Is natural selection a biological concept?

Answer:

Interphase

Explanation:

The number of nitrogen molecules that react with excess hydrogen to produce 2x10^10 ammonia molecules is 1×10¹⁰.

Stoichiometry is the calculation of a balanced chemical equation that determines the ratio between reactants and products in a chemical reaction.

Equilibrium in chemical equations obeys conservation principles and Dalton's model of the atom, such as the Law of Conservation of Mass, which states that:

                      mass of reactants = mass of products

In this sense, the equation must have equal weight on both sides of the equation.

In terms of reactions, both are in equilibrium 3H₂ + N2 ⟷ 2 NH₃

If 1 molecule of nitrogen produces 2 molecules of ammonia

2 x 10¹⁰ ammonia molecules will be produced if 2 x 10¹⁰ × 1/2= 1 × 10¹⁰ molecules.

So, the number of susceptible nitrogen molecules is 1 × 10¹⁰.

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Answer:

helium

Explanation:

balloon

A round body that contains DNA and regulates gene expression is the nucleus.

The nucleus is а membrаne-enclosed orgаnelle found in most eukаryotic cells. The nucleus is the lаrgest orgаnelle in the cell аnd contаins most of the cell's genetic informаtion (mitochondriа аlso contаin DNА, cаlled mitochondriаl DNА, but it mаkes up just а smаll percentаge of the cell’s overаll DNА content). The genetic informаtion, which contаins the informаtion for the structure аnd function of the orgаnism, is found encoded in DNА in the form of genes.

The function of the nucleus is to mаintаin the integrity of these genes аnd to control the аctivities of the cell by regulаting gene expression. Gene expression is the process by which the informаtion in а gene is "decoded" by vаrious cell molecules to produce а functionаl gene product, such аs а protein molecule or аn RNА molecule.

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The purpose of estuaries are being used for agriculture.

In order to provide cleaner waters for people and marine life, estuaries filter out silt and impurities from streams and lakes before they run into the ocean.

Estuaries serve as free-standing filters. Runoff from the land can carry sediments, fertilisers, and pollutants into estuaries, where a natural filtration mechanism can help keep some of them from entering the water supply.

Estuaries are valuable from a business standpoint, and the resources they provide are profitable for the tourist, catching fish, and recreational industries. Estuaries, which provide harbours and ports essential for shipping and transit, also support significant public infrastructure in their protected coastal waters.

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These characteristics of R-selected species perfectly:

r-selected species, also called r-strategist, species whose populations are governed by their biotic potential (maximum reproductive capacity, r). Such species make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O. Wilson; K-selected species—that is, species whose population sizes fluctuate at or near their carrying capacity (K)—make up the second strategy.

The production of numerous small offspring followed by exponential population growth is the defining characteristic of r-selected species. They require short gestation periods, mature quickly (and thus require little or no parental care), and possess short life spans. Unlike K-selected species, members of this group are capable of reproduction at a relatively young age; however, many offspring die before they reach reproductive age.

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Energy put into the inclined plane is 640 joules.

The ability to do a task with little to no waste, effort, or energy is referred to as efficiency. Being effective is using the resources you have as effectively as possible to attain your goals. Simply put, if there is no wastage and all procedures are optimizer, something is efficient.

When employees complete the proper jobs in the proper manner with the least amount of time and effort wasted, they are being efficient. Ultimately, increasing workplace productivity involves assisting workers in doing more with less.

Solution:-

Ronald applied 640 joules of energy to the inclined plane.

How to calculate the energy input

Efficiency, as we all know, is the ability to complete a task with little to no waste. In mathematics, it can be written as

Efficiency is defined as (output / input) 100.

The input energy can be found using the formula above as follows:

224 joules equal output work

35% efficiency

Work entered =?

Efficiency is defined as (output / input) 100.

35% = 224 / input

0.35 = 224 / input

multiply by cross

0.35 × input = 224

Add 0.35 to both sides.

Work input = 224 / 0.35

Work input = 640 joules

The energy input is 640 joules as a result.

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Answer:

worms, seeds, some nuts, other small animals if the bird is bigger, berrys

A sequence explaining the macromolecule title and its correct function:

Macromolecules are giant molecules with very long chains made up of simpler molecules (monomers). Compounds that include macromolecules are polymers and biomolecules (carbohydrates, proteins, fats, etc.).

Carbohydrates act as forming components of cell membranes, cell walls, and cell nuclei and are a source of energy for cells.

Protein is an important macromolecule that acts as an enzyme activity in cells, protein is also a means of transportation, hormones, and antibodies. Proteins and fats are the building blocks of cell membranes.

Nucleic acids are composed of DNA and RNA. These molecules are essential for healthy cells, and their presence is essential for DNA and RNA replication. Nucleic acids play an important role in transmitting genetic information, providing important coenzymes and energy sources, and regulating protein synthesis.

The question is multiple choice: (table in the picture)

The correct answer is A

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Answer:

Agarose gel electrophoresis is commonly used to separate DNA fragments following a restriction digest or PCR amplification. Fragments are detected by staining the gel with the intercalating dye, ethidium bromide, followed by visualization/photography under UV light.

Given that maternal mitochondrial mutations are transmitted by all of a mother's offspring, the pedigree shows that the gene is on a nuclear chromosome rather than a mitochondrial DNA.

The majority of cellular operations are carried out by nuclear DNA, which is DNA found in the nuclei of cells. The form of nuclear DNA is very different from that of mitochondrial DNA, which is related to animals, plants, and fungi.

In contrast, nDNA is more conserved than mtDNA, especially the nuclear rRNA genes. The highly conserved sequences in nuclear rRNA genes make them a potentially valuable source of genetic markers for resolving higher taxonomic levels for species.

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When red blood cells are placed into a solution with higher concentration as compared to their contents (eg pure water) will gain water by osmosis, burst and swell up.

Osmosis is termed as the net movement of water across with semipermeable membrane. This across of membrane, water will moves from an area of higher concentration to lower concentration.

If red blood cells are  placed in water, then water enters the cell by osmosis. Because the membrane is quite very weak the cell will burst as the volume and therefore the pressure in the cell will increases. Red blood cells shrink when it placed in the concentrated solutions of sugar as water moves out of them by the osmosis.

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Darwin's greatest contribution to science is that he completed the Copernican Revolution by drawing out for biology the notion of nature as a system of matter in motion governed by natural laws. With Darwin's discovery of natural selection, the origin and adaptations of organisms were brought into the realm of science.

Many variables affect the loss of normal joint flexibility including injury, inactivity or a lack of stretching. The range of motion will be influenced by the mobility of the soft tissues that surround the joint. These soft tissues include: muscles, ligaments, tendons, joint capsules, and skin.

Answer:

Dna Is a double stand made of two stands twist together

Explanation:

alleles is the alternative form of genes

genes are small section of dna

chromosome long.thread like structure which carries genetic information

Answer:

join

Explanation:

dab-uwgx-xcg the world of Hindi

Get at least 150 minutes (for instance, 30 minutes a day, five days a week) of aerobic exercise of a moderate intensity per week.

And Participate in muscle-strengthening exercises involving all major muscle groups at least twice each week.

The more physical exercise you engage in, the more benefits there will be for your health. a minimum of 150 minutes per week for instance, 30 minutes per day, five days per week of moderate intensity exercise like brisk walking. Or they require 75 minutes per week of intense action like jogging, running, or mountaineering.

Older persons should be as physically active as possible even if they are unable to complete 150 minutes of weekly moderate-intensity aerobic activity (for instance, 30 minutes five days a week).

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Changing an organism's DNA in order to transfer the resulting hybrid DNA into the organism to create new microbial genetic combinations.

DNA is inserted into an organism's genome as part of the GM technology. New DNA is introduced into plant cells to create a GM plant. The cells are typically cultured in tissue culture after which they transform into plants. The modified DNA will be passed along to the seeds that these plants generate.

The goal of genetic engineering is to alter the genes to increase the organism's capabilities beyond what is typical. The potential application of both of these technologies in nonhuman animals and plants has generated ethical debate.

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The fruit papaya includes the enzyme papain, which aids in the breakdown of proteins by severing the bonds between amino acids, gradually softening the meat.

As a result, it is perfect for use as a meat tenderizer because its enzyme gives meat a softer texture and more flavor. Meat would become more soft thanks to a protein-digesting enzyme that would reduce lengthy, fibrous protein chains into smaller protein chains. An enzyme will accomplish the same type of cutting, but on a smaller scale, just as repeatedly piercing a tough piece of meat with a fine blade will cut long protein strands into shorter, more delicate fibres.

Papaya and a few other plants contain the protein-cleaving enzyme known as papain. Complex molecules called enzymes are created by living things to catalyze (fast-track) chemical reactions inside of cells.

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Forensic scientists can determine the cause of death, the postmortem index, and any changes in the position of the corpse by observing the insect population and its developing larval stages.

As decay progresses more quickly, more blowflies, beetles, and mites are drawn to the body by the odors and bodily fluids that start to leak from it. The predatory flies and beetles that arrive later consume both the decomposing flesh and maggots.

Since other forensic techniques are equally or more accurate before this point than the bug evidence, the majority of cases involving a forensic entomologist are 72 hours or older.

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In MS Excel, the returned value from cell A49 is 4, which is based on the "count" function.

In MS Excel, a count function is used to calculate the number of entries in a cell or the number of fields that meet a predefined value set by the user.

In the given picture, 'NP*' is the predefined value that is set by the user, and therefore the value that would be returned in cell A49 based on the formula "[=COUNTIF(A43:A47, "NP*")]" is 4. It is because the calls A43, A44, A45, and A46 are containing the value "NP."

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False. Cytoplasm is not randomly distributed to haploid cells.

Haploid cells refer to cells that have a single set of chromosomes, as opposed to diploid cells that have two sets. The process of cell division, called mitosis, is responsible for the distribution of cytoplasm and chromosomes to the new cells. The cytoplasm and chromosomes are divided equally between the two daughter cells. The process is highly regulated and orchestrated to ensure that the cells have the correct amount of cytoplasm and chromosomes to function properly. It's important to note that, in some cases, in some organisms, such as fungi, there is a process called plasmogamy, where cells fuse, but their nuclei do not, resulting in a cell with multiple nuclei but a single cytoplasm.

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Answer:

23

Explanation:

At the conclusion of anaphase, each end of the cell has an identical and complete set of 46 chromosomes or 23 pairs of homologous chromosomes; they are still diploid. Telophase: Telephase begins once the chromosomes have completed separating and reached the opposite poles of the cell.

The  letter to my body letting it know how important MEIOSIS is for your body to function and carry out life is given below

Dear body,

I am writing to remind you of the crucial role I, Meiosis, play in your function and ability to carry out life. Without me, the process of creating genetically diverse gametes, the cells responsible for fertilization, would not be possible.

As you may know, my primary function is to reduce the number of chromosomes in a cell from the diploid number to the haploid number. This process, also known as cell division, is essential for the formation of healthy and viable gametes. Without the reduction of chromosomes, fertilization would not occur and the continuation of life would be impossible.

During my process, genetic diversity is also increased through the process of crossing-over, in which genes from different chromosomes can be exchanged. This leads to the formation of unique combinations of genetic information in each gamete, which is vital for the survival of future generations.

In short, my role in your body is to ensure the creation of healthy and genetically diverse gametes through the reduction of chromosomes and the process of crossing-over. Without me, fertilization and the continuation of life would not be possible. Please remember to take good care of me and the cells that I work with.

Sincerely,

Meiosis

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The number of protons in an atom is also referred to as the atomic number, so an atom of iron has 26 protons in its nucleus. The mass number of an atom is the sum of the number of protons and neutrons in the nucleus. So, to find the number of neutrons in the atom, we can subtract the number of protons (26) from the mass number (56):

56 - 26 = 30 neutrons.

So, the number of protons plus neutrons in the nucleus is:

26 protons + 30 neutrons = 56.

The characteristic of life that is demonstrated by the chemical reactions in a snake's body to produce venom is b. metabolism (and then response).

The capacity of response in evolutionary terms refers to the adaptative responses that a species have in order to face a challenging enviroment such as occurs in this case for the production of venom, which is a response to obtain foods in a very competitive enviroment (venom paralyze the prey in order to eat them during the coevolution between the prey and the depredator species).

Therefore, with this data, we can see that the capacity of response by metabolism in evolutionary terms is a type of ability that organisms have in order to obtain foods in an ever changing environment such as occurs in this case with the synthesis of venom by snakes.

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The form of cellular transport is being illustrated below in the given diagram is known as exocytosis.

Cellular transport may be defined as the process of movement of substances across the cell membrane either into or out of the cell. Cell transport includes passive and active transport. Passive transport does not require energy whereas active transport requires energy to proceed.

Exocytosis is the process through which cells move materials from within the cell into the extracellular fluid. It significantly occurs when a vesicle fuses with the plasma membrane, allowing its contents to be released outside the cell.

Therefore, the form of cellular transport is being illustrated below in the given diagram is known as exocytosis.

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Answer:

option b is correct pls mark brainliest if u r girl