Answers
Answer:
C is the correct answer.
Explanation:
i attached a photo of the structure of two different nucleic acids. the structure shown on your paper matches up with the DNA model, therefore c. nucleic acid is the correct answer.
Related Questions
I don’t know these questions
Answers
Answer:
1. Chloroplast
2. 6CO2 + 6H2O → C6H12O6 + 6O2
3. carbon dioxide (CO2) and water (H2O).
4. glucose (C6H12O6) and oxygen gas (O2).
Explanation:
Photosynthesis is a metabolic process in plant undergone to produce their food in the presence of sunlight. In this process of photosynthesis, plants combine carbon dioxide and water to produce glucose and oxygen gas (waste product).
1. Photosynthesis occurs in a special organelle unique to plants and some organisms called CHLOROPLAST.
2. The chemical equation of photosynthetic reaction is as follows:
6CO2 + 6H2O → C6H12O6 + 6O2
3. Based on the equation above, the raw materials i.e starting materials needed for photosynthesis are carbon dioxide (CO2) and water (H2O).
4. Also, based on the above chemical reaction, the two products of the photosynthetic reaction are glucose (C6H12O6) and oxygen gas (O2).
How long have people been debating the idea of evolution?
Answers
For each of the following structures, first indicate its function in the fetus; then, note its fate (what happens to it or what it is converted to after birth).
a. Umbilical artery
b. Umbilical vein
c. Ductus venosus
d. Ductus arterious
e. Foramen ovale
Answers
Answer:
1. Functions:
a. Umbilical artery >> carries deoxygenated blood from the fetus to the placenta
b. Umbilical vein >> transports oxygenated blood from the placenta to the fetus
c. Ductus venosus >> allows oxygenated blood from the placenta to bypass the liver
d. Ductus arterious >> allows most of the blood from the right ventricle to bypass the fetus's non-functioning lungs
e. Foramen ovale >> oxygenated blood from the umbilical vein to bypass the pulmonary circulation
2. After the bird:
1. Umbilical artery >> medial umbilical ligament
2. Umbilical vein >> round ligament of the liver
3. Ductus venosus >> ligamentum venosum
4. Ductus arteriosus >> ligamentum arteriosum
5. Foramen ovale >> fossa ovalis
Explanation:
The umbilical artery is a paired artery localized in the abdominal and pelvic regions, which carries deoxygenated blood from the fetus to the placenta through the umbilical cord. The medial umbilical ligament is the obliterated part of the umbilical artery that arises from the internal iliac arteries. In utero, the umbilical arteries carry waste products back to the placenta, whereas the umbilical vein carries oxygenated blood from the placenta to the fetus. The round ligament of the liver (also known as ligamentum teres hepatis) is a remnant of the umbilical vein that exists in the embryonic stage, it connects the left lobe of the liver to the umbilicus. The ductus venosus is a slender shunt that allows oxygenated blood from the placenta to bypass the liver, it connects the intra-hepatic portion of the umbilical vein to the inferior vena cava. The ligamentum venosum is an extrahepatic, slender, and fibrous remnant of the fetal ductus venosus that travels between the left portal vein and the inferior vena cava. The ductus arteriosus is a fetal artery that connects the aorta to the pulmonary artery. The ligamentum arteriosum is a nonfunctional vestige of the ductus arteriosus, it is attached to the superior surface of the pulmonary trunk. The foramen ovale is an oval-shaped, small, opening in the wall (septum) between the two upper chambers of the heart. The fossa ovalis is a vestige stricture of the foramen ovale of the embryonic heart, which forms a depression in the right atrium of the heart.
Use your understanding of natural selection to explain how the mutations that occurred on Mc1r lead to the evolution of the rock pocket mouse?
Answers
Explanation:
The evolution of the rock pocket mouse is a great example of how natural selection can lead to the adaptation of a species to its environment. The mutations that occurred on the Mc1r gene allowed some individuals of the population to have a different fur coloration than the rest of the population. This new fur coloration provided a selective advantage to the mice living in the darker volcanic rock environment.
The darker fur of the rock pocket mouse provided camouflage against predators, allowing them to blend in with the dark rocks and avoid being seen. This made them less likely to be preyed upon by predators such as owls and snakes, which hunt by sight. As a result, the mice with the darker fur were more likely to survive and pass on their genes to the next generation.
Over time, as the population of the rock pocket mouse continued to be exposed to predation, the proportion of individuals with the darker fur coloration increased. This is because the individuals with the darker fur coloration were more likely to survive and reproduce, passing on their advantageous traits to their offspring. Eventually, the population became dominated by individuals with the darker fur coloration, and the rock pocket mouse became a distinct species.
This process, in which mutations that provide a selective advantage become more common in a population over time, is known as natural selection. In the case of the rock pocket mouse, the mutations that occurred on the Mc1r gene allowed the mice to adapt to their environment and avoid predation, ultimately leading to the evolution of a new species.
Why do light-fur mice survive LESS often on dark rocks, compared to dark-fur mice?
Answers
Answer:
for a creature with a lighter fur color it is next to impossible to blend into darker colored environments compared to darker fur colored creatures
The light fur mice survive less on the dark rocks compared to the dark fur mice. The reason is the light fur mice can be easily visible by the Predator and eaten by them.
What is adaptation?An adaptation is a process in which an organism tries to adapt with the environment in order to protect itself from the predator. There are different types of adaptation seen in the animal kingdom, such as mimicry.
An example is mice fur coloration on the dark rocks. Dark rocks have dark coloration. When dark-furred mice live on this type of rock, their colour will mix with the dark colour of the rock. As a result, they can't be clearly visible to the predator's eye. Predators that are present at a distance, such as birds can't distinguish between the rock and the dark mouse's fur. This increases their chance of survival. When a light fur-colored mouse lives on the dark Rock, it can easily be differentiated by the Predator and eaten by them.
Hence, light colour fur mice survives less than the dark fur mice on the dark Rock as they can easily be seen by predators.
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how are mutations passed to offspring?
Answers
Answer:
The only mutations that matter to large-scale evolution are those that can be passed on to offspring . These occur in reproductive cells like eggs and sperm and are called germ line mutations . A single germ line mutation can have a range of effects : No change occurs in phenotype.
Explanation:
Answer:
they are passed down to an offspring from a parent carrying a mutation through the germ line, meaning through an egg or sperm cell carrying the mutation
Explanation:
A person with XXX aneuploidy would have two Barr Bodies. True or False
Answers
Answer: False
Explanation: A person with XXX aneuploidy would have only one Barr Body. The presence of a Barr Body is a result of X-chromosome inactivation in females, which is a process that randomly silences one of the two X chromosomes in each cell to prevent overexpression of X-linked genes. In individuals with three X chromosomes (XXX), two X chromosomes are inactivated, while the third remains active. Therefore, they would have one Barr Body in each cell.
You have been researching the biodiversity of different species of lizards in the Florida Everglades. You select a one square acre plot of land and begin tagging and counting the different reptiles found in that area over 6 months. After 6 months of research, you collected the following data: Species * Count Green Anole 16 Brown Anole 72 American Alligator 3 Burmese python 2 Corn Snake 9 Eastern Glass Lizard 8 Use the blanks below to answer the following questions: 1. What is the biodiversity index of the one acre lot observed? 2. If you collected the same information for a second square acre 10 miles away and determined that acre to have a biodiversity index of 0.37, would you consider the first area to be biologically diverse and why or why not? 3. What do you think is suppressing biodiversity in the first acre counted? AJ 4
Answers
The biodiversity index of the one-acre lot observed is 0.054. Based on the given information, first area is not biologically diverse as its biodiversity is lower than the second lot. Reasons suppressing biodiversity in the first acre counted could be fewer food sources, overexploitation of the natural environment, and habitat loss.
Diversity refers to the measure of the number of different species in a biotic community. A biodiversity index refers to a scale of the diversity of species at the study site. It is commonly used for estimating the complexity, stability, and thus general health of an ecosystem.
The biodiversity index is determined by dividing the number of species in the area by number of individuals in the area. In the given case, the number of species in the area is 6 and the total population is 110. Hence, the biodiversity index is 6/110 = 0.054. It indicates that there is low diversity in the area.
If you collected the same information for a second square acre 10 miles away and determined that acre to have a biodiversity index of 0.37, the first area is not considered biologically diverse as the biodiversity index is higher in the second area than the first area. A high index value indicates a stable site with many different niches and low competition while a low index value indicates a site with few potential niches where only a few species dominate.
The possible reason which is suppressing biodiversity in the first acre counted could be fewer food sources, overexploitation of the natural environment, and habitat loss.
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Is crick and Watson a type of genetic test
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No, "Crick and Watson" is not a type of genetic test. Crick and Watson refer to James D. Watson and Francis Crick, who were scientists involved in the discovery of the structure of DNA. They proposed the double-helix structure of DNA in 1953, which provided the foundation for understanding genetic information and its role in heredity.
Genetic tests, on the other hand, are laboratory tests that analyze an individual's DNA or genes to provide information about their genetic makeup, potential genetic disorders, or predispositions to certain conditions.
These tests can be used for various purposes, such as diagnosing genetic disorders, predicting the risk of developing certain diseases, determining carrier status for genetic conditions, or providing ancestry and genealogical information.
While Crick and Watson made significant contributions to the field of genetics, they are not directly associated with genetic testing. Genetic tests are based on scientific advancements and technologies developed after their groundbreaking discovery of the DNA structure.
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ses/17549/discussion_topics/235908
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NCCT
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Log In to Canvas Cengage eTextbook
Receptionist and the Medical Office Environment Ethics:
Chapter 5 discusses the emerging role of the medical receptionist, which includes knowing and understanding a wide
variety of laws and regulations, answering an almost constantly-ringing telephone, reviewing insurance cards, determining
insurance types or managed care plans, entering demographic data into the computer, posting a variety of transactions,
scheduling appointments, and professionalism. In other words, working as a receptionist in a medical office should be a
professionally trained medical assistant who is flexible and prepared for a variety of duties.
Scenario:
You are the patient and enter a medical office. You notice a faint smell of urine and approach the reception desk where the
receptionist is talking on the telephone. She never looks up and you wait at the desk for a few minutes, but finally give up
and sit down. She keeps talking while chewing gum and you notice her blouse is low-cut.
Instructions: For your initial post, answer the following 2 questions:
a. Discuss three (3) possible ways you could respond to her without seeming rude or embarrassing her (in your own
words).
b. How should this behavior be addressed? Who should address this employee?
Cl
Answers
a. Discuss three (3) possible ways you could respond to her without seeming rude or embarrassing her (in your own words):
Approach the situation with empathy: Begin by acknowledging the receptionist's presence and politely express your need for assistance. You can say something like, "Excuse me, I'm sorry to interrupt. I have an appointment and was wondering if you could help me with the check-in process?"Express concern and ask for clarification: In a non-confrontational manner, mention the faint smell of urine and inquire if there is a maintenance issue or if they are aware of the situation. You can say, "I noticed a faint smell and wanted to make sure everything is alright. Is there perhaps a maintenance issue that needs attention?"Provide feedback in a constructive manner: Share your observations about the receptionist's behavior without accusing or being judgmental. Use "I" statements to express how their actions made you feel. For example, you could say, "I noticed you were on the phone and it took me a while to get assistance.b. How should this behavior be addressed? Who should address this employee?
The behavior of the receptionist should be addressed to ensure a professional and welcoming medical office environment. Ideally, the responsibility lies with the supervisor or manager of the medical office.
The supervisor or manager should approach the situation with professionalism and sensitivity, providing clear feedback on the observed behavior and its impact on patients.
The discussion should also provide an opportunity for the receptionist to share any challenges they may be facing or reasons for their behavior, allowing for open communication and the possibility of addressing any underlying issues.
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Which is a biotic factor?
Answers
Answer:
a living organism that shapes its environment
Explanation:
hope this helps
What’s the difference between frameshift mutations and point mutations
Answers
Answer:
Mispairing of DNA molecule causes the Frameshift mutations, changes in single base pair nucleotide sequence usually insertion or deletion results in these mutations. Point mutations occur when a single nucleotide is replaced with another nucleotide base.
The whole information coded in the amino acid changes due to a Mutation occurs in the sequence of DNA molecule in a frameshift mutation. The mutation occurs in the sequence of a DNA molecule.
Gene mutation Chromosomal mutation
It is a change in nucleotide sequence, in a particular gene. It is a change in several genes, in the chromosome.
Gene mutation is an only slight structural
Explanation:
hope this helps
The two forms of gene mutations that may result from mistakes in DNA replication and mutagens are point mutations and frameshift mutations. Gene mutations are minor changes that take place in a gene's nucleotide sequence.
The primary distinction between a point mutation and a frameshift mutation is that a point mutation only affects one nucleotide in a gene, whereas a frameshift mutation affects one or more nucleotides and changes the open reading frame of a specific gene. Point mutations are primarily nucleotide substitutions that result in silent, missense, or nonsense mutations. Nucleotide insertion or deletion causes frameshift mutations.
A single nucleotide in DNA may change in a point mutation. The severity of this mutation is often lower than that of a chromosomal change.
A frameshift mutation occurs when one or more nucleotides are deleted or added, changing the base sequence's reading frame.
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ATP can be produced via two cellular respiration pathways. one that occurs in the presence of oxygen and one that occurs in its absence. Name and explain how these two mechanisms differ.
Answers
Aerobic and anaerobic respiration are the two different types of cellular respiration processes that are used to produce ATP.
ATP (adenosine triphosphate) is a molecule used by cells for energy storage and transfer. Two types of cellular respiration pathways are present for ATP production: aerobic respiration and anaerobic respiration. The primary difference between these two is the presence of oxygen.ATP production during aerobic respiration occurs in the presence of oxygen. This process occurs in three stages: glycolysis, the Krebs cycle, and oxidative phosphorylation. In the first stage, glucose is broken down into pyruvate, which is then moved to the mitochondria in the second stage, the Krebs cycle, where it is further processed. The last stage is oxidative phosphorylation, in which the electron transport chain and chemiosmosis use the energy generated to create ATP.Anaerobic respiration occurs in the absence of oxygen, and it is a less efficient method of ATP production. Anaerobic respiration begins with glycolysis, the same as aerobic respiration. Instead of moving to the Krebs cycle, pyruvate is transformed into lactate or ethanol. These pathways are not as effective at producing ATP, but they can supply ATP during periods of low oxygen. In summary, the main difference between these two pathways is the presence or absence of oxygen during the process.For more questions on adenosine triphosphate
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REALLY NEED HELP
Winslow Homer and the Drama of Thermodynamics.” American Art 15, no. 1 (2001): 11–33.
QUESTIONS: 1. What is the author's thesis?
2. What is the context (culture, historical, and social background) of the work of art?
3. What is the content (subject) of the work of art?
Answers
The author's belief is that Winslow Homer's paintings depict the exciting tension between the standard of thermodynamics and the human desire for control and stability.
What is the effect of the setting?Homer's use of nautical and outdoor settings, as well as welcome depictions of labor and industry, represent the conflict between everything in creation's energy and the human struggle to harness and hold it.
Winslow Homer's work was created all along the late 19th century, a time of excellent technological and modern progress in America. The nation was extending westward, and skill was a growing interest in the natural world and the allure of power.
Homer's paintings indicate this cultural circumstance, as well as welcome personal experiences as a journalist covering war during the Civil War.
Homer's paintings frequently depict nautical scenes, in the way that storms, shipwrecks, and fishing expeditions. He also commonly portrays labor and manufacturing, such as lumberers, miners, and ironworkers. The content of his paintings stresses the struggle between humans and character, as well as the desire for control and expertise over the environment.
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characteristics of contaminated water
Answers
Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.
Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.
Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.
Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.
Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.
Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.
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A species of bird on the mainland can have yellow (bb), blue (BB), or green (Bb) plumage. A few yellow birds land on a ship and are carried past an island, which they land on and settle. The resulting population of birds would have an allele frequency of:
Answers
Answer:
The resulting population of birds would have an allele frequency of "b"
Explanation:
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Which landform is NOT associated with volcanic eruptions?
A. caldera
C. lava flow
B. fault
D. mid-ocean ridge
Answers
Answer:
The answer is Fault
Explanation:
Hope this helps:)....if not sorry for wasting your time and may God bless you :)
Explain the different stages of syphilis. (Terminology/topics to include: causative organism (morphology, gram-stain reaction), mode of transmission, chancre, gumma, symptoms, likelihood of infection, treatment options at different stages, damage that can occur during different stages, prevention methods).
Answers
Answer:
Syphilis is a sexually transmitted disease
Explanation:
Syphilis is a sexually transmitted infection caused by Treponema pallidum, a spirochaete gram-negative bacterium with various subspecies. This disease is transmitted through direct contact (person to person) by different types of sexual acts. A chancre is an infectious genital lesion that is considered to be the first stage (and symptom) of syphilis. The incubation period of syphilis is 14-21 days. Syphilis can be divided into four stages: primary, secondary, latent, and tertiary. Primary syphilis produces chancres on the genitals, mouth, rectum, etc. Secondary syphilis causes rashes that occur from 2-8 weeks after the chancres. The third (latent) stage is a latent/hidden phase without noticeable symptoms. Finally, the tertiary (late) stage causes large sores within the body that affects the heart, nervous system, etc. The best manner to prevent syphilis is by practicing safe sex (e.g., by using condoms). It has been suggested that syphilis has an estimated transmission rate of 0.5–1.4% per sexual act. Syphilis doesn't have an effective treatment, but this disease can be cured in its early stages with one dose of benzathine penicillin G (administered intramuscularly).
where did the materials that formed earth come from
Answers
How would you refine your procedures to increase the precision and accuracy of your data?
Answers
Answer:
Explanation:
Have a good experimental layout or designs will help avoid biases and increase the accuracy of Data to be collected. Hence good experimental layout is very vital in minimizing error
Formulation of problem statement problem statement to be formulated must address the problem to be solved to avoid bias in data generated and results.
Materials and equipment for data collection should be readily available to avoid collection of wrong or inaccurate data.
Expertise should be source to generate data because knowledge about the subject is vital.
(60 Points!) A. Which animal do you think there will be less of and why?
B. An owl eats the mouse and the mouse eats the bark beetle. If the bark beetle has 100 units of energy, how many units of energy will the owl receive?
C. Pick a tertiary consumer in this web and explain why it is a tertiary consumer. If the tree has 1000 units of energy, how many will this tertiary consumer receive?
D. If the lion eats the jackal, why is the arrow pointing to the lion?
Answers
A. The animal that will be the least in number is the lion because it receives the least amount of energy.
B. The units of energy that the owl will receive are 1 unit of energy.
C. A wild cat is a tertiary consumer because it obtains its energy by eating primary consumers and secondary consumers.
D. The arrow is pointing from the Jackal to the Lion because the Lion can also eat the Jackal.
What is the amount of energy that is received by each successively higher energy level?The amount of energy that is received by each successively higher trophic level or energy level is 10% of the energy received by the lower energy level.
The energy received by the owl is 10% * 10% * 100 units = 1 unit of energy.
Tertiary consumers feed on secondary and primary consumers.
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The_ theory explains how our universe became so structured and uniform.
Answers
Answer:
The cosmological principle makes assumptions that provide scientific guidelines to enable its study. Mr. Biggins believes that the universe has been and always will look and be structured the same throughout all time.
Explanation:
The cosmological principle makes assumptions that provide scientific guidelines to enable its study. Mr. Biggins believes that the universe has been and always will look and be structured the same throughout all time.
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What do you think would be the hardest part of a career in forestry? How could you overcome this challenge? Explain your answers.
Answers
Answer:
the math. pay money.
Explanation:
drop the mic.
inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example
Answers
Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.
Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.For more such questions on Pedagogy:
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Which base does Cytosine pair with?
A. Adenine
B. Guanine
C. Uracil
D. Thymine
Answers
Cytosine, a nitrogenous base found in DNA and RNA, pairs with guanine. The correct answer is option B.
This pairing is based on the complementary base pairing rule in which cytosine forms three hydrogen bonds with guanine. The other base pairs in DNA are adenine with thymine, and in RNA, adenine pairs with uracil. The complementary base pairing is crucial for DNA replication and transcription processes. Cytosine and guanine, along with adenine and thymine/uracil, form the base pairs that make up the rungs of the DNA double helix structure.Understanding base pairing is fundamental to understanding the structure and function of nucleic acids. Therefore, the correct answer is option B.For more questions on DNA
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Cytosine pairs with Guanine.
Explanation:The base Cytosine pairs with the base Guanine in DNA. This base pairing is a key component of the double-stranded DNA structure.
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You and your friends are planning a hiking / camping trip to Denali National Park,
Alaska. Below is a topographic map that shows the mountain range in the park. The
wind usually blows in the direction the arrows are pointing. If you want to stay as dry
as possible (no precipitation), which site would be the better choice to set up camp?
Answers
Answer: Site B
Explanation: I took the test。
the theory that mitochondria and plastids originated from prokaryotic cells engulfed by a host cell is
Answers
The theory that mitochondria and plastids originated from prokaryotic cells engulfed by a host cell is known as: endosymbiotic theory.
Prokaryotic cells the primitive type of cells that do not have a well-defined nucleus. Instead they have a nucleus like structure called nucleoid. The genetic material lies openly as an aggregate on the cytoplasm and is also devoid of any cell organelles.
Mitochondria is the double membranous cell organelle of eukaryotes. The inner membrane is folded into various finger-like projections called cristae that increase the surface area of the organelle. The function of mitochondria is to synthesize ATP for the body requirements.
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In E. coli bacteria, the lac operon contains genes that code for enzymes that break down lactose. Which statement describes when the genes in the lac operon are expressed?
Answers
The genes in the lac operon are expressed when lactose is present and the repressor protein is unable to bind to the operator region.
In E. coli bacteria, the lac operon contains genes that code for enzymes involved in lactose metabolism. The lac operon is a regulatory system that controls the expression of these genes. The expression of the genes in the lac operon is tightly regulated and depends on the presence or absence of lactose and glucose in the environment.When lactose is present, it binds to the repressor protein (lac repressor), causing a conformational change in the repressor. This change prevents the repressor from binding to the operator region of the operon. As a result, RNA polymerase can bind to the promoter region and transcribe the genes, leading to the production of the enzymes that break down lactose.In the absence of lactose, the repressor protein binds to the operator region and blocks RNA polymerase from initiating transcription. This prevents the expression of the genes in the lac operon.For more questions on protein
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Where are the A, B and RH antigens located
Answers
Answer: The A, B, and Rh antigens are located on the surface of red blood cells.
Explanation:
explain how diseases affect biodiversity of a region
Answers
Answer:
It makes a region less biodiverse.
Explanation:
Some species may be affected and be killed off by the disease while others survive. This is the concept of natural selection, which means that the species that survive are all supposed to be adapted to be immune to the disease.