Why do some kinds of mutations cause greater changes in proteins than others? (Consider the different types of mutations and how they effect proteins made differentely)

Biodiversity increases the stability of an ecosystem and contributes to the health of the biosphere. As They provide clean air, fresh water, medicines and food security. They also limit disease and stabilize the climate.

Greater biodiversity in ecosystems, species, and individuals leads to greater stability.

Climate has fostered the evolution of a diverse set of ecosystems that are adapted to handle the temperature, humidity, precipitation, and seasonal changes they are in.

Healthy ecosystems regulate the Earth's climate, filter air and water, recycle nutrients and mitigate the impact of natural disasters. Healthy ecosystems also provide a renewable supply of timber, fibre, fish and other valuable resources .

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C.

Density is mass divided by volume.

See details:

[tex]D=\frac{m}{v}=\frac{100}{25}=4.0[/tex]

Answer:

It is option a. Astronomy

Explanation:

The sentence that correctly compares the sulfur isotopes 32S and 35S is

32S has 16 neutrons, whereas 35S has 19 neutrons.

Isotopes are two or more atom types that have a differing number of neutrons in their nuclei despite having the same atomic number (number of protons in their nuclei), placement in the periodic table, and chemical element. Although the chemical properties of each isotope of a given element are nearly identical, they differ in their atomic weights and physical characteristics.

The word "isotope" is derived from the Greek words isos, which means "equal," and topos, which means "place," which means "the same location." The name refers to the fact that various isotopes of the same element occupy the same spot on the periodic table.

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The conservation of genes that encode specific morphological characteristics between different species gives an evidence that supports understanding of evolution.

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These various variations of a gene are referred to as alleles. For instance, two alleles may occur at one specific locus, one of which codes for the cytosine base and the other for the thymine base. One copy of the human genome is inherited from each parent. We are hence referred to as diploid organisms.

The relative frequency of an allele at a certain locus in a population, represented as a fraction or percentage, is known as gene frequency or allele frequency. The percentage of chromosomes in the population that carry that allele relative to the whole population or sample size is what is being discussed.

The frequency of an allele in a population is referred to as its allele frequency. It is calculated by dividing the number of gene copies by the number of times the allele occurs in the population. All the copies of every gene in a population make up the gene pool of that population.

Leading textbooks on genetics and evolution define an allele as a different variation of the same sequence of nucleotides at the same location on a long DNA molecule. "The chromosomal or genomic location of a gene or any other genetic element is called a locus and alternative DNA sequences at a locus are called alleles.

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Answer:

Deforestation of the Amazon rainforest in Brazil has hit a six-year high, the national space agency, Inpe, reports.

Some 3,988 square kilometres (1,540 square miles) of land were cleared in the region between January and June.

Last year, 3,088 square kilometres of the rainforest were destroyed during the same period.

The Amazon plays an essential role in the planet's oxygen and carbon dioxide cycles, absorbing vast amounts of greenhouse gases from the atmosphere.

Environmentalists blame the increasing levels of deforestation on Brazil's right-wing president, Jair Bolsonaro, who has rolled back environmental protections.

Brazil's environment ministry said it had been forceful in fighting environmental crimes, although in a statement it failed to mention the spike in deforestation.

Nucleoli are present during interphase. The interphase stage is where cells spend the majority of their time. The nuclear envelope envelops the nucleus at this time.

The nucleolus is a spherical component of the cell's nucleus whose main job is to assemble and generate ribosomes. Additionally, ribosomal RNA genes are translated into the nucleolus.

The nucleolus is typically only visible in cells that are in the interphase. The nucleolus is seen to shrink as the cell approaches mitosis along with the condensation of chromosomes, and it eventually vanishes as RNA production ceases. The nucleus may contain one or more nucleoli, which are black, compacted areas.

Therefore, the interphase is the stage in which nucleoli are present.

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The pair of words that has each bone from axial and appendicular skeleton is: cranium femur.

Cranium is the skull bone that protects the brain from any mechanical injury. It belongs to the axial skeleton. Femur is the thigh bone, It is the thickest, strongest, and longest bone of the body. It is the part of appendicular skeleton.

Axial skeleton is the composition of bones that make up the core of the body. There are a total of 80 bones in the axial skeleton. This includes the bones of the skull, ear, neck, back, and the ribcage. Whereas the appendicular skeleton comprises the bones of the hands and legs.

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The net charge on protein  glu-ala-ser-lys-val-arg-phe-ile-his having pH 6.5 is 0

Out of all given amino acids all of them are triprotic except Glutamic acid, Lysine, Arginine and Histidine , hence only these amino acids participate in net charge of protein.

Writing the rest protein chain-

glu-lys-arg-his

Writing the pka value for all,

pKa for NH₃⁺ = 9.62

pKa for COO⁻ =2.34

pKa for glu =4.25

pKa for lys=2.18

pKa for arg=12.45

pKa for his= 6

Given pH= 6.5 which is greater than the pKa of his , glu ,lys and COO⁻, so all of them got deprotonated.

So, charge will be,

-1( COO⁻) +1(NH₃⁺)+1 ( NH₃⁺ of arg) - 1(COO⁻ of glu)

= 0

So, the net charge will be zero for the given sequence of amino acid of the protein.

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Systole and diastole are based on the contraction state of the atria is referred to as a true statement.

This is referred to as the  two upper chambers which are present in the heart and their role is to receive blood from the veins which is then sent to the ventricles.

Systole and diastole are the terms in the circulatory system which are used to denote period of relaxation of the heart muscle such that diastole means ventricular filling while systole represents ventricular ejection which is therefore the reason why true was chosen as the correct choice.

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Systole and diastole are the contraction and relaxation of cardiac muscle during its cycle. Even when the ventrile contraction is more potent and last longer than the atrial ones, the terms Systole and diastole are based on the contraction state of both, the atria and the ventrile. False.

Systole is the moment in which the heart contracts and sends blood. This contraction can occur in the ventricle or the atrium.

During contraction, blood is ejected from the atrium to the ventricles. Then, from the ventricles to the arteries (pulmonary or aorta)

The systolic pressure can be measured at this point. This is the maximum pressure exerted when the heart contracts.

During diastole, the heart relaxes and lets blood enter the cavity.

When the muscles relax, new blood enters and fills first the atrium and then the ventricles again. And the cycle begins all over again.

Diastolic pressure can be measured at this point. This is the minimal pressure taken when the heart is at rest.

Usually, when talking about systole and diastole, we refer to the vetrincle.

According to this information, the statement is false.

The terms Systole and diastole are based on the contraction state of both, the atria and the ventrile.

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Who are they (people in the options)?

• Watson and Crick, = Two scientists that discovered that the DNA is double-stranded and has a unique structure.

• Rosalind Franklin, = She used x-ray crystallography to produce an image of DNA.

• Gregor Mendel ,= He is an Austrian monk that experimented on garden peas and formulated the now known "Mendelian Genetics".

ANSWER: A. = Rosalind Franklin despite producing a photo of DNA through x-ray crystallography failed to make a model for the DNA. Watson and Crick made the model out of Rosalind Franklin's images.

An allele is one of at least two renditions of DNA grouping (a solitary base or a portion of bases) at a given genomic area. An individual acquires two alleles, one from each parent, for any given genomic place where such variety exists. Assuming the two alleles are something similar, the individual is homozygous for that allele.

Although individual people (and every diploid creature) can have two alleles for a given quality, numerous alleles might exist in a populace level, and various people in the populace might have various sets of these alleles.

What are the functions of Allele?

Alleles add to the organic entity's aggregate, which is the presentation of the life form. A few alleles are predominant or passive. At the point when a life form is heterozygous at a particular locus and conveys one prevailing and one latent allele, the creature will communicate the predominant aggregate.

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Invasive species can impact a local ecosystem by crowding out native species (option A), this is the case when the invasive species share the niche with native species and has the advantage of the luck of predators in that new habitat.

Answer:

the answer is A.) that can best cope with existing environmental conditions and like to reproduce

Answer:

Major Steps of Glycolysis:

Glycolysis involves a sequence of steps that can be grouped into three important reactions: phosphorylation of glucose, splitting of the six-carbon molecule into two three-carbon molecules, and the energy harvesting reactions.

Answer and Explanation: 1

The products of Glycolysis are as follows:

Pyruvic Acid

Two molecules of NADH (Nicotinamide Adenine Dinucleotide)

Two molecules of ATP (Adenosine Triphosphate)

Although 4 ATP are produced, 2 ATP are spent during phosphorylation of glucose (conversion of glucose to fructose 1,6-bisphosphate), thus, there is a net gain of only 2 ATP molecules.

Simple diffusion and Facilitated diffusion are the two primary categories of diffusion.

Facilitated diffusion is the passive transfer of molecules from the area of higher concentration to the area of lower concentration across the cell membrane using a carrier molecule.

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The two statements do the data best support the relationship between atmospheric pressure and weather is option C The weather is usually sunny when air pressure is high. and D The weather tends to change when the air pressure changes.

Atmospheric pressure is a trademark of climate. while a low-stress machine moves into a place, it commonly leads to cloudiness, wind, and precipitation. high-pressure structures usually cause a fair, calm climate.

Areas of excessive and occasional strain are due to ascending and descending air. As air warms it ascends, main to low pressure at the surface. As the air cools it descends, main to high strain at the surface. As temperature will increase, the air expands, and consequently the molecules of air own extra electricity. because of this, they exert greater stress on gadgets. therefore air strain will increase with the boom in temperature.

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Negative electrical signal cause signals to move like a wave in the cells i.e., nerve cells thus the first statement is correct.

Nerve cells create an assortment of electrical signals to transmit and store data. As a rule, they deliver a negative potential: resting state potential (-40 to -90 mV). An activity potential transitorily nullifies the negative resting potential making the transmembrane positive.

Two mechanisms have advanced to transmit nerve signals. First, for communication between cells, the electrical signals by and large are changed over into chemical signals passed on by little flag-bearer atoms called neurotransmitters.

Second, inside cells, electrical signals are passed on along the cell layer.

Moment, for communication between cells, the electrical signals for the most part are changed over into chemical signals passed on by little courier particles called neurotransmitters.

The electrical signal transmission inside neurons is based on voltage contrasts (i.e., possibilities) that exist between the interior and the exterior of the cell.

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Answer: ok well, When released into the atmosphere, carbon dioxide works like a blanket, warming the earth above normal limits.

Explanation: I would say d because when it’s burned it makes a heat trapping gas.. I think. But that would be my best bet

Answer: If mitosis stopped in your body, then you would start to have a heart attack, and every cell in your body would cease to duplicate itself therefore, you might suffer severe consequences especially because the heart would have to beat itself, and so forth. Your brain would not be directly affected or your bones, however your blood cells would be affected.

Cell division during mitosis is necessary for replacing damaged or dying cells, as well as repairing damaged or worn-out cells that occur naturally. The main mechanism behind growth is this kind of cell division.

Without mitosis, there wouldn't be any cell division or growth. The fact that genetic information cannot be passed on is most essential. All cell processes would be significantly impacted.

You might also suffer serious consequences, as your heart would have to beat by itself, among other things. Your bones or your brain wouldn't be immediately impacted, but your blood cells would.

Therefore, Every cell in your body would stop replicating itself if mitosis halted, which would induce a heart attack.

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Answer:

A

Explanation:

Since the main source of phosphorus is found in rocks, the first step of the phosphorus cycle involves the extraction of phosphorus from the rocks by weathering. 

Answer:

neither they nor my father lost anything into tag questions

The number of half-lives passed after 2.5 billion years will be 3 half-lives.

We are aware that the challenge of attempting to date a substance is one that scientists encounter frequently. This is due to the fact that we frequently need to know the precise time period to which an item may be legitimately attributed. This has assisted us in determining the age of a great deal of the stuff we have in the modern world.

Half-life is the amount of time it takes for a sample to contain just half of the radioactive material that was originally there. We have been informed that K-Ar dating, or the decay of potassium-40 into argon-40, occurs. Potassium-40 has a 1.25 billion-year half-life. Finding the number of half-lives that have passed after 3.75 billion years is the current challenge at hand.

The number of half-lives can now be stated to be:

3.75 ×[tex]10^{6}[/tex] years/ 1.25 ×[tex]10^{6}[/tex] years

= 3 half-lives

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transportation accounts for 27% of all carbon emissions.

industry is responsible for the majority of greenhouse gas emissions. The primary contributor to transportation-related greenhouse gas emissions is the burning of fossil fuels for our cars, trucks, ships, trains, and airplanes.

You can use the following approach to lessen your transportation's carbon footprint.

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Decomposers get their energy by eating dead plants or animals.

Decomposers are the one who break down decaying organisms, through the process of decomposition. Decomposers break apart complex organic materials into more essential substances like water and carbon dioxide, and simple compounds mostly nitrogen, phosphorus, and calcium. These Organic matter is recycled in an ecosystem by the help of decomposers.

Hence , The last of the trophic level is occupied by decomposers, such as detritivores. They feed on dead plants and animal matter and helps in recycle of the product .

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Answer: B: the names of chemicals found in one brand of diet soda. Quantitative means that a number should be involved in the data. All of the other options involve a number of some sort, but names do not fall into that category. Therefore, that is the answer.