Explain the DNA Replication diagram above with all the great terms from this chapter. This is a BIG ANSWER.
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DNA replication or duplication is the process of making copies of DNA by the cell. It involves a series of steps and various enzymes required for the completion of the process.
What is the process of DNA replication?DNA replication has several steps along with some proteins called replication enzymes as well as RNA.
The process of replication is as follows:
Replication fork: It is made by unzipping DNA into two strands. It is done by break of the purine and pyrimidine bond accomplished by an enzyme called DNA helicase.Primer binding: After this unzipping, a short piece of RNA which is called as a primer binds to the 3' end of the DNA strand. The primer bound is the starting point for replication. Primers are generated by the enzyme referred to as DNA primase.Elongation: DNA polymerase aids in the elongation process in DNA replication. As the replication moves in the 5' to 3' direction on the leading strand, the newly formed strand will be continuous. But in the case of the lagging strand replication starts by binding with multiple primers which involve DNA polymerase and then adds pieces of DNA, called Okazaki fragments, to the strand between primers. Termination: On the formation of both the strands, Exonuclease removes all RNA primers followed by proofreading and then the adhesion of the Okazaki fragments by enzyme DNA ligase.Thus, these were the steps involved in the process of DNA replication.
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You’ve found some fossil bones while digging in your backyard. could they be dinosaur bones? using carbon dating, you determine that 3% of the original radioactive carbon-14 is still radioactive. (the rest has decayed into nitrogen-14.) how many half-life cycles has it gone through? approximately half-life cycles.
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Since 3% of the original radioactive carbon-14 is still radioactive, the carbon-14 radioisotope has undergone five half-lives.
What is Half-Life?Half-life of a substance is the time it takes for half the original amount of the substance to decay.
Radioactive elements decay spontaneously according to their half-lives.
Since 3% of the original radioactive carbon-14 is still radioactive, the number of half-lives undergone is determined as follows:
After one Half-Life, 50% remains
After two half-lives, 25% remains
After three half-lives, 12.5% remains
After four half-lives, 6. 25% remains
After five half-lives, 3.125 % remains.
Therefore, the carbon-14 radioisotope has undergone five half-lives.
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Answer: 5 Half Life Cycles
Explanation: edg 2023
Which prey would be unique to the short-eared owl of Cuba?
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Answer:
A
Explanation:
Gull bones are long and those would be prey based on what other answers are saying
A bird-watcher sees a small yellow bird in a tree. explain to the bird-watcher how he can use a dichotomous key to identify the bird. assume he does not know anything about dichotomous keys. then, write two steps of a dichotomous key that would be helpful for the bird-watcher.(2 points)
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At each step, a dichotomous key divides proof of identity into two mutually preferential options. To use the key, the scientist begins at the top and determines which of the two options applies to their organism. The key directs them to a new question based on their response.
What is dichotomous key?This key aids in the identification of organisms by directing the attention to identify the organisms.
The steps to use a dichotomous key are:
Organize the characteristic of the organism.Divide the specimen.Draw a dichotomous key either text-based or graphical.Check out for the unknown organism.Thus, these are the steps that the bird-watcher can use for identifying the bird.
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me animation on constructing the water cycle. Once you have completed a correct water cycle, include a paragraph of the process, and how certain steps of the process may affect you.
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0)“If Jupiter was not there, there could be more terrestrial planets”. Explain how
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what would happen if there was no Jupiter?
There would be minor changes in the planets' orbits about the Sun, but very little else. However, Jupiter does a great job of shepherding and absorbing small objects in the Solar System. With Jupiter gone, the main effect on Earth would be an increase in the rate of impacts from asteroids and other space flotsam.
3. Describe how nutrient cycles can interact in the cycling of matter:
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Nutrients and matter in a biogeochemical cycle move through various spheres including the atmosphere, biosphere, hydrosphere and lithosphere.
What is nutrient cycles?Nutrients move through the ecosystem in the nutrient cycle or biogeochemical cycles. This cycle is a pathway by which a chemical element moves or recycles through the biotic and abiotic factors of an ecosystem.
It is inclusive of the biotic factors, or living organisms such as plants animals, and others, as well as abiotic or nonliving such as air, soil, and water.
it moves through abiotic and biotic elements such as water moves through water body to the atmosphere by evaporation and moves back to earth and hydrosphere by rain and also used by living organisms.
Thus, Nutrients and matter in a biogeochemical cycle move through various spheres including the atmosphere, biosphere, hydrosphere and lithosphere.
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Help meeeee plssssss
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Which of the following does NOT
cause the urban heat island
effect?
A. impervious surfaces
B. air conditioning units
C. fuel combustion
D. lots of vegetation
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Answer:
D. Lots of vegetation
Explanation:
Urban heat islands form when cities replace natural land cover with dense concentrations of heat-absorbing pavement, buildings, and other surfaces. This has the impact of raising energy prices (for example, air conditioning), air pollution levels, and heat-related sickness and mortality.
Explanation:
it's d lots of vegetarian
Scientists at the university of florida recently said they had grown a plant related to mustard greens in what kind of soil, though the plant was less healthy than local crops?.
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The type of soil in which the scientists had grown a plant related to mustard greens is : Moon soil
What is moon soil ?Moon soil is the type of soil which is found in the moon. scientists at the university have discovered that plants can grow in moon soil after they had successfully grown a plant related to mustard greens although with slight differences in quality in moon soil after almost a decade of research been carried.
Hence we can conclude that The type of soil in which the scientists had grown a plant related to mustard greens is Moon soil.
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This is how a SIM medium looks after 24 hours and the addition of indole reagent. Is the unknown bacterium positive or negative for H2S production, indole production, and motility
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In the test tube pink colour shows that it is indole positive and H2S positive bacteria and it is non motile.
What is the indole positive?Within seconds of introducing the reagent, a pink color appears in the reagent layer on top of the agar deep, indicating a positive indole test. The reagent layer will stay yellow or slightly hazy if the culture is indole negative.
When an organism converts sulfur to hydrogen sulfide, the hydrogen sulfide reacts with iron to generate ferric sulfide, a black precipitate. The presence of blackening in the medium suggests a reduction in sulfur, which is a +ve sign.
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Which statement correctly describes the pH of water?
A. The pH of water increases as its temperature increases.
B.The pH of water is neutral.
C.Water contains more hydrogen ions, giving it a higher pH.
D.water is neutral and has a pH of 0.
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What are the two sub kingdoms of kingdom plantae?
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Answer:
The answer is Cryptogams and Phanerogams.
Explanation:
The kingdom Plantae is divided into two subkingdoms: Cryptogamae and PhanerogamaeKingdom plantar is the kingdom of plants
It is divided into two sub kingdoms
Cryptogamae PhanerogamaeCryptogamae are flowerless and seed less where less phanerogamae are not
How are Glucose, Proteins, and Fats used to make new molecules? And what types of molecules are made?
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Answer:
Sometimes known as glycans, there are three common and principal types of polysaccharide, cellulose, starch and glycogen, all made by joining together molecules of glucose in different ways. It has been estimated that 50% of the world's organic carbon is found in one molecule; cellulose.
4. Define free energy, and explain how its change is calculated.
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We can calculate the change in free energy for a reaction under nonstandard conditions by using the ΔG = ΔH - TΔS equation.
How do we calculate chnage in free energy?Change in gibbs free energy of any reaction will be calculated by uisng the below equation as:
ΔG = ΔH - TΔS, where
ΔH = change in enthalpy
T = temperature of reaction
ΔS = chnage in entropy
By putting all given values we can calculate the gibbs free energy of the reaction, and negative sign of energy shows the spontaneity of the reaction.
Hence by using the enthalpy, entropy and temperature we can calculate the free energy change.
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Free energy refers to the energy in a system that is free to do work i.e. the internal energy minus any energy that is unavailable to perform work.
Why is use of free energy?Free energy is used to determine how systems change and how much work they can produce. It is expressed in two forms: the Helmholtz free energy F, sometimes called the work function, and the Gibbs free energy G.
The free energy change of a reaction can be calculated using the following expression: ΔG∘=ΔH∘−TΔS∘. where ΔG=free energy change.
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The organs of the urinary system include:.
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The main organs of the urinary system are the kidneys, renal pelvis, ureters, bladder and urethra.
How do you think our bodies process food?
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Which of the following is true of the first trophic level of all ecosystems?
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Describe where genes are located and the function of genes.
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According to the research, genes are structures located in the chromosomes whose function is the storage of genetic information.
What are genes?It is the minimum unit of genetic information that contains the DNA of a living being.
They are found within the chromosomes and each gene occupies a specific position, called a locus, which encodes a specific functional product, such as a protein.
Therefore, we can conclude that according to the research, genes are structures located in the chromosomes whose function is the storage of genetic information.
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A population of plants growing in a field is examined over a period of years. The plants have either white or yellow flowers.
What best explains the observations?
A. White flowers increase the plant's fitness, so the population is under directional selection.
B.Yellow flowers increase the plant's fitness, so the population is under directional selection.
C.Yellow flowers increase the plant's fitness, so the population is under disruptive selection.
D.White flowers increase the plant's fitness, so the population is under disruptive selection.
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Thebest explanation for the observation is that white flowers increase the plant's fitness, so the population is under directional selection.
What is genetic variation?Genetic variation refers to the differences that exists in the genes of organisms of the same species or different species.
The gene for flower color in the plants has two alleles for yellow and white flower color.
Over time, the proportion plants with white-colored flower increased while that of yellow decreased.
Therefore, the best explanation for the observation is that white flowers increase the plant's fitness, so the population is under directional selection.
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HELP ASP
Looking at the picture, describe the biotic and abiotic factors you see.
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Answer:
abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organismsBiotic and abiotic factors are what make up ecosystems. Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere. The way these components interact is critical in an ecosystem
Biotic: humans, plants, animals
What is the function of the acetone used in paper chromatography to separate photosynthetic pigments
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Answer:
It dissolves pigments, allowing them to travel up the paper strip.
what materials are organisms made of?
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Explanation:
Living organisms are made of a mixture of carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorous. ....
could anyone please make me a educational comic about the carbon cycle?
you can do phosphorus or nitrogen too, just choose one of the three
please and thank you!!
Answers
Carbon comes from
- organisms decomposing after they die
- within CO2 that all animals breathe out
- human activities that burn fossil fuels like factories, driving cars, flying planes
Carbon is used by
- plants to make sugar (from CO2 —> glucose)
- animals as a nutrient to build macromolecules for their bodies (amino acids, nucleotides, carbohydrates, fats/lipids)
Draw the different sources contributing to the build up of carbon in the air, then illustrate arrows showing how the CO2 is brought back for use by plants or how carbon is used directly by organisms consuming dead material. Then demonstrate these events again releasing carbon, repeating the cycle.
explain how root hairs help plants to absorb a lot of water in a short time
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Imagine a balloon is made from a membrane that's permeable to water but not sucrose molecules. If the balloon is filled with a pure water and then placed in a beaker of 50% sucrose solution, then the balloon will
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The size of the balloon would increase.
Cytokinesis is when the cell
separates into two identical
daughter cells. Cytokinesis is
which phase of cell division?
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Answer:
D.) Last
Explanation:
If cytokinesis is when the cell separates into two identical daughter cells, this means that DNA replication and mitosis must have already occurred. The duplication of the parent cell's DNA and organelles is what makes the daughter cells identical. These processes must occur before the cell literally divides.
explain human digestive system
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Answer:
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion.
Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
Define the term resolving power
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Another definition:
Resolving power is a measure of the clarity of the image; it is the minimum distance two points can be separated and still distinguish as two points. It helps small molecules that can’t be seen with a plain eye
Bison grazing on grasses growing in a meadow represent Group of answer choices a consumer eating a producer. two producers exchanging energy. anaerobic metabolism. a predator eating a consumer.
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you see a dog with completely black fur. what can you say about fur color genetics in this dog?