IV - amount of caffeine
DV-heart rate of children

Rigor mortis usually sets in about nine hours after death occurs. It takes roughly 12 hours for rigor mortis to become fully established and about another 12 hours for it to start fading away as the body begins to decompose.

Correct answer is : True

Rigor mortis usually sets in about two to six hours after death occurs. It takes roughly 12 hours for rigor mortis to become fully established and about another 12 hours for it to start fading away as the body begins to decompose. Rigor mortis, or body stiffening, is the result of a decrease in ATP after death.

ATP is required for the muscles to relax, and without it, they become rigid. Rigor mortis can last up to 48 hours, after which the body becomes increasingly pliable as the muscles decompose.

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The mitochondrial DNA itself will vary between students because each of us inherited it from our moms; but since the same region is being amplified, the sequences of our PCR result will be the same.

The sequences of our PCR findings will be the same because the same region is being amplified, despite the fact that each student's mitochondrial DNA is distinct because we all received it from our mothers. Each cell has hundreds to thousands of mitochondria, which are found in the fluid surrounding the nucleus (the cytoplasm).

Chromosomes present in the nucleus hold the majority of DNA, while mitochondria only store a small quantity of their own DNA. The term "mtDNA," or mitochondrial DNA, is used to describe this genetic material. 16,500 DNA base pairs, or around 5% of the total DNA base pairs in human mitochondria, make up.

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Answer:

1/ Climate change

2/ Asteroid impacts

3/ Massive volcanic eruptions

4/ Sun explodes

etc. (all the things above are most likely to happen but alien invasion or things like that is also a theory that you can add depends mostly if you like it or not)

Answer:

Genetic Changes

Moths passed their color to the next generation. Eggs from light moths developed into light moths and dark moth eggs turned to dark adults. The dark color was caused by a mutation in the DNA of a single moth, and the mutated gene had been passed to all its offspring.

Explanation:

HOPE IT HELPS..

Genetic Changes causing the change in the color of the moths an this is the main reason in the color change of moths.

The main characteristics of moths is that it passes their color to the next generation. Eggs from light moths developed into light moths and dark moth eggs turned to dark adults. The dark color was caused by a mutation in the DNA of a single moth, and the mutated gene had been passed to all its offspring.

The light moths are highly visible to predators against the dark tree, but the dark moths are nearly invisible to predators as their color gets camouflaged with the color of the dark trees. So, it is likely that more light moths will be captured by the predators, causing the population of light moths to decrease. The dark moth population will increase because there are more of them to reproduce. This phenomenon illustrates Darwin's study of natural selection.

Therefore, Genetic Changes causing the change in the color of the moths an this is the main reason in the color change of moths.

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Answer:

The CORRECT answer is C.) clone the recombinant DNA in a biological vector.

Explanation:

I just took the quiz on Edg!

**It wouldn't hurt to mark brainliest! <33

The most efficient procedure that scientists can use to obtain more recombinant DNA for a particular trait is to clone the recombinant DNA in a biological vector.

Traits can be defined as any characteristics which is controlled by genes.

Some examples of traits or characters are:

So therefore, the most efficient procedure that scientists can use to obtain more recombinant DNA for a particular trait is to clone the recombinant DNA in a biological vector.

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To transfer the cloned normal RB1 gene into osteosarcoma cells, one can perform either transformation or transfection, which falls under the transformation/transfection bin.

To test whether osteosarcoma cells carry two RB1 genes, one can perform an immunoblot analysis, which falls under the immunoassay bin. This analysis involves separating cellular proteins based on size and charge using gel electrophoresis and detecting the presence of the RB1 protein using a specific antibody. If two bands appear, it indicates the presence of both RB1 genes.
To test whether osteosarcoma cells produce pRB protein, one can perform an immunofluorescence assay, which also falls under the immunoassay bin. This assay involves staining the cells with a specific antibody against pRB and visualizing the fluorescence signal using a microscope. If a signal is detected, it indicates the production of pRB protein.
To transfer the cloned normal RB1 gene into osteosarcoma cells, one can perform either transformation or transfection, which falls under the transformation/transfection bin. Transformation involves using a non-viral method, such as electroporation, to introduce the gene into the cell, while transfection involves using a viral vector to deliver the gene. The success of gene transfer can be confirmed using PCR or sequencing. To determine if the addition of a normal RB1 gene will change the cancer-causing potential of osteosarcoma cells mutations, one can perform a genomic library screening using labeled probes, which falls under the genomic library screening bin. This involves screening a library of genomic DNA from the osteosarcoma cells with a labeled probe specific to the RB1 gene. The presence or absence of mutations in the RB1 gene can be detected based on the hybridization signal.

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The correct answers are: Ferns, Hornworts, Mosses, and Liverworts.

The plants that fit the given description are:

Therefore, the correct answers are: Ferns, Hornworts, Mosses, and Liverworts.

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If one has molecular weight in Daltons  than diffusion or osmosis take place by molecules move around.

What is diffusion?

difgusion is a type of cellular transport. Since the diffusion does not require the energy (ATP) to take the  place, it is considered as a form of passive transport. There are three types of  diffusion: there are -simple diffusion, osmosis and facilitated diffusion. During the time of diffusion, molecules move from an area of high concentration to an area of the low  concentration.

Explanation -

The rate of diffusion is the  affected by the molecular weights of the molecules that is diffusing . The heaviest the solutes is, the slower the molecules moveing  around. Slower the  moving molecules diffuse at it   slower rate than faster the  moving ones. Molecules are  that are lighter move in  faster and therefore have an  increases speed of the diffusion.

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Answer:

d

Explanation:

The whether  occurrence as described in the question is caused by the cold front.

In discussing about weather, a front refers to a region in which there is a transition between air masses on the earths surface. The occurrence of various types of front is the reason behind different types of whether patterns.

The violent thunderstorms followed by a few days of colder weather is caused by a cold front.

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Darwin noticed plant and animal breeders using artificial selection as method of choice (Option C is correct).

The expression artificial selection makes reference to the process of crossing plants or animals in order to obtain desired phenotypic traits in offspring, which is sued in genetic improvement with breeding purposes.

In conclusion, Darwin noticed plant and animal breeders using artificial selection as method of choice (Option C is correct).

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If the cause of death is due to water pollution, then the water with dead bivalves should be removed to prevent contamination and keep the remaining bivalves alive. On the other hand, if the cause of death is decaying matter or dead organisms, then the dead matter or organisms would need to be removed.

Therefore, depending on the cause of death, the teacher would most likely need to remove dead bivalves, water with dead bivalves, dead organisms, decaying matter, or contaminants to keep the remaining bivalves alive. The answer requires more than 100 words because it needs to cover all the possible causes of death and solutions to keep the remaining bivalves alive.

he apical surface of the shell whorls are flattened between the deeply impressed sutures and the sub median shell periphery, which gives the shell a somewhat angular appearance.

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Evolutionary biologists do not view the notion of biological "progress" as valid, as evolution does not have a set goal or endpoint. Biological changes occur in response to environmental pressures, not towards an ultimate "improvement."

Evolutionary biology recognizes that organisms change over time in response to environmental pressures, but there is no inherent direction or goal to this change. While humans often think of evolution as a linear progression towards greater complexity or improvement, this is not a scientific view of the process.

Evolution is a series of random mutations and natural selection that allow certain traits to become more or less common over time. This means that there is no universal standard of "progress" in evolution. Different organisms may evolve to better suit their specific environment, but this does not necessarily mean they are "better" in any objective sense. Evolutionary biologists view progress as a human construct, not a scientific one.

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Chytridomycota, Ascomycota (ascomycetes), Basidiomycota (chytrids), and Zygomycota (Zygomycetes). Hence, the ancestors of this group share a relationship with one or more other groupings.

A paraphyletic group is any group of any size and systematic rank that shares a single common ancestor but does not, in contrast to a monophyletic group, contain every descendant from this ancestor.  Undoubtedly the most convincing example of a paraphyletic group is the lineage that gave rise to birds, the Reptilia, which includes turtles, tuataras, lizards, snakes, crocodiles, and reptiles that resemble dinosaurs. The Reptilia became paraphyletic as a result of the emergence of a separate phylum for birds (Aves). A transition from monophyly to paraphyly is brought about by a collection of new or derived features or qualities (synapomorphic characters).

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Answer:

light energy

Explanation:

Answer:

It's light energy.

Explanation:

can you make me brainliest please

Answer:

Please find the diagram of the general structure of amino acids attached.

Explanation:

Proteins are one of the four major biomolecules in living systems. As rightly stated in this question, they are building blocks of the body. However, proteins are biological polymers made up of monomeric units called AMINO ACIDS. A long chain of these amino acids make up a protein molecule.

An amino acid generally consists of a central carbon atom called ALPHA CARBON, attached to an amine group (-NH2), a carboxylic acid group (-COOH), and a side chain (R side chain). All 20 amino acids that exists in nature have this general structure but differs only in the type of SIDE CHAIN (R group) they possess i.e. all amino acids have a different R side chain.

Please find the diagrammatic representation of the general structure of amino acids as an attachment.

Answer:

:)

Explanation:

Answer:

The answer would be A. Base pairs are broken apart.

Explanation:

First, the base pairs break apart so that new DNA can be added. Then, the replication fork forms. After, protein is formed from the DNA, and lastly, the DNA is checked for errors.

If I am wrong, please correct me.

During DNA replication, the replication fork forms. The correct option is D.

The initial stage of DNA replication is the development of the replication fork. The double-stranded DNA molecule unwinds and splits into two distinct strands, forming the Y-shaped replication fork.

Origins of replication are specific locations where the separation takes place.

The other phases of DNA replication can start once the replication fork has established.

These include base pair dissociation (A), DNA error detection (B), and protein synthesis from DNA (C), which takes place through the processes of transcription and translation, which follow DNA replication.

Thus, the correct option is D.

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Your question seems incomplete, the probable complete question is:

Which step happens first in DNA replication?

O

A. Base pairs are broken apart.

B. The DNA is checked for errors.

C. Protein is formed from the DNA.

D. The replication fork forms.

Answer:

B

Explanation:

Vine and Matthews noticed there was a symmetrical pattern of magnetic stripes on either side of the mid ocean ridges. In addition when the basalts of the sea floor were dated, they were found to be the same age at similar distances away from the ridge on each side.

With the initial number of colors set to 2 and the number of turtles set to 100, it takes a few generations for one of the colors to go extinct.

Setting the initial number of colors to 2 and the number of turtles to 100 in a simulation means that there are 100 turtles, each with one of two different colors. This could represent a population of animals with different genetic traits.

In each generation, the turtles will interact with each other and some may reproduce, passing on their traits to their offspring. This means that the number of turtles of each color may change over time.

In some cases, one of the colors may become more common, while the other color may become less common or even go extinct. This can happen if the turtles with one color are more successful at reproducing or if they have traits that give them an advantage in their environment.

The number of generations it takes for one color to go extinct will depend on the specifics of the simulation and the interactions between the turtles. It could take a few generations or many generations for one color to disappear completely.

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Like other molecular motors, the rotation of a bacterial flagellar apparatus requires a source of energy. Used to provide energy for this type of molecular motor is c. proton gradient across membrane

This proton motive force is generated by the electron transport chain during respiration or photosynthesis, which creates a difference in proton concentration between the cytoplasm and the extracellular environment. The flagellar motor contains a protein complex called the stator, which spans the cytoplasmic membrane and harnesses the proton motive force to drive flagellar rotation. As protons flow through the stator, they cause a conformational change in the rotor, which drives the rotation of the flagellar filament.

ATP is not required for flagellar motion. In contrast, other molecular motors, such as myosin and kinesin, use the hydrolysis of ATP to power their movement. The use of the proton motive force as an energy source for bacterial flagella is a remarkable example of how cells can exploit gradients to perform work. So therefore the rotation of a bacterial flagellar apparatus requires a source of energy, and the energy is derived from the c. proton gradient across the membrane.

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Ebola viruses make many copies of themselves by combining host and virally encoded enzymes with host cell architecture rather than by any type of cell division.

The virus completes a set of steps when infecting each individual cell.

The following are the steps during the replication of Ebola Viruses:

The several steps in the life cycle of the Ebola virus, such as host cell attachment and entrance utilizing glycoproteins, absorption by endocytosis, replication of the RNA genome by the viral polymerase enzyme, transcription and translation of the Ebola genes, and finally viral release.

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Photosynthesis occurs in two stages, light-dependent reactions and light-independent reactions. Water and sunlight enter light-dependent reaction. Oxygen exits light-dependent reaction. Carbon dioxyde enters Calvin cycle. Glucose exits Calvin cycle. ATP and NADPH exit light-dependent reaction and enter calvin cycle. ADP and NADP+ exit  calvin cycle and enter light-dependent reaction.

Photosynthesis is the process through which plants take sunlight to produce organic products. It is composed of two main stages, light-dependent, and light-independent reactions.

During light-dependent reactions,

During light-independent reactions,

Both processes alternate to help the cell conserve energy and matter.

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Answer:

Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.

Explanation:

part of the microscope is needed to be adjusted to have better contrast when viewing a specimen under the microscope is condenser.

A microscope is a lab tool used to study items that are too small to be seen with the human eye. The study of small structures and objects under a microscope is known as microscopy. Microscopic refers to something that, without the use of a microscope, is undetectable to the eye. There are many distinct kinds of microscopes, and they can be categorised in several ways. One option is to explain how an instrument interacts with a sample and generates images, for as by passing an electron or light beam past the sample in its optical path, measuring photon emissions from the sample, etc.

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The organ the tissue sample was collected from is a reproductive organ such as testes or ovary.

Metaphase is a stage of mitosis and meiosis, that follows prophase and comes before anaphase, during which condensed chromosomes become aligned before being separated.

Metaphase occurs once in mitosis but occurs twice in meiosis, which gives it the suffix metaphase I and II.

Meiosis is a kind of cell division of a diploid cell into four haploid cells, which develop to produce gametes. In essence, meiosis is for reproductive purposes solely.

According to this question, a scientist studying a tissue sample from a sheep under a microscope finds some cells in metaphase II. This means that the tissue sample emanated from a reproductive organ.

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Answer:

Yes

Explanation:

The input energy converter is Student's digestive system and the two output energies involved in a student eats a hamburger are mechanical energy, thermal energy.

In the context of a pupil ingesting a hamburger, allow perceive the enter energy converter and output energies concerned with this technique.

The enter power converter on this scenario might be the pupil's frame, in particular the digestive system. The act of eating includes the conversion of capability power within the food into chemical strength thru the technique of digestion. The digestive device breaks down the complicated molecules inside the hamburger into much less difficult paperwork that may be absorbed and utilized by the body.

As for the output energies, actually one in every of them is mechanical electricity. When the student chews and swallows the hamburger, the digestive device converts the chemical power received from the meals into mechanical power to help in propelling the meals thru the digestive tract.

Another output power is thermal electricity. During digestion, the chemical reactions that stand up to break down the meals launch warmth power. This thermal electricity contributes to preserving the student's body temperature and is eventually dissipated into the surroundings.

To summarize:

Input energy converter: Student's digestive system

Output energies:

Mechanical energy - worried with the method of chewing and propelling food via the digestive tract.

Thermal energy - is launched as a byproduct of the chemical reactions for the duration of digestion, contributing to body temperature upkeep.

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answer.

earth

explane.

the Earth is always fastest because the is always rolling

Answer:

Mercury

Explanation:

Mercury is the fastest planet, which speeds around the sun at 47.87 km/s. In miles per hour this equates to a whopping 107,082 miles per hour. 2. Venuses the second fastest planet with an orbital speed of 35.02 km/s, or 78,337 miles per hour.