Answer:
The water from the source is very clean whereas the water at the mouth (end) of the river is less clean because it carries sediment, trash, etc with it as the water travels along the river. Water can also be contaminated with salt water for example if the water mixes with an ocean.
Label the diagram
Transcription and Translation (Protein Synthesis)
Answer:
1-3 is transcription while 4-8 is translation.
Explanation:
The labeling of the diagram is as follows:
1: DNA. 2: mRNA.3: Codon.4: tRNA. 5: Anticodon.6: Amino acid.7: Ribosome. 8: Protein. What is Protein synthesis?Protein synthesis may be characterized as a type of biological process through which amino acids are sequentially arranged in large numbers and form a specific functional protein through the involvement of rRNA, tRNA, mRNA, and numerous enzymes.
When it comes to the process of protein synthesis, there are two steps, i.e. Transcription, and translation. Transcription involves the conversion of DNA into mRNA within the nucleus of the cell. While translation involves the conversion of mRNA into a functional protein. This step takes place in the cytoplasm of the cell.
Therefore, the labeling of the diagram is well mentioned above.
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Which phrase describes an example of homeostasis?
A. Maintenance of a healthy blood pressure
B. Exposure of skin to harmful rays
C. Overproduction of white blood cells
D. Loss of blood due to an injury
Which of the following is NOT part of an investigation?
A. pseudoscience
B. data
C. equipment
D. method
Pseudoscience is not part of an investigation. The correct option is A.
What is investigation?An investigation is a methodical, scientific procedure that involves observation, data collection, and analysis in order to provide an answer to a question or find a solution to a problem.
The following components of an investigation are typically present: data, apparatus, and procedure.
Claims, beliefs, or behaviors that are presented as scientific but do not have a foundation in empirical data or adhere to the scientific method are referred to as pseudoscience. Science that is conducted legitimately does not include pseudoscience.
Thus, the correct option is A.
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Which step happens first in translation?
A. The amino acids form peptide bonds.
• B. A tRNA molecule attaches to a codon.
• C. The ribosome reaches the start codon.
• D. The amino acid pulls apart from tRNA.
Answer:
A. A tRNA molecule attaches to a codon.
Explanation:
The first step of translation is that a tRNA molecule attaches to a codon. These tRNAs (transfer RNAs) bring the amino acids to the ribosome - rRNA complex, where they connect to the codons and are arranged into a full protein.
Explain the life cycle of plasmodium species?
Answer:
Explanation:
life cycle of plasmodium species
Which body system determines whether the body has excess water that must
be removed by the excretory system?
A. Endocrine system
OB. Circulatory system
OC. Digestive system
OD. Nervous system
Answer:
Nervous system
Explanation:
This is because the nervous system sends messages to the excretory system to release body waste from the body
A cross was carried out between pure breed tall pea plant with pure dwarf pea plant and F¹ progeny was obtained
Answer:
This is an example of a genetic cross in biology, specifically a monohybrid cross. The F1 progeny are the offspring of the cross between the purebred tall and purebred dwarf pea plants, and they exhibit a phenotype (observable physical characteristics) that is a combination of the traits of both parents. This type of cross allows for the examination of dominant and recessive traits, as well as the study of inheritance patterns.
Explanation:
Answer: A cross was carried out between pure breed tall pea plants with pure dwarf pea plants and F¹ progeny is obtained.
Explanation:
When tall plants were crossed with the dwarf pea plants in Mendel’s experiment, then in the first generation i.e. F1 progeny, only tall plants were obtained and no dwarf plant was obtained.
In F2 progeny, there were both tall and dwarf pea plants. The ratio of dwarf and pea plants was found to be 3:2.
In F2 progeny, there were both tall and dwarf pea plants. The ratio of dwarf and pea plants was found to be 3:2 which confirmed that in F2 progeny, both the characteristics were inherited and the tall character of the pea plant was found to be dominative and dwarf to be recessive. This was the law of segregation which says that when plants of different traits were crossed, then in the first progeny only the dominant character was observed whereas, in the F2 progeny, both dominant and recessive traits were obtained.
which organ system are you using when you feel your heart beating?
Answer:
circulatory
Explanation:
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Which is the first step that geologists must do to compare rock layers at distant locations?
Answer:
compare a layer at one location to layers at other locations
Explanation: took the quiz
6. How is prokaryote reproduction similar to mitosis? How is it different? (2) 7. A scientist is studying a type of thermophilic prokaryote. Are these most likely archaea or bacteria? How do you know? (2) Part 2: Eukaryotes 8. What two features do algae have that make them like plant cells? (2) 9. Why do you think scientists had problems deciding if euglenoids were more similar to plants or animals? (2)
Prokaryote reproduction is similar to mitosis in that it involves the replication and division of the genetic material, followed by cell division.
Explaining Procaryotes, and answers to other parts of the questionProkaryote reproduction is similar to mitosis in that it involves the replication and division of the genetic material, followed by cell division. However, prokaryotes do not have a nucleus, so the process is simpler and does not involve the formation of a mitotic spindle or the separation of chromosomes into daughter nuclei.
Thermophilic prokaryotes are most likely archaea, as they are known to thrive in extreme environments such as hot springs and deep-sea vents, whereas bacteria are more commonly found in moderate environments.
Algae have two features that make them like plant cells: they contain chloroplasts for photosynthesis and have a cell wall made of cellulose.
Scientists had problems deciding if euglenoids were more similar to plants or animals because they possess characteristics of both groups. Like plants, they have chloroplasts and can perform photosynthesis, but like animals, they can move using a flagellum and can consume other organisms for nutrients. This led to some debate about how to classify them, but they are now generally considered to be a type of protist.
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Teddy mixed 3.0 moles of sodium hydroxide and 6.0 moles of ethanoic acid. did he make a buffer solution? explain your answer using a blacked equation.
Since hydrochloric acid and sodium hydroxide neutralize each other, the pH of the resultant solution is 7, and NaCl is created as a resultant. It is created by combining a strong base (NaOH) and a strong acid (HCl). A weak acid or basic, as well as its salt, should be used to make the buffer solution. There is no buffer solution that can be made by combining sodium chloride with water. As a result, sodium chloride and water cannot be utilized to create a buffer.
[tex]NaOH(aq) + HCl(aq)\\[/tex] → [tex]NaCl(aq) + H2O(l)[/tex]
A buffer solution can be made by combining a weak acid solution with a solution of salts of its conjugate base.
Both an acid and a base must be present for a buffer to be able to neutralize both acid and base while maintaining the pH of the solution constant. A weak acid can neutralize bases in a buffer, while a conjugate base can neutralize acids.
To guarantee that there is an adequate conjugate base in the solution, a salt solution of the conjugate base must be added directly. Weak acids do not dissociate sufficiently to provide a sufficient conjugate base in the solution.
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What is a solution's absorbance, if its molarity is 0.18M?
If a solution's molarity is 0.18M, then its absorbance will be 0.5.
What is molarity?A chemical species' concentration in a solution, specifically the amount of a solute per unit volume of solution, is measured by its molar concentration. The number of moles per liter, denoted by the unit symbol mol/L or mol/dm³ in SI units, is the most often used unit denoting molarity in chemistry.
Molarity is directly proportional to the absorbance of any solution, if molarity increases, absorbance also increases. Therefore, if a solution's molarity is 0.18M, then its absorbance will be 0.5.
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If left alone, vines can eventually ‘choke’ a tree from getting the sunlight it needs to survive. What is the best description for this relationship?
A. Consumer - consumer
B. Producer - Consumer
C. Predator - Prey
D. Parasite - Host
Answer: D. Parasite - Host
Explanation:
The vines are taking the nutrients away from the tree, but not necessarily consuming the tree
after during the activity, give your own definition of culture
During which step of aerobic cellular respiration is carbon dioxide produced?
What relationship can be determined from the following information: . The radioactive isotope iodine 131 has a half-life of 8.1 days and emits 0.8 MeV (milli-electronvolts) of energy . The radioactive isotope phosphorus 32 has a half-life of 14.3 days and emits 1.7 MeV of energy . The radioactive isotope phosphorus 33 has a half-ife of 25.5 days and emits 0.25 MeV of energy . The radioactive isotope sulfur 35 has a half-lfe of 875 days and emits 0.2 MeV of energy Multiple Choice O The longer the half-lIfe, the more energy emitted by the particles O The longer the hif ife the les energy emited by the porticles O Redotoopes of he same elemen must enst the same amountof energy in their emissions of the same element must emit the same amount of energy in their emissions and decay at the same rate. O Adjusted for time, radioisotopes emit the same amount of energy in their emissions O Energy and half-life are not directly related.
Option E: energy and half-life are not directly related, is the relationship determined from the given information about the radioactive isotope.
Half-life is the amount of time required by a nucleus if a radioactive isotope to lose half of its radioactivity. Each radioactive isotope has its own particular half-life that cannot be altered because of external and alternating factors like those of quantity and form of the material.
A radioactive substance is highly unstable and thus loses its energy by decaying. This means that the energy lost is directly proportional to the amount of the substance present. But energy of a radioactive substance is independent of it's half-life of decaying. This means that option E is the correct choice.
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The following questions refer to the diagram below. Fill in the blanks and answer the
questions below.
reactants
Progress of the reaction
1. Is this reaction endergonic or exergonic?
2. Which has more free energy, reactants or products?
3. Which letter refers to the change in free energy of the reaction?
The given reaction is an exergonic reaction. In an exergonic reaction, the reactant's free energy is more than the products.
Why is the the reactant's free energy more than the products?This is because an exergonic reaction releases energy as the reactants are converted to products. The released energy comes from the potential energy stored in the chemical bonds of the reactants. As a result, the products have less free energy than the reactants, since some of the potential energy has been released as usable energy (such as heat or work) during the reaction. The difference in free energy between the reactants and products is k.
The letter W refers to the change in free energy of the reaction.
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Question 10 of 10
In which two processes do cells make a small amount of ATP for every
glucose molecule split in two?
A. Glycolysis
B. Fermentation
C. The electron transport chain
D. The Krebs cycle
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Glycolysis and Kreb's cycle are two processes in which cells make a small amount of ATP for every glucose molecule split in two.
Describe glycolysis.
The process by which glucose is broken down to provide energy is known as glycolysis. It generates two pyruvate molecules, ATP, NADH, and water. There is no need for oxygen throughout the process, which occurs in the cytoplasm of a cell.
An overall net of two ATP molecules will be created during fermentation and glycolysis. To prevent glycolysis from ceasing, fermentation will produce 2 ATP, and glycolysis will produce 2 ATP through substrate level phosphorylation. There is no electron transport system involved in fermentation, and no ATP is produced during the fermentation process itself. Two ATP, six NADH +H+, and two FADH2 were created during the Krebs cycle. Due to the two pyruvic acid molecules that enter the system for every glucose molecule, two ATP molecules are produced.
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The scientist know know exactly the earth formed
A) No answer text provided
B) No answer text provided
C) False
D) True
Answer:
False
Explanation:
Earth has always existed, but scientists don't know exactly when. They believe that Earth formed around 4.5 billion years ago, but they aren't sure where it came from.Follow=Followlike=like
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How did the rise of discriminatory groups affect the failure of reconstruction in south carolina?.
The advancements gained in South Carolina during Reconstruction were hampered by the emergence of hate groups like the Ku Klux Klan.
The development of hate groups like the Ku Klux Klan in South Carolina contributed significantly to Reconstruction's defeat. Black Americans were prevented from exercising their newly acquired political and social rights, such as voting and running for office, by these groups via the use of violence and intimidation. They also aimed to reinstate the previous social structure and uphold white supremacy. The ineffectiveness of the federal government in enforcing Reconstruction laws and safeguarding Black Americans from violent retaliation gave these groups more power and ultimately led to the breakdown of Reconstruction in South Carolina and other Southern states.
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In a baseball game, joseph hits a ball to the outfield. When does the ball have the most potential energy?.
Answer: When the ball is at its highest point, it has potential energy. When the ball is falling towards the table, it has kinetic energy. It has the most kinetic energy at the very end of its descent when it is moving the fastest.
Explanation:
Using same information about Hemophilia , cross a woman whose blood clots normally with a man has hemophilia . Show genotypic and phenotypic percentages of the generation .
Normal-blooded women and men with hemophilia produce offspring with a percentage of 50% carrier girls (XᴴXʰ) and 50% normal boys (XᴴY).
Determining the percentage of offspring genotypesTo find the genotype of the offspring, first determine the genotype of the parents. From the data in the question, genotypes can be made as follows:
Normal blood woman = XᴴXᴴHemophiliac man = XʰYAfter the genotype is found, then cross the genotype:
Mother × Father
XᴴXᴴ × XʰY
Xᴴ × Xʰ, Y
--> Xᴴ × Xʰ = XᴴXʰ (carrier woman)
--> Xᴴ × Y = XᴴY (normal man)
From the results of the cross above, two offspring were produced, namely a carrier female and a normal male. So it can be concluded that the percentage of offspring is 50% carrier women and 50% normal men.
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impacts of invasive species impacts the carbon cycle? and how?
Answer:
Explanation:
Invasive plants tend to deplete soil health in grasslands by reducing biodiversity and eliminating native species. The shift towards an invasive plant monoculture is accomplished through a variety of strategies including competition for soil moisture, changing soil chemistry, shading and space.
it releases more carbon dioxide into the atmosphere than native plants, according to new research in Science.
Which system is shown in the diagram on page 53?
The system shown in the diagram above is a blood circulation system.
What is a blood circulation system?The blood circulation system, also known as the cardiovascular system, is a complex network of blood vessels and organs that work together to transport oxygen, nutrients, hormones, and other vital substances to the cells and tissues of the body. The main components of the blood circulation system are the heart, blood vessels (arteries, veins, and capillaries), and blood.
The heart acts as a pump, continuously contracting and relaxing to circulate blood throughout the body. Blood is pumped from the heart through the arteries, which carry oxygenated blood to the tissues and organs. After the blood delivers oxygen and nutrients, it returns to the heart through the veins, which carry deoxygenated blood back to the heart to be oxygenated again. The exchange of oxygen and nutrients between the blood and the tissues takes place in the tiny blood vessels called capillaries.
The blood circulation system is vital for maintaining the health and function of the body, as it delivers oxygen and nutrients to cells, removes waste and carbon dioxide, and helps to regulate body temperature and maintain fluid balance. Dysfunction of the blood circulation system can lead to various health problems, such as heart disease, stroke, and cardiovascular disease.
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Question- what type of circuit is in the diagram?
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What is the final product of the photosynthesis process?
The seed plants became dominant during the late ___ when the climate became ___
a. Cretaceous; drier
b. Carboniferous; drier
c. Carboniferous; wetter
d. Cretaceous; wetter
e. Cambrian; wetter
Answer:
The correct answer is d. Cretaceous; wetter.
Explanation:
During the late Cretaceous period, the climate became wetter, which allowed seed plants to become dominant. The increased rainfall and moisture provided favorable conditions for the growth and reproduction of seed plants, which eventually displaced the earlier dominant forms of plant life such as ferns and mosses. This shift in dominance marked a major step in the evolution of plants and paved the way for the development of modern forests.
A grass with elongated tillers would likely regrow from __________________ if trimmed near grounf level
a. Basal buds
b. Axillary buds
c. horizontal roots
d. Intact growing points
A grass with elongated tillers would likely regrow from basal buds if trimmed near ground level.
What are basal buds?Basal buds are small growth points located at the base of a plant's stem near the soil surface. They have the potential to produce new shoots and leaves, and are an important factor in the regrowth and survival of many herbaceous plants.
When a plant is trimmed, cut back, or damaged, the basal buds can activate and produce new growth, allowing the plant to regenerate and continue to grow. This characteristic makes basal buds a valuable adaptation for many grasses and other plants that face regular disturbances, such as mowing or grazing, in their natural habitats.
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Which of the following WAS NOT an impact of the crusades?
A. Change in culture in Europe
B. End of the Roman Empire
C. Monarchs grew more powerful
D. Many Christians were killed or badly injured
Answer:
monarchs grew in power.
A student wants to use objects she finds around the house to model Mercury, Venus, and Earth. Which model best compares the relative sizes of these three planets? a. Three basketballs b. Two basketballs and one softball c. Two softballs and one basketball d. One marble, one softball, and one basketball
The answer is D, she can make use of One marble, one softball, and one basketball
What are planetary bodies?According to the geophysical definition of celestial objects, a planetary-mass object (PMO), planemo, or planetary body is any celestial object big enough to establish hydrostatic equilibrium (to be spherical under its own gravity), but not enough to support core fusion like a star.
What different kinds of celestial bodies are there?
Planets.StarsSatellites.Comets.Asteroids.Meteors and Meteorites.Galaxies.Learn more about planetary bodies here:
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