics to classify them:

Thus, these are the characteristics that the scientists kept in mind before drawing classification.

For more details regarding classification, visit:

https://brainly.com/question/10330847

#SPJ1

Other molecular items would be required Ions, magnesium, dNTP, primers, and buffer.

Polymerase chain reaction (PCR) is a technique for obtaining a large number of copies of a particular DNA fragment from a small amount of sample. It is sufficient to start from a single copy of that original fragment, or mould. This technique is based on the natural property of DNA polymerases to replicate strands of DNA, using alternating high and low-temperature cycles to separate the newly formed strands of DNA from each other after each replication phase, and then allow the strands of DNA to rejoin so that they can be duplicated again.  Today, the entire PCR process is automated by means of a device called a thermal cycler, which allows the reaction tubes to be heated and cooled in order to control the temperature required for each stage of the reaction.

The common PCR is performed with cycles that have three temperature steps:

The components necessary to carry out a PCR are:

Divalent Ions: necessary for polymerase function, magnesium ions are generally used and are in the form of magnesium chloride salt MgCl2 . The final concentration of Mg++ should be between 1.5-2.0 mM and is optimal for most PCR products.

dNTP: deoxyribonucleotides triphosphate, used by the polymerase to extend the chain.

Primers: are two short nucleotide sequences that are complementary to the DNA fragment mold. They are generally constituted between 20-40 nucleotides on average and with a GC content of 40-60%.

Buffer: Solution necessary for the reactions to take place, it is in charge of keeping the pH stable.

Taq polymerase: Enzyme in charge of DNA synthesis by adding dNTP. It supports high temperatures however has no corrective activity.

All these components are mixed in one solution.

Thus,  Ions, magnesium, dNTP, primers, and buffer.

To learn more about Polymerase chain reaction click here:

https://brainly.com/question/11417541

#SPJ1

According to the context of the text, it can be inferred that the correct option is "When I gathered the courage to try beets for the first time" because it coincides with the information in the text.

The text is about the author's father's reflection on the taste for some foods. In that specific case, the author cites that reflection to refer to the first time he ate beets.

To refer to that moment, the author refers to his father's phrase and later develops that idea by relating it to the day he ate beets. In general, he gives a brief description of what the food looks like and his reaction to the ingredients in his dish.

Note: This question is incomplete because there is some information missing. Here is the complete information:

OPTIONS

Learn more about texts in: https://brainly.com/question/18228844

#SPJ1

Answer:

"at Atwoods Cafe when I sat at a table for two near the door"

Explanation: