Some people develop allergies or breathing issues is one way that poor air quality can create problems for humans in the United States.
What level of air quality is safe?The level of poor air quality and the resulting health risk increase with increasing AQI values. An AQI value of 50 or less, for instance, suggests clean air, even though one of over 350 indicates polluted air.
How does the quality of the air influence you?Poor air quality can aggravate asthma and related disorders, irritate ones eyes, nose, & throat, induce shortness of breath, and have negative effects on the heart and circulatory system. Long-term exposure to contaminated air can result in more severe issues.
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HELP PLEASE Part 1: Between the
moon and Earth, which has a higher maximum surface temperature?
Part 2: Using complete sentences, explain the reason for this.
The Moon has essentially little atmosphere, thus it cannot retain heat or act as a surface insulator. The Moon's surface reaches 127°C in full sunlight, which is far over the boiling point of water.
What is the surface with the highest temperature?The record for the world's warmest air is held by Death Valley: Temperatures in the California desert's appropriately called Furnace Creek region on July 10th, 1913, soared to a scorching 56.7°C.
What is the moon's surface temperature at its highest?The lunar equator has hot days with temperatures of 250 degrees Fahrenheit 120 degrees Celsius, and cold nights with temperatures of -208 degrees Fahrenheit -130 degrees Celsius, or 140 K.
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Bob discovered that he had high blood pressure, which was the result of years of poor
eating habits. Bob's company physician gave him a healthy diet to follow that would help
to lower his blood pressure naturally and economically but not create a mineral deficiency.
Which of the following statements is irrelevant to Bob's understanding of his new, healthy
diet?
A. A daily vitamin and mineral supplement is more important than a well-balanced diet.
B. Whole-wheat breads fortified with iron and calcium are better choices than white
breads.
S
C. Low-fat dairy products, green leafy vegetables, and tofu are good sources of
calcium.
D. Lean red meat, whole-grain cereals, and beans are valuable sources of iron.
E. The restriction of sodium-rich foods is essential in reducing the risk of heart
disease.
C. Low-fat dairy products, green leafy vegetables, and tofu are good sources of calcium.
Is it possible to suffer a stroke while sleeping?Background According to reports, 13% to 44% of all cerebrovascular accidents (CVAs) occur during sleeping. Snoring, sleep apnea, obesity, and daytime drowsiness, in addition to other well-known risk factors, have been proven to dramatically increase the risk of stroke.
A quiet stroke is one that does not create any visible symptoms. The majority of strokes are triggered by a clot in a blood artery in the brain. The obstruction prevents blood and oxygen from reaching that location, resulting in the death of adjacent brain cells.
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__________ believes that the universe is 6,000 to 15,000 years old
The subject is earth science but there’s no option for that
The core concept of Young Earth Creationism (YEC), a type of creationism, is that the Earth is young.
What does creationism mean in terms of science?Creation Science and Creationism. the conviction that the universe was created as described in Genesis. Some creationists hold the Big Bang hypothesis and the theory of evolution to be myths, while they hold the theory of creation as it is recorded in Genesis to be a scientific explanation.
Do Catholics accept creationism to be true?The Catholic Church does not officially endorse either the doctrine of creation or evolution, leaving it up to the individual to choose between literal creationism or theistic evolution within limits set by the Church.
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Compare and contrast passive and active immunity, covering at least 4 functions, components, or mechanisms related to immune response. Include at least 1 way in which they are similar and 1 way in which they are different.
Active immunity develops as a result of the body's own generation of antibodies, whereas passive immunity is a result of antibodies created outside the body and then brought into the body.
Which of the following best describes the differences between active and passive immunity?Both active and passive immunity exists. When our immune system actively defends us against a pathogen, we are said to have active immunity. When we receive immunity from another person, we are able to defend ourselves against a virus. This is a key distinction between the two types of immunity.
For instance, an infant acquires passive immunity when a mother's antibodies are transferred to her through the placenta or breast milk. Getting an injection of antibodies to fend against the effects of a toxin like a snake venom can also cause it.
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3. What does the use of syn-in ATP synthase mean?
What do does the degree of symmetry in 2D:4D finger length ratios indicate? Select one: a. If a man has asymmetrical 2D.4D finger length ratios, that means he's Iikely attracted to other men: b. It is a strong indication of whether or not a man has older brothers_ c. It indicates the level of testosterone a fetus was exposed to during gestation. d. If a man has symmetrical 2D:4D finger length ratios, he's likely attracted to women:
The degree of symmetry in 2D:4D finger length ratios indicate that if a man has asymmetrical 2D:4D finger length ratios, that means he's Iikely attracted to other men.
Having a 2D:4D finger length ratio is a sexually dimorphic characteristic. Men's second digits (index fingers) are typically shorter than their fourth digits (ring fingers). It is believed that smaller, more masculine digit ratios are linked to either higher prenatal testosterone levels, increased androgen sensitivity, or both.
According to research, having a longer ring finger than index finger indicates that a person was exposed to more male hormones while they were in their mother's womb. Finger lengths vary between and between sexes and are related with development that is generally more masculine than feminine.
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bioc 406 which of the following are metabolic strategies used to treat urea cycle disorders? 1. high protein diet 2. supplement diet with arginine 3. supplement with molecules like benzoate that promote metabolic reactions that utilize ammonia.
The following metabolic strategies used to treat urea cycle disorders are:
supplement diet with argininesupplement with molecules like benzoate that promote metabolic reactions that utilize ammoniaThe amino acid arginine has the chemical formula (H2N)(HN)CN(H)(CH2)3CH(NH2)CO2H). A guanidine group is attached to a typical amino acid framework in the molecule.
At physiological pH, the amino and guanidino groups are protonated and the carboxylic acid is deprotonated (CO2), resulting in a cation. There is just one l-arginine enantiomer naturally occurring. Proteins frequently contain Arg residues.
The codons CGU, CGC, CGA, CGG, AGA, and AGG are used to encode. The creation of nitric oxide begins with the guanidine group in arginine. It
is a solid that is white and water soluble like all amino acids.
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The following metabolic approaches are utilised to treat urea cycle disorders:
arginine supplement dietUse chemicals like benzoate to boost metabolic pathways that use ammonia.The molecular formula for arginine is (H2N)(HN)CN(H)(CH2)3CH(NH2)CO2H. In the molecule, a guanidine group is linked to a normal amino acid framework.
The amino and guanidino groups are protonated at physiological pH, whereas the carboxylic acid is deprotonated (CO2), resulting in a cation. There is only one l-arginine enantiomer found naturally. Arg residues are commonly found in proteins.
To encode, the codons CGU, CGC, CGA, CGG, AGA, and AGG are utilised. The guanidine group in arginine is the starting point for the formation of nitric oxide. It is a whitish solid that, like other amino acids, is water soluble.
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mitochondria have a "bag within a bag" structure. this is necessary to:
Mitochondria are organized like "bags inside bags." In order to generate two separate zones with a concentration difference and a source of potential energy, this is necessary.
How are the mitochondria's composition and function related?The form of mitochondria, which resembles a rod, improves the surface area for diffusion and makes it faster and more effective to meet an organism's high energy requirements.
What is necessary for the synthesis of ATP in mitochondria?The mitochondria require an electron flow in order to produce ATP. These electrons come from the disintegration of food molecules. In the cytosol, sugars and lipids are degraded, and the resulting materials are then transferred to the mitochondria. The citric acid cycle involves the oxidation of acetyl CoA to CO2.
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Why do some scientific theories and hypotheses change over time?
O All of these choices are correct.
ONew scientific discoveries are made all the time.
As technology changes, scientists learn more about the world.
O Different cultural, religious, or personal biases may shape beliefs and findings.
Accepted theories may be modified or overturned as new evidence and perspective emerges. Scientists are likely to accept a new or modified theory if it explains everything the old theory did and more
What is Scientific theory ?Ideally, a scientific theory changes because new information arises that either discredits it or forces it to be modified to act as a better explanation. Some theories which seemed correct at the time are disproven by later findings with better, more accurate instruments.
As technology develops more data can be collected and new types of observations made. A hypothesis is a testable explanation of an observed event. New data that contradicts a hypothesis may lead to a new scientific explanation. The hypothesis is changed.
The power of a hypothesis test is affected by three factors.
Sample size (n). Other things being equal, the greater the sample size, the greater the power of the test.
Significance level (α). The lower the significance level, the lower the power of the test.
The "true" value of the parameter being tested.
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The site where two original DNA strands separate and active replication occurs is called a. replication folk b. replisome c. primosome d. lagging strand
This active region is known as a replication fork due to its Y-shaped structure. The DNA polymerase is part of a multienzyme combination that synthesises both new daughter strands' DNA at a replication fork.
What is and how does a replication fork operate?A replication fork comprising two single-stranded templates is created when DNA helicases unwind double-stranded DNA before polymerases do. A lone DNA double helix can be duplicated by replication processes to two DNA helices, that are then split into daughter cells during mitosis.
The replication fork is missing.At the point of replication, a replication bubble is created by opening the circular bacteria chromosome's double-stranded DNA. A replication fork, or Y-junction, which divides double-stranded DNA into two single strands, is present at each end of the bubble.
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I NEED HELP ASAP FREE BRAINLIEST IF CORRECT
(Make sure to answer the bullet point questions only)
Answer: 1. Upward, 2. 1978, 1987-2000, 2016-2021, 3. The revenues of different music formats over time. 4. Paid subscriptions will continue to increase in popularity and dominate the music market. 5. Almost all music listeners listen to music through an electronic platform.
If you had access to these scientists, what questions would you ask them in order to clarify evidence of the factors that have caused the rise in global temperatures over the past century? Write two questions using two different perspectives: one from a person who might be in agreement with the scientists and one who is skeptical of this court ruling and environmental activists around the world.
If you had access to these scientists, what questions would you ask them in order to clarify evidence of the factors that have caused the rise in global temperatures over the past century therefore the two questions which will be asked using two different perspectives include:
Are you sure this isn't part of a natural cycle?How is climate change affecting people? What is Climate change?This refers to the long-term shifts in temperatures and weather patterns caused by different factors such as global warming via emission of greenhouse gases.
The questions which would be asked from a person who might be in agreement with the scientists is how it affects the people for a clearer explanation on its effect.
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PLEASE HELP!!!
A person without the allele for sickle cell anemia has children with a person who is a carrier for sickle cell anemia but doesn’t have the disease. What percentage of their children will have sickle cell anemia? What percentage of their children will be carriers for sickle cell anemia? Show your work with a Punnett square. You can copy/paste the blank table below or create a table in the submission box to complete the Punnett square.
Answer:
Percentage kid will have sickle cell anemia: 0%
Percentage kid will be carriers for sickle cell anemia: 50%
Explanation:
Parents: SS and Ss
Kid possibilities: SS, SS, Ss, and Ss for the 4 boxes of the Punnet Square
For each of the following genes, classify whether it regularly exists in a hemizygous state.
A person who is hemizygous has one member of a chromosomal pair or chromosome segment instead of the typical two. When a guy has just one X chromosome, hemizygosity is frequently used to characterize X-linked genes.
In somatic cell genetics, where cancer cell lines are frequently hemizygous for certain alleles or chromosomal areas, this word is occasionally employed. On the X chromosome of a typical male human is a color-blindness gene that is consistently hemizygous. For instance, a transgenic gene was only introduced into one mouse chromosome. If there is a color blindness gene on the X chromosome in a typical female person, it is not usually hemizygous. Suppose a person with Down-syndrome carries a gene on chromosome 21.
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Cross #1: A female BbEE x a male bbEE. The cross produced 10 puppies. Six were Chocolate in color, and four were black. What were the genotypes of the puppies?
The genotypes of the puppies would be BbEE and bbEE.
Dihybrid crossingThe cross involves two traits and the genotypes of the parents involved are BbEE and bbEE.
Crossing the two parents:
BbEE x bbEE
Genotypes of the offspring:
8/16 BbEE8/16 bbEEIn other words, only two genotypes are possible from the cross. These are BbEE and bbEE. Thus, the genotypes of the puppies are limited to the two genotypes from the cross.
The Punnet's square result of the cross can be found in the attached imaged
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What is currently being done(regulations, laws, protest,fundraising,ets.) to protect blue whales from going extinct? I need helppppp
The International Whaling Commission has proposed a global ban on commercial whaling, as well as a zero catch limit for blue whales.
What do you mean by Whaling?
Whaling is the practice of hunting and killing whales for their meat, oil, and other products. It has a long history dating back to prehistoric times, and continues to be practiced in some parts of the world today. The main species of whales hunted are the sperm whale, the humpback whale, the fin whale, and the minke whale.
Additionally, the International Maritime Organization has proposed regulations that would reduce ship strikes and noise pollution in areas where blue whales live. In the United States, the Endangered Species Act protects blue whales as an endangered species, which prohibits hunting and other activities that could potentially harm them. Research and conservation efforts are also being conducted by organizations such as the National Marine Fisheries Service and the World Wildlife Fund.
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• What are the major structures of the bone and their respective subcategories? Define each term into its common word parts. Write these word parts in sequence; use a slash when necessary to indicate a combining vowel. ○ Bursectomy ○ Osteochondroma ○ Osteomalacia ○ Periostitis ○ Tendonitis ○ Spondylosis
The major structures of the bone and their respective subcategories definitions are:
Bursectomy: "Burse" refers to a bursa, which is a fluid-filled sac that acts as a cushion between tendons, muscles, and bones. "Ectomy" means removal or excision. A bursectomy is the surgical removal of a bursa.
Osteochondroma: "Osteo" refers to bone, "chondro" refers to cartilage, and "oma" means tumor. An osteochondroma is a benign tumor that is made up of both bone and cartilage.
Osteomalacia: "Osteo" refers to bone and "malacia" means softening. Osteomalacia is a condition characterized by a softening of the bones, usually due to a deficiency of vitamin D.
Periostitis: "Peri" means around, "osteo" refers to bone and "itis" means inflammation. Periostitis is an inflammation of the periosteum, which is the membrane that surrounds the bone.
Tendonitis: "Tendo" refers to tendons and "itis" means inflammation. Tendonitis is an inflammation of a tendon, which is the fibrous tissue that connects muscle to bone.
Spondylosis: "Spondylo" means vertebrae, "osis" means condition or disease. Spondylosis is a condition characterized by degeneration of the vertebrae, often accompanied by formation of bone spurs.
What are bone?Bones are the hard, rigid structures that make up the skeletal system of the human body. They provide support, protection, and movement to the body. Bones are made up of several types of tissue, including:
Compact bone: This is the dense, hard outer layer of bone that makes up the majority of the bone's surface. It is composed mostly of calcium, phosphorus, and collagen.
Cancellous bone: This is the spongy, inner layer of bone that is found at the ends of long bones and in the vertebrae. It is composed mostly of calcium and phosphorus.
Note that Bone marrow: This is the soft, fatty tissue that is found in the center of most bones. It is responsible for producing blood cells.
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compared to bacteria, eukaryotic transcription is more complex because _____.
Compared to bacteria, eukaryotic transcription is more complex because eukaryotic cells have a distinct nucleus and multiple types of subcellular organelles, whereas bacteria do not.
In eukaryotic cells, the process of transcription occurs in the nucleus, whereas in bacteria it occurs in the cytoplasm. Additionally, eukaryotic cells have a far more complex system of gene regulation, involving multiple levels of control such as chromatin remodeling and post-transcriptional modifications, whereas bacteria typically have simpler mechanisms of regulation.
Furthermore, eukaryotic cells have multiple types of RNA polymerases, each responsible for transcribing different types of genes, and also eukaryotic cells have a more complex process of RNA processing and maturation, including alternative splicing, cap addition, and polyadenylation, which are not present in bacteria.
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Which of the following processes will most likely occur when you transfer a bacterial culture from 37 degree C to 10 degree C? A.the bacteria will start synthesizing cholesterolB.the bacteria will remove cholesterol from their membranesC.the bacteria will reduce the number of unsaturated bonds in the fatty acid tails of their phospholipidsD.the bacteria will increase the synthesis of phospholipids with very long fatty acid tails and insert these into their membranesE.the bacteria will increase the synthesis of phospholipids with unsaturated fatty acid tails and insert these into their membranes
The answer is letter E, the bacteria will increase the synthesis of phospholipids with unsaturated fatty acid tails and insert these into their membranes.
Bacteria are capable of surviving different types of environments with varying temperatures. When it is exposed to a low temperature, as in the situation above (from 37 °C to 10 °C), it regulates its transition phase. Th cytoplasmic membrane of organisms plays a vital role when it comes to physiological environments.
When it comes to bacteria, their membrane is primarily composed of "phospholipids." It is said that the phospholipids with unsaturated fatty acids have a transition that is lower to that of phospholipids with saturated fatty acids when it comes to temperature.
Thus, the bacteria will have to increase the synthesis of phospholipids with unsaturated fatty acid tails and insert these into their membranes. This will help increase the membrane's fluidity, thus allowing it to survive in low temperatures.
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Which of the following statements is not true about fixed action patterns (FAPs)?
a. All the members of a species perform the exact same sequence of behaviors.
b. The behavior pattern is stereotyped.
c. Many behaviors thought to be fixed action patterns have been shown to develop after practice.
d. The fixed action pattern was considered to be initiated by a sign stimulus.
e. FAPs are strictly the result of the expression of particular genes.
The following statements is not true about fixed action patterns (FAPs) :
All the members of a species perform the exact same sequence of behaviors.FAPs are strictly the result of the expression of particular genes.Fixed action patterns (FAPs) are based on six genes: stereotype, complexity, initiation, trigger, experience-independence, complexity, and species-specific. As a result of external stimuli, certain behavioral patterns are displayed. Gray swans lay eggs in the nest and when the eggs leave the nest. Nerves send impulses, and the goose uses its beak to carry the eggs to the nest. Each species behaves differently.
Fixed behavioral patterns is a term in behavioral research. It is defined as an action performed by a seed. This term was first identified by Konrad Lorenz. These are found mainly in fish and birds.
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In humans, normal skin dominates albino skin; a cross between two albino people results in a) all albino. b) two normal and two albino. c) all normal: d) three albino and one normal:
Answer:
all albino
Explanation:
if normal dominates albino their genotypes would have to be aa since uppercase A is normal
so aa and aa would result in all kids being albino
hurrrrrrrrrryyyyyyyyyy!!!! 100 pointsssssssssss
Write an argumentative report (4-5 paragraphs long) that describes the impact humans have on the environment. Assume your audience is the general public, and your goal is to convince them to make positive changes. Be sure to also research and include details of what actions humans can take to affect positive change for the environment. Support your argument and suggestions for change with evidence from the Internet sources you have read and viewed. You do not need to use all the sources, only the ones that most effectively and credibly support your position and your calls for change.
Answer:
Explanation:
Humans have had a significant impact on the environment in recent times, and it is essential that we take immediate action to make positive changes to protect our planet. The burning of fossil fuels, deforestation, and the overuse of natural resources have led to increased carbon emissions, air and water pollution, and the destruction of habitats for wildlife. Climate change, caused by human activities, is causing sea levels to rise, extreme weather events to occur more frequently, and is affecting the biodiversity of our planet.
One of the most significant actions humans can take to affect positive change for the environment is to reduce our carbon footprint. This can be achieved by using renewable energy sources, such as solar and wind power, instead of fossil fuels. Additionally, individuals can reduce their carbon footprint by using public transportation, carpooling, or biking instead of driving, and by using energy-efficient appliances and light bulbs. According to the United Nations Framework Convention on Climate Change, if we act now, we can still limit the global temperature increase to 1.5°C, thus avoiding the worst consequences of climate change.
Another way humans can make a positive impact on the environment is by reducing our consumption of meat and dairy. Agriculture is one of the leading causes of deforestation and water pollution. According to the World Wildlife Fund, if we all reduce our meat consumption by 50%, we could prevent the extinction of several species, increase food security, and reduce greenhouse gas emissions.
Lastly, humans can make a positive impact by supporting companies that prioritize the environment and sustainability. Consumers have the power to vote with their dollars and support environmentally friendly products and companies. They can also advocate for more environmentally friendly policies and regulations, and support conservation efforts such as reforestation and habitat restoration.
In conclusion, humans have had a significant impact on the environment, and it is essential that we take immediate action to make positive changes to protect our planet. By reducing our carbon footprint, reducing our consumption of meat and dairy, and supporting environmentally friendly companies and policies, we can make a positive impact on the environment. It's time for us to take responsibility for our actions and make the necessary changes to protect our planet for future generations.
The attempt to disprove a hypothesis is accomplished by which of the following tasks?
• conducting experiments
• making initial observations
• proposing a theory
Conducting experiments is one way to try and refute a hypothesis.
Which of the following describes a characteristic of scientific theories?Falsifiability and testability are the two key characteristics of a scientific hypothesis. They are embodied in a "If...then" statement that summarizes the notion and in the capability to be confirmed or disproved through observation and experimentation.
The process of testing theoriesControlled experiments are used by scientists to test their hypotheses wherever possible. One (or a few) parameters are changed at a time while all other variables are maintained constant in a controlled experiment, which is a scientific test carried out under controlled circumstances.
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Which of the following is a function of the nerve indicated by the red arrow? O Speed up heart rate O Increase strength of heart contraction O Slow down heart rate O Stimulate opening of the heart valves
the following is a function of the nerve indicated by the red arrow The nerve indicated by the red arrow is the vagus nerve.
The vagus nerve is the longest and most complex of the cranial nerves. It arises from the brainstem and runs through the neck and thorax, innervating the viscera and various muscles. The vagus nerve plays a role in controlling the digestive system, the larynx, and the heart rate and blood pressure. It also plays a role in regulating the immune system and in modulating the body's response to stress. The nerve is also involved in the regulation of the parasympathetic nervous system, which helps to control the body's "rest and digest" functions.
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When can an ecosystem sometimes repair itself
Answer:
Please read below:
Explanation:
An ecosystem can sometimes repair itself when it is not severely damaged and the environment is not drastically altered.
For example, if a natural disaster such as a wildfire has occurred, the ecosystem may be able to repair itself over time as long as the environment remains relatively stable.
This is because the environment can provide the necessary resources for the species to rebound and for new species to move into the area.
match the phenotypes on the labels at left to the genotypes listed below. labels can be used once, more than once, or not at all. AaBbcc: albinoAAbbCc: agouti brownAaBBCC: agouti blackaaBbCc: solid color, blackAabbcc: albinoAABBcc: albino
A triploid plant is one with the genotype AaBbCc. A unique formula 2n is used to compute the total number of gametes produced by a specific genotype, where n= the number of heterogeneous alleles identified in the genotype.
A person's genotype is their unique DNA sequence. This phrase is used to describe to the two alleles that a person inherited for a certain gene. A patient's clinical presentation is the detectable expression of this genotype.
Earwax type, height, blood type, eye color, freckles, and hair color are examples of phenotypes in humans. And phenotypes are more than simply physical characteristics.
AaBbcc: albino
AAbbCc: agouti brown
AaBBCC: agouti black
aaBbCc: solid color, black
Aabbcc: albino
AABBcc: albino
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in your body, when energy is released from the breakdown of a molecule such as glucose,
By using controlled stepwise oxidation to break down glucose and other dietary components, chemical energy in the form of ATP and NADH is produced.
By creating the flimsy high-energy bonds that join phosphate groups to ADP molecules, some of the energy may be captured. Through a sequence of processes known as glycolysis, glucose is divided into two pyruvate molecules, each of which has three carbons. In the cytoplasm of the cell, glucose is converted to pyruvate. Pyruvate is converted into carbon dioxide and water upon entrance into the mitochondria. ATP receives its chemical potential energy. The majority of the carbohydrates in our diets are broken down by the body and turned into a sugar called glucose.
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what happens to the carbons of pyruvate that do not enter the krebs cycle?
A. they are converted to carbohydrates
B. they are converted to CO2
C. they are converted to glucose
D. they are converted to ATP
E. they are converted to acetyl CoA
The carbons of pyruvate that do not enter the krebs cycle so they are converted to CO2 . correct option (B).
Pyruvates are often acknowledged as one of the most critical molecules found at the junction of numerous metabolic events and pathways. Pyruvate is a 2-oxo monocarboxylic acid anion whose conjugate base is pyruvic acid, which results from carboxylic group deprotonation.
Pyruvate is widely regarded as one of the last products of glycolysis, with two molecules created by the relative breakdown of a single glucose molecule. Pyruvate and water molecules, as well as high-energy molecules like ATP and NADH, are the principal end products of glycolysis.
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what is definition of alleles?
Answer: one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Explanation: hope it helped
Answer:
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Explanation:
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The Urey-Miller experiment produced _________ in a laboratory jar.
a. life
b. RNA and DNA
c. amino acids
d. proteins
The Urey-Miller experiment produced c. amino acids in a laboratory jar.
What is Urey-Miller Experiment ?
Harold C. Urey and Stanley L. Muller conducted an experiment to explain the beginning of life on Earth. They believed that the environment of the early earth may have produced amino acids from inorganic materials. Methane, water, hydrogen, and ammonia—which the two biologists believed to have been present in the early earth's atmosphere—were used by them.
Because amino acids, the basis of life, were created throughout the simulation, the experiment was successful. The discovery was so important that it gave birth to the discipline of prebiotic chemistry.
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