What is the structure that moves sugar in minerals through the stem?

Answer:

D Natural Selection

Explanation:

Species choose mates to reproduce with naturally.

The scapulae, on the posterior thorax, are roughly triangular in shape. They have no attachment to the axial skeleton but are held in place by trunk muscles.

The bone that connects the clavicle (the collar bone) with the humerus (the upper arm bone) is the scapula (in plural, scapulae), or shoulder blades. The word 'scapular' originates from a Latin word meaning 'trowel' or 'shovel', because of its resemblance to a shovel.

The scapula is a triangular shaped bone that can be found posterior (at the back) to the thorax. Although they are not attached directly to the axial skeleton, they are necessary for the smooth motion of the upper extremity and several other motions associated with daily living, for example, shrugging of the shoulders. The pectoral girdle and chest muscles assist with the protraction and retraction and retraction of the scapula. It is also essential to the stability of the shoulder point as a whole.

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It is true that placental mammals give birth to more fully developed offspring than marsupial mammals and therefore have a greater chance of offspring survival. This helps to explain why placental mammals from North America displaced many native South American marsupial mammals when a land bridge formed between the two continents.

Therian mammals called placental mammals have developing placentas during pregnancy. The foetus is fed by the placenta as it develops inside the mother's uterus. Mammals with placenta give birth to children that are generally mature and large. Mammals that carry babies are the majority.

Hence, placental mammals give birth to more fully developed offspring than marsupial mammals and therefore have a greater chance of offspring survival.

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The first stage in the production of ATP via the oxidation of glucose molecules is referred to as glycolysis.

Glycolysis is the metabolic pathway that converts glucose into pyruvate, and in most organisms, occurs in the liquid part of cells, the cytosol. The free energy released in this process is used to form the high-energy molecules adenosine triphosphate and reduced nicotinamide adenine dinucleotide.

Glycolysis produces only two net molecules of ATP per 1 molecule of glucose. However, in cells lacking mitochondria and/or adequate oxygen supply, glycolysis is the sole process by which such cells can produce ATP from glucose.

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it means ur diff lollllll

:)

Explanation:

About 71% of the sunlight that reaches the Earth is absorbed by the surface of the earth and atmosphere.

The capacity to make different forms of light visible to human sight makes light energy a sort of kinetic energy. Light is referred to as electromagnetic radiation that is produced by hot things like the sun, lasers, and lightbulbs.

Photons, which are tiny energy packets, are present in light. Photons are created when the atoms of an item undergo a heating process; this is how photons are created. The heat excites the electrons, which leads to their producing more energy. A photon is produced when the energy is released, and as the substance heats up, more photons are produced.

Therefore, 71% of the sunlight that reaches the Earth is absorbed by the surface of the earth and atmosphere.

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1 An artery carries blood away from the heart,a vein Carrie's blood to the heart

Answer:

1. An artery carries blood away from the heart; a vein carries blood to the heart.

Explanation:

An artery carries away oxygen-rich blood from the heart to other body parts, whereas a vein takes blood low in oxygen back to the heart for oxidation.

Laser hair treatment, specifically laser hair removal, is most effective on individuals with dark, coarse hair.

This is because the laser targets the pigment, known as melanin, in the hair follicles. The concentrated light energy from the laser is absorbed by the melanin, which then converts it into heat.

This heat damages the hair follicle, inhibiting future hair growth. Dark, coarse hair contains higher amounts of melanin, making it an ideal target for the laser.

On the other hand, individuals with light, fine hair or hair with low melanin content may not respond as well to laser hair treatment, as there is less pigment for the laser to target and absorb.

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Answer: Choice A

Explanation:

There is no statement that is NOT part of the Darwin-Wallace theory of natural selection.

The Darwin-Wallace theory of natural selection includes the following four statements:

Therefore, the answer to your question is that there is no statement that is NOT part of the Darwin-Wallace theory of natural selection.

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Answer:

GGA, it is the dominant one.

correct answer is B; Gly-Ser-Arg.

Answer:

Fibroblasts form scar tissue and surround foreign material in the body.

Answer: Fibroblasts form scar tissue and surround foreign material in the body.

If two loci act independently during meiosis, they are most likely found on different chromosomes. If two loci are on the same chromosome, they can be inherited together and are not considered independent. The correct option for the given question is c) .

This statement is true because loci are the position of a gene on a chromosome and meiosis is a process that involves the separation of chromosomes. During meiosis, homologous chromosomes pair up and separate during the first meiotic division. The separation of homologous chromosomes is random and independent of each other.

This means that the genes located on different chromosomes separate independently during meiosis. The genes located on the same chromosome can segregate together if they are close to each other, which is called linkage.

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Answer:

Hydrogen atoms are the part of the glucose molecule that provides electrons in cellular respiration.

OAmalOHopeO

According to the given statement Eukaryotic mRNA species can be purified using this method.

The correct option is C.

Any cell or organism that has a distinct nucleus is said to have been eukaryote. The nucleus of a eukaryotic cell, which contains a well chromosomes (bodies holding the genetic material), is protected by a nuclear membrane.

Eukaryotic cells can also have other organelles outside the nucleus, such as mitochondria, plastids, the endoplasmic, the Golgi apparatus, and lysosomes. Each of these organs carries out a distinct task that is essential to the survival of the cell.

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The complete question is -

Researchers often want to isolate a certain type of RNA. For some RNA species, this can be accomplished via affinity chromatography, using beads coated with chains of poly-deoxythymidine (poly-dT). The desired RNA will stick to the beads while unwanted RNAs will flow through the column. The retained RNA can then be eluted.

What RNA species can be purified using this method?

A. bacterial mRNA

B. bacterial rRNA

C. eukaryotic rRNA

D. eukaryotic mRNA

The adaptation of significantly reducing the rate of metabolism in the European salamander, Proteus anguinus, evolved through natural selection as individuals with this trait had higher survival rates and reproductive success in environments with limited food supply.

The process of natural selection led to the adaptation of the European salamander, Proteus anguinus, to significantly reduce its rate of metabolism when food is scarce. Natural selection is the mechanism by which individuals with advantageous traits for their environment have higher survival rates and reproductive success, leading to the increased prevalence of those traits in subsequent generations.

In the case of the salamander, the limited food supply in underground caves created a selective pressure favoring individuals that could conserve energy during periods of food scarcity. Salamanders with the ability to reduce their metabolic rate had a higher chance of survival as they could survive longer without food, making them more likely to reproduce and pass on this adaptive trait to their offspring.

Over time, through the process of natural selection, the individuals with the ability to lower their metabolic rate became more prevalent in the salamander population. This adaptation allowed them to better cope with the limited food supply in the caves, maximizing their chances of survival and reproductive success.

Therefore, the ability to significantly reduce the rate of metabolism in response to scarce food evolved in the salamander population as a result of natural selection, enabling them to thrive in their underground cave habitats.

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A) Chromatin structure

B) Cis-acting DNA sequences

C) Nucleosome remodeling

D) Ribosomal binding affinity to mRNA

E) Transcription factor binding to enhancer element

Choice D Ribosomal binding affinity to mRNA is not a mechanism for controlling transcription. The remaining possibilities are all various transcriptional regulatory systems.

because transcription comes after ribosome binding. As a result, transcription is not regulated by the ribosome's affinity for mRNA. However, it is a translational rule. In eukaryotes, the ribosome binds to the Shine-Dalgarno sequence. Only affinities matter here. The synthesis of proteins varies depending on the affinities. However, it plays no part in the level of transcriptional regulation.

Changes in chromatin structure control how genes are transcribed. Because phosphate groups have a negative charge, DNA is negatively charged. Because these proteins include positively charged amino acids like arginine and lysine, histones are positive charge proteins. Thus, positive and negative charges will attract and create the structure of the chromatin. The positive charge on the histones is thus neutralized by changes including acetylation, methylation, phosphorylation, and ubiquitination on the histone tail, which causes the DNA in this area to unravel so that Polymerase can quickly bind and transcription to start. Transcription is inhibited by some modifications. As a result, transcription can be regulated by chromatin structure.

Cis-DNA acting elements are those that share a regulatory sequence with the gene, putting them close to the promoter where they can control transcription. These elements are recognized by transcription factors, who work with the polymerase to control transcription.

An further method of controlling transcription is the nucleosomal remodeling complex. The nucleosome can be removed from the promoter sequence in an ATP-dependent manner by remodeling complexes like SWI/SFI. It will enable polymerase to access it. As a result, it is also a method for controlling transcription.

Either a cis- or trans-acting enhancer element. Enhancers are often located thousands of base pairs before the promoter sequence. They create a loop to engage with polymerase or transcriptional factors. These enhancer elements generate loops that control transcription and are identified by certain factors.

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1. Mercury (Hg)

2. Antimony (Sb)

3. Lead (Pb)

4. Nitrogen (N)

5. Potassium (K)

6. Sodium (Na)

Self-cloning, or parthenogenesis, is a reproductive strategy in which an individual can produce offspring without the need for fertilization by a male.

In captivity, some species may experience changes in their environment that can trigger self-cloning as a response to stress or lack of mating opportunities.

This is more likely to occur in species that have the ability to switch between sexual and asexual reproduction depending on environmental conditions.

Self-cloning can also be a result of genetic mutations or abnormalities that prevent normal sexual reproduction from occurring. In some cases, individuals that are unable to mate successfully may resort to self-cloning as a means of ensuring their genetic lineage continues.

Additionally, some species are naturally capable of parthenogenesis, and this ability may become more prevalent in captive populations due to a lack of genetic diversity and mating opportunities.

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The most effective way to prevent DNA mutation from UV radiation is: (C.) Avoid UV radiation by wearing sunscreen.

Mutation is the change in the normal sequence of DNA. The agents that induce these mutations are called mutagens. The mutations can be harmful as they can hamper the normal functioning of the living body. Some mutations however do not cause any significant changes and they are therefore called silent mutations.

Sunscreen is a a cream or liquid applied to the skin that prevents the harmful radiations of the sun to enter the body. They protect from the sun's UV-A and UV-B radiations.

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Answer:

B. Hypothesis

Explanation:

Hypothesis is an explanation about a phenomenon that is proposed. This explanation is further subject to a test to make a scientific hypothesis.

scientific hypotheses is usually based on previous observations that is not satisfactorily explained with available scientific theories but need further clarifications.

After an hypothesis is formulates it is then subjected to test to ascertain if the hypothesis will be accepted or rejected. When rejected further investigation can be carried out to be sure of the outcome.

Answer:

Average weight of a DNA base pair is 650 Da. And you can find the molecular weight of DNA by using a formula, no. of basepairs*650 Da.

If u take the DNA that has information to code particular protein I presume that DNA has higher molecular weight than the protein product

Answer:

Plants utilize hydrotropism to bend their roots towards moistened areas of soil in the presence of moisture gradients (Takahashi et al., ; Moriwaki et al., ). Because roots play an important role in water uptake, hydrotropism may help plants to obtain water efficiently under drought conditions.

Answer:

I actually don't know they asking g o o g l e

Explanation:

Answer:

am i supposed to fill in the blank?

Explanation:

Taq polymerase enzyme important for efficiency in PCR because it is thermostable polymerases that remain active at high temperatures (90 -95  degree Celsius) a beyond the denaturation temperature of DNA.

PCR :

Polymerase chain reaction (PCR) is a laboratory technique for rapidly amplifying millions to billions of copies of a specific segment of DNA, which can then be used for further research.

Taq polymerase is a DNA polymerase derived from bacteria called Thermus aquaticus, which are naturally thermophilic and is a thermostable polymerases that remain active at temperatures higher than the temperature at which DNA is denatured. This allows PCR to be used on DNA samples without the need to add new DNA polymerases after each cycle.

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The number of genotypically different kinds of haploid cells a cell can produce depends on the number of different alleles it has for each gene. Without this information, it is not possible to determine the exact number of genotypically different haploid cells that a cell can produce.

The number of genotypically different kinds of haploid cells that can be produced is determined by the number of possible gametes that can be formed from the parent cell through meiosis. During meiosis, homologous chromosomes pair and undergo recombination, which shuffles the genetic information between chromosomes. Then, the chromosomes separate during the two meiotic divisions, resulting in four haploid cells that are genetically distinct from each other and from the parent cell.

The number of possible gametes that can be formed is equal to 2^n, where n is the number of unique chromosome sets in the parent cell.

For example, if the parent cell has a haploid number of 6 (n=6), then the number of possible gametes is 2^6 = 64.

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Explanation:

An antibiotic made by microorganisms and modified by chemists is called. semi-synthetic. The antimicrobials produced by some molds and bacteria are generally called. antibiotics