Mrs. Canales pointed to an apple sitting on her desk.
She asked her students to describe any forces acting
on the apple. This is what some of her stu-
dents said.
Archie: "The only force acting on the
apple is air pressure."
Sam: "There is one force acting on the apple. Gravity is the force that pulls on
the apple."
Soledad: "There are two forces: the desk pushes up on the apple and gravity pulls
downward on the apple."
Misha: "There are many forces acting on the apple; but, it is the holding force in the
apple that keeps it on the desk."
Tess: "There are no forces acting on the apple because the desk stops any forces
from acting on it."
Which student do you most agree with?
Answers
Answer:
Misha
Explanation:
Archie, Soledad and Sam are right about the types forces, but not how many. Misha is the only one who says there are multiple. Tess is just wrong.
Related Questions
Dichotomous keys consist of a series of paired choices, called couplets, that reflect physical characteristics of the organism.
a. True
b. False
Answers
Dichotomous keys is a device that enables to become aware of an unknown organism.
A dichotomous secret is a chain statements inclusive of 2 alternatives that describe traits of the unidentified organism. Conventional dichotomous keys include a chain of paired alternatives referred to as couplets. Each couplet gives the consumer with opportunity and extraordinary units of characters that distinguish one organization of organisms from the other.
Dichotomous keys include a chain of statements with alternatives in every step with a purpose to lead customers to the precise identification. This form of key isn't difficult to use, however makes greater experience whilst college students adopt the procedure of creating one earlier than using.
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A number of different mutations can alter structure, including __________. (check all that apply.)
Answers
A number of different mutations can alter structure, including _____inversions, deletions, translocations, duplications_____.
What is inversions, deletions, translocations, duplications ?The transfer of a chromosomal segment to another chromosome is known as chromosomal translocation. When a piece of a chromosome separates, spins 180 degrees, then reattaches to the same chromosome, this process is known as chromosomal inversion.
The primary distinction between chromosome deletion and duplication is that although chromosome deletion results in the loss of genetic material, chromosome duplication results in the addition of extra copies of genetic material. The genetic makeup of an organism is carried on chromosomes.Learn more about Mutation here:
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A population of 40 deer are introduced into a wildlife sanctuary. It is estimated that the sanctuary can
sustain up to 600 deer. Absent constraints, the population would grow by 60% per year. Estimate the population
after one year Pi Estimate the population after two years P2 -
Answers
The population of deer in the wildlife sanctuary can be estimated using the formula:
P(t) = P(0) * (1 + r)^t
where P(t) is the population after t years, P(0) is the initial population, r is the growth rate per year, and t is the number of years.
In this case, the initial population (P(0)) is 40 deer, the growth rate (r) is 60% per year (0.60), and we need to estimate the population after one year (P1) and two years (P2).
To calculate P1:
P(1) = 40 * (1 + 0.60)^1
P(1) = 40 * (1 + 0.60)
P(1) = 40 * 1.60
P(1) = 64
Therefore, the estimated population after one year is 64 deer.
To calculate P2:
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * 1.60^2
P(2) = 40 * 2.56
P(2) = 102.4
Therefore, the estimated population after two years is 102.4 deer.
It's important to note that these are estimates and assume that there are no constraints on the population growth. In reality, factors like limited resources, predation, and disease can affect the growth rate and population size.
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Please help 100 points
What units will you use to collect your data?
“How does the color of light affect plant growth?”
Answers
Answer:
It is important to carefully consider the units you will use to collect data when conducting a scientific experiment. In the experiment described, "How does the color of light affect plant growth?", there are a few different options for units that you could use to collect data. Some examples of units that might be relevant for this experiment include:
Length: You could measure the length of the plants at different points during the experiment to track their growth over time.
Width: You could also measure the width of the plants, either at specific points along their stems or by measuring the diameter of the entire plant.
Height: Alternatively, you could measure the height of the plants from the soil surface to the top of the highest leaves.
Mass: You could also measure the mass of the plants, either by weighing them on a scale or by using a balance to measure their weight.
the sequence of brain regions from the evolutionarily oldest to newest is
Answers
Brainstem, limbic system, and cerebral cortex are the order of the brain's regions in chronological order of age.
From oldest to newest, what are the brain areas?Three levels, the oldest of which is the brain stem, and has evolved over time. Middle: Cerebellum. Most recent: Cortex.The oldest and most interior portion of the brain is the brain stem. As seen in Figure 4.7, "The Brain Stem and the Thalamus," it is intended to regulate the most fundamental bodily activities, such as breathing, focus, and movement.Automatic survival mechanisms are the responsibility of the brainstem, the oldest portion of the brain.Brainstem, limbic system, and cerebral cortex are the order of the brain's regions in chronological order of age.To learn more about brain's regions refer to:
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How would you draw a DNA molecule that is 10 nucleotides in size?
Answers
Answer:
Explanation:
Adenine an Guanine are purines while cytosine and thymine are pyrimidines.
According to Chargaff's rule, the ratio of purines to pyrimidines is equal.
Thus, the number of cytosine (C) will be equal to the number of guanine (G).
As it is given that the number of guanine-containing nucleotides = 410
Thus, G = C = 410
Now, G + C = 410 + 410 = 820
The number of adenine (A) will be equal to the number of thymine (T).
Thus, A + T = Total number of nucleotides – Nucleotides containing G and C nitrogenous bases
= 1500 – 820 = 680
Therefore, A = 340 and T = 340
The number of adenine will be equal to number of thymine, which is 340.
Therefore, Number of pyrimidines that the segment possess = C + T
= 410 + 340 = 750
Which is the correct chemical equation for photosynthesis?
A.) 6CO₂ + 6H₂O ® C₆H₁₂O₆ + 6O₂
B.) C₆H₁₂O₆ + 6O₂ ® 6CO₂ + 6H₂O
C.) 3CO₂ + 3H₂O + 3O₂ ® C₆H₁₂O₆
D.) 6O₂ + 6H₂O ® C₆H₁₂O₆ + 6CO₂
Answers
6CO₂ + 6H₂O ® C₆H₁₂O₆ + 6O₂ is the correct chemical equation for photosynthesis. Therefore, the correct statement is option A.
What is Photosynthesis?Photosynthesis is the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to produce organic compounds and oxygen. The process of photosynthesis involves two main stages: light-dependent reactions and light-independent reactions. The chemical equation for photosynthesis is: 6CO₂ + 6H₂O ® C₆H₁₂O₆ + 6O₂
The above equation represents the combination of six molecules of carbon dioxide and six molecules of water in the presence of sunlight to produce one molecule of glucose and six molecules of oxygen.
During light-dependent reactions, light energy is absorbed by chlorophyll molecules to generate ATP and NADPH and in light-independent reactions, ATP and NADPH are used to convert carbon dioxide into organic compounds, such as glucose.
Therefore, 6CO₂ + 6H₂O ® C₆H₁₂O₆ + 6O₂ is the chemical equation for photosynthesis.
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Which cellular structure is the site of photosynthesis?
ribosome
chloroplast
nucleus
mitochondria
Answers
Answer:
Its b
Explanation:
What is the lava like that produces an eruption like this one? A. thin and runny B. thick and runny C. thick and sticky D. thin and rich in gas
Answers
the most atp is generated during which phase of cellular respiration?
Answers
The most ATP is generated during the electron transport chain phase of cellular respiration. The electron transport chain is the final stage of cellular respiration that takes place in the inner mitochondrial membrane.
During this phase, high-energy electrons, carried by molecules such as NADH and FADH2, are passed through a series of protein complexes and carriers. As the electrons move through the electron transport chain, they transfer energy, which is used to pump protons (H+) across the inner mitochondrial membrane, creating an electrochemical gradient.
This gradient drives the synthesis of ATP through a process called oxidative phosphorylation. Each NADH molecule can produce approximately 2.5 to 3 ATP, while each FADH2 molecule can generate approximately 1.5 to 2 ATP. The electron transport chain is responsible for the majority of ATP production in cellular respiration.
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the muscular tube that connects the mouth cavity to the stomach
Answers
Answer:
Answer:
Esophagus
I hope I have helped you babes ❤️
Debris from the west coast of the U.S. Often collects in the Great Pacific Garbage Patch. What are the most likely impacts to marine life in this area?
Answers
Answer:
Microplastics contain harmful chemicals that can accumulate in the food chain.
Explanation:
I have taken the exam, and this was shown as the correct answer. Although some classes may be different depending on the wording of the question. But I hope this helps! Good Luck with the exams!
lipid-anchored membrane proteins that link to an isoprenoid chain via the sulfur atom of cysteine are called ________ proteins.
A) prenylated
B) sulfide-linked
C) cysteine-anchored
D) prostaglandins
Answers
Option A is correct. Lipid-anchored membrane proteins that link to an isoprenoid chain via the sulfur atom of cysteine are called prenylated proteins.
A lipid group is added to a protein as part of the post-translational modification process known as prenylation, which can help the protein adhere to the cell membrane.
Signal transduction and membrane trafficking are two physiological processes in which prenylated proteins are crucial. Farnesylation, geranylgeranylation, and geranylgeranylation with an extra methylation are the three different kinds of prenylation.
Proteins that have been Farnesylated are joined to a 15-carbon farnesyl group, whereas those that have been geranylgeranylated are joined to a 20-carbon geranylgeranyl group. Double-prenylated proteins are those that have had their methyl group prenylated twice.
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The lipid-anchored membrane proteins that link to an isoprenoid chain via the sulfur atom of cysteine are called prenylated proteins. The correct option is A.
These proteins play a crucial role in various cellular processes such as signal transduction, membrane trafficking, and cell proliferation.
Prenylated proteins are classified into two categories based on the type of isoprenoid chain they are linked to, either a farnesyl group or a geranylgeranyl group.
The linkage of these lipids to the cysteine residue is facilitated by a group of enzymes called prenyltransferases.
The prenylation process plays an essential role in the regulation of protein function and localization within the cell.
Understanding the mechanisms of prenylation has important implications for the development of drugs targeting prenyltransferase enzymes for the treatment of various diseases. Therefore the right option is A, prenylated protein.
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My gardener removed all the flowers from my tulip plants. This will interfere with which system of the tulip plant?
vascular system
anchorage system
reproductive system
excretory system
Answers
Answer:
reproductive system
Explanation:
The flower of any plant is the reproductive unit of that plant. On other words, it is the part responsible for sexually propagating that plant. The flower of a plant contains the male and female reproductive organs i.e. pollen and ovary. Therefore, Flowers are integral parts of the reproductive system in plants.
According to this question, a gardener removes all the flowers from tulip (
the protein sample is mixed with a matrix prior to analysis. what is the function of a matrix in maldi-tof ms analysis?
Answers
In MALDI technology, the matrix does have a special impact on the analysis of the sample: it dilutes the sample to separate the clustered macromolecule.
During protein digestion, peptides could be examined using MALDI-TOF MS for further levels usually confirmed using peptide mass fingerprinting. Simple operation, good mass precision, high resolution, and otherwise sensitivity are all features of MALDI-TOF mass spectrometry.
it protects the sample by absorbing laser energy and transferring it to the sample instead of directly exposing it to the laser.
In the clinical microbiology laboratory, matrix-assisted laser classes in social and emotional of flight (MALDI-TOF) spectrometry (MS) has gained popularity as a method for the quick and precise determination of bacteria, mycobacteria, and some fungal infections.
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12. The life-cycle theory of consumption can be summarized as
follows:
A) retired people need less so they can save more than working
people
B) people want instant gratification and seldom worry about
Answers
The life-cycle theory of consumption can be summarized as follows: people want instant gratification and seldom worry about the future. The correct option is (B).
This statement is incorrect. The life-cycle theory of consumption actually suggests the opposite. According to this theory, individuals adjust their consumption patterns over their lifetime to ensure a smooth and consistent level of consumption.
It recognizes that individuals have different income and expenditure patterns at different stages of their life.
The theory posits that individuals tend to save and accumulate wealth during their working years when their income is higher.
This allows them to maintain their consumption levels during retirement when their income typically decreases. Retired people are expected to draw from their accumulated savings to support their consumption needs.
In contrast, working individuals often have higher consumption needs due to various factors such as raising a family, paying off debts, and investing in education or housing.
They may have less disposable income available for saving during this phase of their life.
Therefore, the life-cycle theory of consumption suggests that retired people need to draw on their savings accumulated during their working years to support their consumption, and it emphasizes the importance of long-term financial planning and saving.
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In living systems, the predominant organic molecules are ________, which are largely responsible for the structure, behavior, and unique qualities of a cell
Answers
The majority of organic molecules in living systems are proteins, which play a key role in a cell's structure, function, and distinctive characteristics.
Protein is used by the body in a variety of ways. It fosters tissue growth and repair, encourages metabolic reactions, and synchronizes biological processes. Your body's structural foundation is provided by proteins, which also guarantee ideal pH and fluid equilibrium.
They also transport and store nutrients, help maintain a robust immune system, and, if required, can act as a source of energy. Because of all of these tasks, protein is one of the nutrients that is most important for your health.
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What principle can be applied to all chemical reactions?
A) conservation of mass
B) reactants formed from products
C) energy loss theory
D) coefficient principle
Answers
a black haired true breeding guinea pig is crossed with a white haired true breeding guinea pig. all of the offspring have black hair.
a. which color is dominant?
b. what are the genotypes and phenotypes of the parents?
c. what are the genotypes and phenotypes of the offspring?
Answers
a. Their phenotypes are black-haired and white-haired, respectively.
b. The genotype and phenotype of all offspring are BB and black-haired, respectively.
c. All of the offspring have black hair, so they must all have the genotype BB.
What are the genotypes and phenotypes of the parents?In this case, we can infer that black hair color is dominant over white hair color since all offspring have black hair.
Since they are both true breeding, their genotypes are homozygous dominant and homozygous recessive, respectively. Therefore, the genotypes of the parents are BB and bb. Their phenotypes are black-haired and white-haired, respectively.
Let's denote the black-haired true breeding guinea pig as BB and the white-haired true breeding guinea pig as bb.
Therefore, the genotype and phenotype of all offspring are BB and black-haired, respectively.
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A scientist conducted an experiment to determine the effect of environment on the color of fur of a himalayan rabbit. the himalayan rabbit typically has a white coat except for its colder nose, feet, tail, and ears, which are black. the black hair allows the rabbit to absorb more heat and keep these extremities warm. the scientist shaved an area of hair on the back of each rabbit, then placed an ice pack over the shaved area on only rabbit
a. the scientists kept the area chilled with an ice pack until the hair had grown back on both rabbit's backs.
Answers
The question is incomplete as the figure and question part is missing, however, the figure is attached with the answer and question as follows:
what is the independent variable in this experiment?
What is the hypothesis she is testing?
Rabbit B essential to this experiment?
Answer:
The correct answers are:
The ice (temperature is the variable).
The fur of the Himalayan rabbit changes color with temperature.
Rabbit B is the control group. An experiment without control has no value because the cause of the change cannot be determined.
Explanation:
In this experiment, the researcher is finding the effect of the temperature on the color of the fur to find this she needs a hypothesis which is The fur of the Himalayan rabbit changes color with a change in the temperature.
To test this she needs to have manipulated the temperature which is the independent variable her and she used the ice to manipulate it so the independent variable is ice. The rabbit B has not got any type of treatment as rabbit A gets so it is the control group that is used to compare it with the experimental group.
can someone help plzzzzzzzzzzzzzzzzzz
Answers
Answer:
your answer is
Bright Color
How do human activities lead to primary succession?
Answers
Answer:
This succession is influenced by environmental factors such as soil type, water regimes, vegetation history, climate, and invasive species. Humans affect all of these factors. The human dimension introduces the greatest amount of unknown variability. Forest lands are under increasing development pressure.
Help Me out please
I will mark brainiest
Answers
What is the main expected consequence of global climate change on rainfall?.
Answers
_________ shields blood from the glass of the tube and prevents it from clotting.
Answers
The anticoagulant shields blood from the glass of the tube and prevents it from clotting.
What are anticoagulants?Anticoagulants are medications that prevent blood from clotting or forming clots in the veins or arteries. These are also referred to as blood thinners. It works by stopping blood cells from clumping together, which can cause clots to form in the blood vessels.
Anticoagulants are often prescribed for people who are at risk of developing blood clots, such as individuals with heart disease, stroke, or deep vein thrombosis. They are also used to prevent clots in people with atrial fibrillation (a type of irregular heartbeat), as well as to treat clots that have already formed.
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True or False? If two genes are LINKED that means that their maternal and paternal alleles cannot segregate. True O False
Answers
The statement "If two genes are LINKED that means that their maternal and paternal alleles cannot segregate" is false.
When genes are linked, it means they are located on the same chromosome and tend to be inherited together. However, maternal and paternal alleles can still segregate through the process of crossing over during meiosis. During crossing over, homologous chromosomes exchange genetic material, leading to the creation of new combinations of alleles.
Therefore, while linked genes may not assort independently, the alleles from both parents can still segregate through crossing over.
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Which statement best explains the difference between water temperature at
the poles and water temperature at the equator?
O A. The water is denser and saltier near the equator, so it holds more
heat.
B. The sun's rays strike the water at an angle at the poles.
C. Deep sea vents pump steam into the conveyor belt near the
equator.
D. Due to Earth's rotation, gyres near the poles flow clockwise.
Answers
Answer:
B. The sun's rays strike the water at an angle at the poles.
Answer:
b
Explanation:
At high latitudes, ocean waters receive less sunlight – the poles receive only 40 percent of the heat that the equator does. These variations in solar energy mean that the ocean surface can vary in temperature from a warm 30°C (86°F) in the tropics to a very cold -2°C (28°F) near the poles
which of the following statements is correct regarding lung sonography performed during an efast exam? a. the exam is started on the anterior chest in the second or third intercostal space. b. lung sliding excludes pneumothorax at that location. c. the probe should be positioned perpendicular to the chest wall between two adjacent ribs. d. all of the above e. a and b only
Answers
The exam is started on the anterior chest in the second or third intercostal space, lung sliding excludes pneumothorax at that location, and the probe should be positioned perpendicular to the chest wall between two adjacent ribs.
Pneumothorax :
A pneumothorax is a collapsed lung. It occurs when air leaks into the space between the lung and chest wall. This air pushes on the outside of the lung and makes it collapse. It can be a complete lung collapse or only a portion of the lung can collapse.
What are the Symptoms of Pneumothorax?
Shortness of breath, Fatigue, Sharp, stabbing chest pain that worsens when trying to breath in, Bluish skin caused by a lack of oxygen, A dry, hacking cough, Rapid breathing and heartbeat, etc.
The Answer is D. All of the above
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how is karyogamy related to plasmogamy? check all that apply. check all that apply two haploid nuclei fuse in karogamy. two haploid nuclei fuse in karogamy. a diploid nucleus splits in karyogamy. a diploid nucleus splits in karyogamy. the products of plasmogamy are combined in karyogamy. the products of plasmogamy are combined in karyogamy. the products of plasmogamy are split in karyogamy. the products of plasmogamy are split in karyogamy.
Answers
Karyogamy is the process by which two haploid nuclei fuse to form a diploid nucleus. It is an important step in sexual reproduction in many organisms. Plasmogamy, on the other hand, is the fusion of two cells' cytoplasm, which is the material surrounding the nucleus.
A diploid nucleus does not split in karyogamy, as it is the fusion of two haploid nuclei. The products of plasmogamy are not split in karyogamy but rather combined.
In summary, plasmogamy and karyogamy are both important steps in sexual reproduction that lead to genetic diversity in offspring. Plasmogamy brings together two cells' cytoplasm, allowing for genetic exchange, while karyogamy fuses the haploid nuclei to form a diploid nucleus, which undergoes meiosis to produce genetically diverse offspring.
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If dev also has an absolute advantage in growing strawberries and raspberries , he will _________.
Answers
Have a competitive advantage in one of the activity but not both.
If dev also has an absolute advantage in growing strawberries and raspberries , he will have a competitive advantage in one of the activity but not both.
What is comparative advantage?Comparative advantage is the capacity of an economy to produce a particular good or service at a lower opportunity cost than its trading rivals.The notion of comparative advantage explains why trade may benefit people, countries, or businesses.The importance of comparative advantageCompanies that enjoy a comparative advantage can provide their goods and services at lower prices than their competitors, which boosts their profit margins and increases their sales margins.How is comparative advantage determined?If a country produces a good or service with the lowest opportunity cost, it is said to have a comparative advantage.To learn more about comparative advantage visit:
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