According to ______
electrons are added one sublevel at a time.

Answer:

Non-coding DNA regions play important roles in regulating transcriptional activity by encoding different types of non-coding RNAs (ncRNAs), acting as scaffold attachment regions, acting as enhancer specific regions, etc.

Explanation:

Historically, it had been believed that non-coding DNA sequences were 'junk DNA' since they don't encode for proteins (beyond the sequences that are transcribed into functional non-coding RNAs, i.e., transfer RNA and ribosomal RNA). However, in the last years, it has been shown that non-coding DNA sequences play critical roles in regulating gene expression and genome function. For example, evolutionary conserved non-coding RNAs (ncRNAs) with regulatory roles on gene expression such as, for example, long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) have been mapped in non-coding DNA sequences, thereby evidencing the functional significance of these regions. In consequence, the conservative nature of certain non-coding DNA sequences evidence that mutations in such regions may have significant deleterious effects, and thereby they could have a negative impact on the fitness of the individual.

Answer:

Amylase

Explanation:

Answer:

B I think, Good luck

Explanation:

Answer:

A: The ability to maintain homeostasis

Explanation:

Hope this helps:)

Answer:

B. NAD+ is formed by a fermentation process in anaerobic respiration by the conversion of pyruvate into lactate and by simple oxidation of NADH in aerobic respiration.

Explanation:

Nicotinamide adenine dinucleotide (NAD) is an important coenzyme that may exist in two different forms: oxidized (NAD+) and reduced (NADH). The fermentation is an anaerobic oxidation-reduction reaction where pyruvate and NADH are reactants, while lactate and NAD+ are products generated by the oxidation of NADH to NAD+ and pyruvate to lactate, respectively. On the other hand, during aerobic respiration, NADH generated by glycolysis is oxidized to form NAD+ by the donation of its electrons to reduce pyruvate to lactate. Subsequently, NAD+ is reused in glycolysis (again) in order to generate more molecules of ATP.

Answer:

को 'वीर सिपाही' क्यों कहा

Answer:

The answer is C.The ocean surface temp

Explanation:

I'm not sure of it but Greenhouse gases pollution raise the rate of Global warming so i think the temp one works the most

Answer:

phospholipid

Explanation:

Phospholipids, triglycerides, fats, and oils are examples of a lipid. Therefore, option D is correct.

Fatty, waxy, or oily molecules are referred to as lipids. They are soluble in organic solvents but insoluble in polar solvents like water. Steroids, phospholipids, oils, and waxes are examples of lipids. They are usually referred to as fats and oils.

Since lipids may be broken down to provide significant amounts of energy, one of their primary biological purposes is the storage of energy. The structural elements of cell membranes and a number of the body's messengers and signaling molecules are also formed by lipids.

Cell membranes, cholesterol, blood cells, and the brain are just a few places where they can be found in the human body.

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Answer:

hope it helps you

Explanation:

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency (TLTE) measures the amount of energy that is transferred between trophic levels.

Answer:

Genetics are something that everyone (or only you) have. And adaptation is getting something from someone. Or Adapting to that.

Explanation:

Answer:Figure 4: Double-stranded DNA consists of two polynucleotide chains whose nitrogenous bases are connected by hydrogen bonds.

Explanation::))))))))))))))))))))))

Answer:

False

Explanation:

so they hanging walls above the plane of the fault (and over your head and the footwall is below the plane of the fault (and is under your feet)

Answer:

A water molecule consists of two hydrogen atoms and one oxygen atom. ... This molecular structure leads to hydrogen bonding, which is a stabilized structure in which a hydrogen atom is in a line between the oxygen atom on its own molecule and the oxygen on another molecule.

Explanation:

Answer:

This is not my answer, I found it on the internet.

No more solutes can be dissolved in a saturated solution at a given temperature and pressure.

Explanation:

A saturated solution is a solution that consists of maximum amount and concentration of the solute that is dissolved in the solvent.

The extra amount of solute cannot be dissolved in a saturated solution.

The saturated solution is composed of solute and solvent and solvent cannot dissolve more solute at some extent.

The carbonated beverage is an ideal example of saturated solution.

A saturated solution is one that contains the greatest concentration and amount of the solute dissolved in the solvent. In a saturated solution, the excess solute cannot dissolve.

Solvent and solute make up the saturated solution, and to a certain extent, solvent cannot dissolve more solute. A saturated solution is best exemplified by fizzy beverages.

A solute's solubility is the greatest amount of that solute that can dissolve in a solvent at a given temperature and pressure. The moles of solute per volume (mol/L) or the mass of solute per mass of solvent (g/g) are other common ways to express solubility.

There is typically a limit to how much solute can dissolve in a given amount of solvent, even for extremely soluble compounds. In general, temperature and pressure—for gases—as well as the energy components we have already covered affect a substance's solubility.

Therefore, A saturated solution is one that contains the greatest concentration and amount of the solute dissolved in the solvent. In a saturated solution, the excess solute cannot dissolve.

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Answer:

The digestive system produces different types of enzymes in order to convert proteins, fats and carbohydrates into smaller molecules and facilitate their absorption.

Explanation:

Once food is ingested, it must go through a process of digestion, which involves the conversion of food into smaller molecules, in order to facilitate its absorption at the intestinal level.

There are different enzymes, produced in the digestive system, for this purpose:

The main objective is to obtain the fundamental components of each food to be assimilated by the organism, via intestinal absorption.

Answer:

The correct answer is: a. A single mRNA can be translated simultaneously by several ribosomes.

Explanation:

Ribosomes are structures composed of ribosomal RNA (rRNA) that direct the process of translation, with the help of special proteins and key molecules called transfer RNA (tRNA) that are 'able to read' the codons in the mRNA. To help with this 'reading', ribosomes move through the mRNA strand as the translation moves forward, placing the anticodons presented by the tRNA molecules with their specific match - each mRNA codon - forming a strand of amino acids.

To ease the process in the cases where the molecule to be translated is a polypeptide, groups of ribosomes form a polysome and they all translate one single mRNA strand at the same time. Each of these ribosomes starts translating from the first codon and stop when the stop codon appears.

The true statement regarding the machinery of translation is ; ( A ) A single mRNA can be translated simultaneously by several ribosomes

Translation is the process of producing protein with the use of RNA ( i.e. the process of protein synthesis from  an mRNA template )  during translation the code found in the template is converted into an amino acid sequence.

Ribosomes are composed of rRNA which directs the process of translation with the proteins and key molecules such as tRNA.

Hence we can conclude that the true statement regarding the machinery of translation is A single mRNA can be translated simultaneously by several ribosomes.

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Answer:

it would be C, since an abiotic factor is a non-living thing that helps shape the ecosystem.

Explanation:

If you look at A it lists flowers, which are alive. If you look at B it lists bacteria, which is alive. C doesn't list anything thats alive. D lists insects, which are alive.

Answer:

c is the ans

Explanation:

Abiotic factors include water, sunlight, oxygen, soil and temperature.

Euglena are unicellular organisms classified into the Kingdom Protista, and the Phylum Euglenophyte. All euglena have chloroplasts and can make their own food by photosynthesis. They are not completely autotrophic though, euglena can also absorb food from their environment; euglena usually live in quiet ponds or puddles.

Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor. The flagellum is located on the anterior (front) end, and twirls in such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black.

The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod like structures throughout the cell. Color the chloroplasts green. Euglena also have an eyespot at the anterior end that detects light, it can be seen near the reservoir. This helps the euglena find bright areas to gather sunlight to make their food. Color the eyespot red.Euglena can also gain nutrients by absorbing them across their cell membrane, hence they become heterotrophic when light is not available, and they cannot photosynthesize.

The euglena has a stiff pellicle outside the cell membrane that helps it keep its shape, though the pellicle is somewhat flexible and some euglena can be observed scrunching up and moving in an inchworm type fashion. Color the pellicle blue.

In the center of the cell is the nucleus, which contains the cell's DNA and controls the cell's activities. The nucleolus can be seen within the nucleus. Color the nucleus purple, and the nucleolus pink.

The interior of the cell contains a jelly-like fluid substance called cytoplasm. Color the cytoplasm light yellow. Toward the posterior of the cell is a star-like structure: the contractile vacuole. This organelle helps the cell remove excess water, and without it the euglena could take in some much water due to osmosis that the cell would explode. Color the contractile vacuole orange.

The statements that describe RNA are ;

RNA and DNA are similar in some ways because they are both nucleic acids but the characteristics of RNA that makes it different from DNA is that RNA is mostly single stranded with it Nucleotides containing ribose instead of deoxyribose.

The RNA ( Ribonucleic acid )  nucleotides are composed of certain bases i.e. adenine, guanine, and cytosine also it contains uracil in place of thymine.

Hence we can conclude that the statements that describe RNA are ; Nucleotides contain the sugar ribose, Can be single stranded, The nitrogenous base uracil is used instead of thymine.

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Answer:

A complex food web is better than the simple food chain because the food web links together the relationships between a producer, consumer, and decomposers. Another reason why a complex food web is better than a simple food chain is that if a particular species is eliminated from a food web, the entire ecosystem has a lower chance of collapsing due to that loss. A food web can more readily react to changes in the environment that impact one or more species.

Hope this helps :)

Answer:

(Answers may vary.)

A complex food web is more important than a simple food chain for the survival of a community. The food web is more important because it is more intricate and adaptive than a food chain. A community houses many species. These species are dependent on each other for energy and food. So, there are multiple relationships of energy transfer involved.

A food chain is linear, which means that each predator has only one source of food. So the predator is vulnerable if the food source is depleted through disease or a change in environmental conditions. Whereas in a food web, each predator has many food sources. A complex food web provides multiple preys to species at a higher trophic level. As a result, a food web illustrates the feeding relationships between many species at different trophic levels in an ecosystem.

Explanation:

Answer for plato

Answer:

Low amounts of water

Explanation:

Deserts mean areas with low amounts of water and animals are not able to survive without water therefore  not having water is a limiting factor

(Limiting factors can also be said as limited by)

Answer:

this is not a very clear question T-T

Explanation:

wish i could help

Answer:

Explanation:

Afterwards, only females come ashore to nest; males almost never return to land ... Most females return faithfully to the same beach each time they are ready to nest. ... When the turtle has finished digging the egg chamber, she begins to lay eggs. ... Well over 90% of a sea turtle's life is spent in the water – feeding, mating, ...

Answer:

yes

Explanation:

just to be nice could you mark this as brainleist please?

Happy Holidays!

Answer:

Explanation:

Independent assortment law establishes that the alleles from two or more different genes distribute in gametes independently from each other. In other words, a gamete receives an allele from a gene that does not depend nor influence the allele of another gene in the same gamete. This can only be applied to independent genes. These genes segregate independently after crossing-over because they are located far away from each other.

Some other genes, however, are too close to each other and they do not segregate independently. These are the linked genes that do not exhibit an independent distribution, and they inherit together more frequently.  

Crossing-over between linked genes that are very close to each other in the chromosome is not that common. Crossing-over during meiosis occurs randomly in different positions all along the chromosome, and its occurrence frequency in the area between two genes depends on the distance between them. A short distance between genes is a very little target for crossing-over to occur, which means that only a few of them will happen, compared with the number of events between genes that are more separated between each other.  

Two genes that are very close will have a few recombination events and are strongly bounded.  

The more separated two genes are, the more chances of recombination there will be.  The closer they are, the fewer chances of recombination there will be.

Genes that express 50% of recombination frequency or more are not linked genes.  

To analyze the recombination frequency, we have to know that

1% of recombination = 1 map unit = 1centi Morgan = 1,000,000 base pairs.

And that the maximum recombination frequency is always 50%.  

The map unit is the distance between the pair of genes for which every 100 meiotic products one of them results in a recombinant one.  

In the exposed example we know that the distance of gene A from the mutation is 100 base pairs, and the distance of gene B from the mutation is 1000 base pairs.

1,000,000 base pairs ------------------ 1% recombination frequency

1000 base pairs -----------------------X = 0.001% recombination frequency

100 base pairs ------------------------ X = 0.0001% recombination frequency

According to the recombination frequency between the mutation and gene A, and between the mutation and gene B, we can assume that both genes are linked to the mutation, as they seem to be too close to it. They are so close, that their recombination frequency is very little.  

Answer:

The two most important factors determining the movement of ions across the cell membrane are: the permeability of the molecule in the membrane, and the existence of an energy source.

Explanation:

Ions are charged molecules that, no matter their size, cannot pass through the membrane by simple diffusion because of the nature of the lipid bilayer of the membrane.

Ions can move across the cell membrane in two different ways: passive transport and active transport. The disparity between these two relies on the usage of ATP (energy) - passive transport doesn't need ATP while active transport does. This is where the availability of a source of energy is important, because if there isn't, then active transport is impossible.

On the other hand, ions can move through the cell membrane without the use of energy by diffusing through the membrane with the help of specific membrane proteins that form channels for ions to pass through - and this is where permeability matters: if the cell membrane is permeable to a specific ion, it means that it has opened channels for that ion to use; and this ion will move from one fluid to the other (intracellular or extracellular) following its concentration gradient (for example, sodium is poorly concentrated in the inside of the cell, while is highly concentrated on the outside - this means that sodium will go through the membrane to get inside the cell and even the concentrations between the two fluids, but only if the membrane is permeable to sodium!).

Answer:

because they can be atoms

Explanation:

and they can also remove one or more electrons at a negatively charged.