18. Which ypes of mutations positve, ngative or neutral,are mase lilely to sen i firing neutral, are most likely to be seen in offspring several generations after the mutation occurred? Explain your reasoning. 19. Consider the following scenarios. State whether the mutation is likely to be passed on to the offspring of the organism. Explain your reasoning. a. A single bacteria cell contains a positive mutation in its DNA b. A skin cell on a cat contains a positive mutation in its DNA. c. A sperm cell in a whale contains a positive mutation in its DNA.
Answers
The type of mutations, positive, negative or neutral, which are most likely to be seen in offspring several generations after the mutation occurred, are neutral mutations.
A neutral mutation is a type of genetic mutation that occurs when there is a slight alteration or shift in the genetic code of an organism that does not affect the phenotype or survival of that organism or its offspring. Neutral mutations can, however, accumulate over time, providing evolutionary raw material for later adaptation or speciation events. Neutral mutations are more likely to be passed down to the next generation because there is no selection pressure acting against them.
a. A single bacteria cell contains a positive mutation in its DNA: As bacteria reproduce by binary fission, the positive mutation is highly likely to be passed on to the offspring .b. A skin cell on a cat contains a positive mutation in its DNA: The positive mutation is unlikely to be passed on to the offspring because skin cells are not involved in reproduction. Only mutations that occur in cells that form eggs or sperm are likely to be passed down. c. A sperm cell in a whale contains a positive mutation in its DNA: As sperm cells are involved in reproduction, the positive mutation is highly likely to be passed on to the offspring.
However, Neutral mutations are more likely to be passed down to the next generation because there is no selection pressure acting against them.
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Related Questions
What statement is true about vines in the rainforest biome?
A) They grab onto several trees to gain access to sunlight.
B) They keep the structure of the canopy intact.
C) They can grow up to 3,000 ft long.
D) All of the above
PLS HELP ASAP
Answers
Answer:
D
Explanation:
Hope this helps you complete your question :)
Why is communication important during pandemic flu response?
it allows health organizations to effectively collaborate in their efforts.
neither a nor b
both a and b
it allows health organizations to give the public important information.
Answers
Communication is crucial during a pandemic flu response because it enables health organizations to effectively collaborate and share vital information with the public. By maintaining clear and concise communication channels, these organizations can coordinate their efforts, exchange data, and implement necessary measures to mitigate the impact of the pandemic. Additionally, communication allows health organizations to provide accurate and timely updates to the public, fostering awareness and adherence to safety guidelines, ultimately reducing the spread of the virus.
Communication is crucial during pandemic flu response for several reasons. Firstly, it allows health organizations to effectively collaborate in their efforts, ensuring that resources are allocated efficiently and everyone is working towards the same goal. Secondly, communication enables health organizations to give the public important information about the virus, its symptoms, and how to prevent its spread. This information is essential in helping people take appropriate measures to protect themselves and their communities. A lack of communication can lead to confusion and panic, exacerbating the situation. Therefore, both options A and B are correct - communication is essential for effective collaboration between health organizations as well as for sharing important information with the public.We can see how critical communication is in a pandemic response.
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To where does carbon dioxide go?
Answers
me animation on constructing the water cycle. Once you have completed a correct water cycle, include a paragraph of the process, and how certain steps of the process may affect you.
Answers
In the diagram below of a human skeleton, what is the name of the bone
labeled K?
O A. Tibia
OB. Femur
C. Fibula
D. Humerus
bib Coge
Vertebra
B
Carpals
Metacarpals
Phalanges
C
D
E
Cranium
G
H
K
Tarsals
Metatarsals
Phalanges
Answers
The part labelled K is called from the skeleton image, the femur. Option B
What is the skeleton?
The skeleton, also known as the skeletal system or the bony framework, is the internal framework of the human body that provides support, structure, and protection. It is composed of bones, cartilage, ligaments, and tendons.
The human skeleton consists of approximately 206 bones that are classified into two main categories: axial skeleton and appendicular skeleton. The axial skeleton includes the skull, vertebral column, and ribcage, while the appendicular skeleton includes the bones of the limbs (arms and legs), shoulder girdle, and pelvic girdle.
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● Hypothesis: Revise 1
To help your investigation, here is some more data about the farm.
How should I include my data?? Will give points and I picked natural selection
Answers
To write an inclusive hypothesis from investigation, it should be structured with Mechanism of Evolution, Hypothesis and Data.
How to hypothesize?Mechanism of Evolution
The mechanism of evolution that I think caused the increase in FQ resistance is natural selection. Natural selection is the process by which organisms that are better adapted to their environment are more likely to survive and reproduce. In this case, the bacteria that are resistant to FQ are more likely to survive and reproduce because they are not killed by the drug. This means that the population of bacteria will become more resistant to FQ over time.
Hypothesis
My hypothesis is that the increase in FQ resistance in the bacteria on the farm is due to natural selection. I believe that this is because the bacteria that are resistant to FQ are more likely to survive and reproduce, which means that the population of bacteria will become more resistant to FQ over time.
Data
The new data supports my hypothesis because it shows that the number of bacteria that are resistant to FQ has increased. The data also shows that the bacteria that are resistant to FQ are more likely to be found in the environment where the FQ is being used. This suggests that the bacteria are evolving to become resistant to the FQ.
How to Include the Data
You can include the data in your hypothesis by stating that the increase in FQ resistance is due to the fact that the bacteria that are resistant to FQ are more likely to survive and reproduce. You can also include the data by showing a graph of the number of bacteria that are resistant to FQ over time.
This is an example of how to include the data in the hypothesis:
I hypothesize that the increase in FQ resistance in the bacteria on the farm is due to natural selection. This is because the bacteria that are resistant to FQ are more likely to survive and reproduce, which means that the population of bacteria will become more resistant to FQ over time. The data supports this hypothesis because it shows that the number of bacteria that are resistant to FQ has increased. The data also shows that the bacteria that are resistant to FQ are more likely to be found in the environment where the FQ is being used. This suggests that the bacteria are evolving to become resistant to the FQ.
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A city in the U.S. Southwest is planning to restore some wetlands in a park running along its downtown river. A question has been raised about mosquitoes. Some think that mosquitoes will promote the bird population and that the natural beauty of the project will outweigh the risks. Others are worried that the mosquitoes might bring of the such diseases as malaria, especially as more people migrate from the south. How should city planners balance these concerns?
Answers
City planners faced with the question of balancing concerns regarding mosquitoes in wetland restoration projects need to consider both the potential benefits and risks involved. On one hand, mosquitoes can serve as a food source for birds and contribute to the biodiversity and ecological balance of the wetland ecosystem.
They play a role in supporting the bird population and enhancing the natural beauty of the park. These aspects can be important factors in promoting environmental sustainability and attracting visitors to the area. On the other hand, there are legitimate concerns about the potential risks associated with mosquitoes, particularly in terms of disease transmission. While malaria is not typically a concern in the United States, other mosquito-borne diseases such as West Nile virus and Zika virus may pose risks to public health. As migration patterns change and more people move from regions where these diseases are prevalent, the potential for transmission could increase.
To strike a balance, city planners should consider implementing measures to mitigate the risks associated with mosquitoes while maximizing the benefits of wetland restoration. This can include implementing mosquito control strategies such as monitoring and targeted insecticide use, creating habitats for natural predators of mosquitoes, and providing education and awareness programs for the public. By adopting a comprehensive approach that addresses both ecological and public health considerations, city planners can create a wetland restoration project that balances the promotion of biodiversity and natural beauty with the protection of public health.
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When does heat produce a chemical change?
Answers
Answer:
Heat produces a chemical change when energy is released in the form of light
Explanation:
Sequence of events occurring in DNA replication
Answers
Answer: b
Explanation: just did it on edg
Calcium is an example of a(n):_____.
a) element
b) compound
c) homogeneous mixture
d) heterogeneous mixture
Answers
Calcium is an example of an element. An element is a substance that cannot be broken down into simpler substances by chemical means. Correct option is a.
It is composed of only one type of atom. Calcium is represented by the symbol Ca on the periodic table and has an atomic number of 20. Elements like calcium have distinct properties that differentiate them from compounds and mixtures. For example, calcium is a silver-gray metal with a high melting point and reacts vigorously with water.
It is commonly found in the Earth's crust and plays a vital role in various biological processes, including bone formation and muscle contraction. In contrast, compounds are substances composed of two or more elements chemically combined. For instance, calcium carbonate (CaCO3) is a compound made up of calcium, carbon, and oxygen atoms.
Homogeneous mixtures have a uniform composition throughout, like salt dissolved in water. Heterogeneous mixtures, on the other hand, have visibly distinct components, such as a salad with different vegetables. Hence, correct option is a.
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What microscope uses a series of lenses to magnify an object?.
Answers
Answer:
modern compound light microscope
1. Which of the following situations will lead to natural selection? a. The seeds of two plants land near each other and one grows larger than the other. b. Two types of fish eat the same kind of food, and one is better able to gather food than the other. c. Male lions compete for the right to mate with females, with only one possible winner. d. all of the above
2. Which description is an example of a phenotype? a. A certain duck has a blue beak. b. A mutation occurred to a flower. c. Most cheetahs live solitary lives. d. both a and c
3. Which situation is most likely an example of convergent evolution? a. Squid and humans have eyes similar in structure. b. Worms and snakes both move without legs. c. Some bats and birds have wings that allow them to fly. d. all of the above
4. Which situation would most likely lead to allopatric speciation? a. Flood causes the formation of a new lake. b. A storm causes several large trees to fall down. c. A mutation causes a new trait to develop. d. An injury causes an organism to seek out a new food source.
5. What is the main difference between dispersal and vicariance? a. One leads to allopatric speciation, whereas the other leads to sympatric speciation. b. One involves the movement of the organism, and the other involves a change in the environment. c. One depends on a genetic mutation occurring, and the other does not. d. One involves closely related organisms, and the other involves only individuals of the same species.
6. Which variable increases the likelihood of allopatric speciation taking place more quickly? a. lower rate of mutation b. longer distance between divided groups c. increased instances of hybrid formation d. equivalent numbers of individuals in each population
7. What is the main difference between autopolyploid and allopolyploid? a. the number of chromosomes b. the functionality of the chromosomes c. the source of the extra chromosomes d. the number of mutations in the extra chromosomes
8. Which reproductive combination produces hybrids? a. when individuals of the same species in different a. geographical areas reproduce b. when any two individuals sharing the same habitat reproduce c. when members of closely related species reproduce d. when offspring of the same parents reproduce
9. Which condition is the basis for a species to be reproductively isolated from other members? a. It does not share its habitat with related species. b. It does not exist out of a single habitat. c. It does not exchange genetic information with other species. d. It does not undergo evolutionary changes for a significant period of time.
10. Which situation is not an example of a prezygotic barrier? a. Two species of turtles breed at different times of the year. b. Two species of flowers attract different pollinators. c. Two species of birds display different mating dances. d. Two species of insects produce infertile offspring.
11. Which term is used to describe the continued divergence of species based on the low fitness of hybrid offspring? a. reinforcement b. fusion c. stability d. punctuated equilibrium
12.Which components of speciation would be least likely to be a part of punctuated equilibrium? a. a division of populations b. a change in environmental conditions c. ongoing gene flow among all individuals d. a large number of mutations taking place at once
Answers
All of the above
What is natural selection?
One method of evolution is natural selection. More environment-adapted organisms are more likely to survive and pass on the genes that contributed to their success. Over time, species change and diverge as a result of this process.
As a result of natural selection, reproductive individuals pass on genetic changes that are advantageous to their progeny's survival. New creatures are created as a result, and they have a higher chance of surviving and reproducing. For instance, giraffes have an advantage over other species because of their long necks, which have evolved to allow them to eat leaves that other species cannot. Longer-necked individuals were able to reproduce and pass on their trait to the next generation because they had access to better food sources. Shorter-necked individuals would be less likely to survive and pass on their genes as a result of having less food availability.
The plant that grows larger has seeds adapted to the environment, which proliferate more readily than seeds from other plants.
One of the two fish species that consume the same food is more adapted and can thus gather more food.
Favorable male lions will be able to compete with other male lions for female mates and will be preferred over them because of their superior adaptation and physical characteristics.
Natural selection, also referred to as "survival of the fittest," is a phenomenon in which organisms that are best adapted to a particular environment are chosen while inferior organisms are weeded out.
In all three cases, biological evolution will take place as a result of selection favoring organisms that are better adapted to their surroundings and capable of competing with other species for survival.
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The genetic material in living organisms is composed of organic molecules known as-
O starches
O lipids
O nucleic acids
O fatty acids
Answers
what physical transformations occurred to allow for the fully aquatic life modern whales have today?
Answers
Answer:
Over time whale's descendants spent more and more time in the water and their bodies became adapted for swimming. Their front legs became flippers. A thick layer of fat called blubber replaced their fur coats to keep them warm and streamlined.Explanation:
What is aquatic science and what can we learn from it
Answers
Aquatic science is the interdisciplinary study of freshwater and marine ecosystems, their physical, chemical, biological, and geomorphological properties, and the interactions between these systems and human activities. By studying aquatic science, we can learn a lot about the world and its ecosystems.
What is the aim of aquatic science?The goal of aquatic science is to understand the complex relationships between the physical, chemical, biological, and geological processes that control the behavior and functioning of aquatic systems.
We can gain a better understanding of the processes that regulate the Earth's water cycle, the ways in which pollutants and other human activities affect freshwater and marine ecosystems, and the impacts of climate change on these systems. Aquatic science can also provide valuable information about the biodiversity and distribution of aquatic species, and help us to understand how these species interact with one another and with their environment.
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cardiac muscle cells obtain energy almost exclusively through
Answers
Cardiac muscle cells obtain energy almost exclusively through aerobic respiration. This process occurs in the mitochondria of the cells and involves the breakdown of glucose and other molecules to produce ATP, the energy currency of the cell.
Unlike skeletal muscle cells, which can also obtain energy through anaerobic respiration, cardiac muscle cells rely almost entirely on oxygen to generate ATP. This is because the heart requires a constant supply of energy to maintain its pumping function and cannot tolerate the buildup of lactic acid that occurs with anaerobic respiration. In addition to glucose, cardiac muscle cells can also use fatty acids and ketones as fuel sources during times of prolonged exercise or fasting. However, glucose remains the primary source of energy for these cells under normal conditions. The ability of cardiac muscle cells to efficiently produce ATP through aerobic respiration is essential for maintaining heart function and overall cardiovascular health.
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Driver mutations provide a growth advantage to a tumor cell. which type of mutation is known to accumulate in cancer cells but has no direct contribution to the cancer phenotype?
Answers
Passenger mutation is known to accumulate in cancer cells but has no direct contribution to the cancer phenotype
What is Passenger Mutation ?Passenger mutations are not ones that don't affect fitness but were discovered in a cell that also happened to have or later acquired a driver mutation. As a result, they are present in every cell that also carries the driver mutation. However, in order to assess the relevance of the mutational data and put them into the context of current clinical and experimental cancer research, new, quantitative models are required. It is thought that only a tiny portion of the overall mutations in a tumour are driver mutations. One approach for distinguishing driver mutations from passenger mutations is to predict the functional impact of a mutation using additional biological information about the sequence and/or structure of the protein encoded by the mutated gene.
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How do substances get into and out of the cell?
Answers
Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
One difference between photosynthesis and cellular respiration is that cellular respiration:
Answers
The main difference between photosynthesis and cellular respiration is that photosynthesis is an anabolic process, where the synthesis of organic compounds occurs, storing energy whereas cellular respiration is a catabolic process, where the stored organic compounds are utilized, producing energy.
a) State TWO ways by which diffusion is important to living organisms.
Answers
Answer:
-It allows them to get energy and make them grow/develop.
-It helps get rid of their waste products
Is it possible for genetic recombination to occur during meiosis II?
a.Yes, sister chromatids on one chromosome can exchange genetic material.
b.Yes, slight overlap of adjacent chromosomal arms makes it possible for crossing over to occur between two nonhomologous chromosomes.
c.No, recombination requires two homologous but nonidentical chromosomes.
d.No, sister chromatids cannot get close enough during metaphase II.
Answers
No, sister chromatids cannot get close enough during metaphase II so genetic recombination does not occur, option d is correct.
During meiosis I, genetic recombination occurs when homologous chromosomes exchange segments of genetic material through a process called crossing over. This results in the formation of recombinant chromosomes with a combination of genetic information from both parents. Meiosis II is the second stage of meiosis and involves the separation of sister chromatids.
The sister chromatids, which are identical copies resulting from DNA replication in the S phase of the cell cycle, are pulled apart and distributed to the daughter cells during anaphase II. However, there is no opportunity for genetic recombination to occur during this stage because the sister chromatids are too close together and do not have the opportunity to exchange genetic material, option d is correct.
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what is the immutability of species? how does it relate to evolution?
Answers
Answer: As mentioned by option the immutability of species is an idea that each species of the organism does not and cannot change. They all came into being (i.e., created) as what they are now. This idea was disproven by Charles Darwin's theory of evolution (options B, C, and D are all ideas within the theory of evolution).
Explanation: The species are an organism that is immutability.
Question 5 of 10
Which energy source is renewable?
A. Geothermal
B. Coal
C.Oil
D. Natural gas
Answers
Answer:
A
Explanation:
geothermal energy, solar energy, and wind energy increased, and in 2019, the combined percentage share of these renewable energy sources was greater than the combined share of wood and hydro energy.Jun 22, 2020
Start off with 2,500 plants of which 50% have medium-tip leaves, 25% have wide-tip leaves, and 25% have drip-tip leaves. Each circle in your simulation will represent 125 organisms. Calculate how many circles you need for each trait, and then create your simulation. Be sure to include a key that states the color coding for each trait
Answers
robbing someone of oxygen. 2: to pass away from lack of air. to choke or smother someone or something. The flowers we planted are being choked out by weeds. 4. to experience a dearth of fresh air.
With an atomic number of 8 and the chemical symbol O, oxygen is the eighth chemical element. It belongs to the chalcogen group in the periodic table, is a very reactive nonmetal, and is an oxidising agent that easily forms oxides with most elements as well as with other compounds. The most plentiful element on Earth and the third most prevalent element in the universe (after helium and hydrogen) is oxygen. The element forms dioxygen, an odorless and colorless diatomic gas with the formula O2 when two of its atoms come together at ordinary temperature and pressure. Currently, 20.95% of the Earth's atmosphere is made up of diatomic oxygen gas, however, over very long stretches of time, this percentage has shifted significantly. The Earth's crust is over 50% oxides, which are composed of oxygen.
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A team of scientists is studying three related species of thrushes, which are a type of bird. In all three species, the thrushes feed on insects and build nests in trees. The team uses a computer simulation to predict the populations of each species in a tract of forest, both with and without the presence of other thrush species. The results are shown in the table.
Based on the computer simulations, which statement MOST likely describes an ecological relationship among the three species?
(A) All three species compete for the same niche, and species B is the strongest competitor.
(B) Species A and species C compete for the same niche, and species C is the stronger competitor.
(C) Species B fills a different niche than either species A or species C.
(D) Either species A or species C out-competes species B for its niche.
Answers
Based on the computer simulations, the statement that MOST likely describes an ecological relationship among the three species is:
Either species A or species C out-competes species B for its niche; option D.What is an ecological niche?An ecological niche is a particular place or position occupied by a species in an ecosystem.
The ecological niche of a species is where the species obtain its basic needs such as food, shelter and space.
Several species may also compete foe the same ecological niche, and the strong competitor among the species will grow and thrive in that particular niche.
Considering the results of the study when the species A, B, and C were placed in a given tract of the forest alone as well as in the presence of the other species, it can be concluded that the three species compete for the same resources and that species C is the strongest competitor.
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Jane and Jill wondered if the water plants required was related to the temperature of the air around the plants. The girls planted three pots of grass seed. Once the seeds germinated, they placed one pot in the sun, outdoors. They placed the second pot in the shade, outdoors. Finally, they place the third pot in a sunny greenhouse. All conditions were kept constant. The girls did not water any of the pots. They recorded the daily air temperature in all three locations, three times per day: 8:00 AM, 12:00 PM; 4:00 PM
what is the next logical step in jane and jills experiment?
A)check to see which set of the plants wilted first
b)water the group first to wilt
c)water the plants in the sunny locations ONLY
D)record air temp every 30 minutes
Answers
Answer:
B water group first to wilt
What is the function of the chromosomes in the cell nucleus?
Answers
Answer:
Chromosomes allow DNA to be accurately copied during these cell divisions. So one more time. Chromosomes are found in the nuclei of our cells and allow DNA to be accurately copied during cell division. This ensures that our inner workings proceed smoothly and efficiently
The function of the chromosomes in the cell nucleus is to store the genetic code that determines an organism's traits.
Chromosomes are thread-like objects that are found in the nucleus (center) of cells. A chromosome is made up of one DNA molecule and one protein. The cell's nucleus contains the chromosomes. They transport genes and aid in the transmission of traits from parents to children.
Despite the fact that chromosomes come in a variety of sizes, histone proteins enable them to compactly fit inside a nucleus. When most cells divide, the nucleus undergoes a unique process in which it disassembles and then reforms.
Chromosomes condense, the nucleolus vanishes, and the nuclear envelope disintegrates at the start of mitosis, allowing the majority of the nucleus's contents to escape into the cytoplasm.
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Hypertonic solutions are solutions that have a ___________ concentration of a __________ than the solution on the other side of the ____________________ membrane.
Based on this information, we can conclude that...
If a cell is placed in a _______________ _______________ then the cell will ____________ its water to the outside environment. This means the cell will _____________.
An example of this is clear when you place salad dressing on lettuce and allow it to sit for an hour. The outside environment (salad dressing) has a _________ solute ________________ than the lettuce. This will cause the lettuce to _________ because it is releasing ____________ to the outside environment.
Cells transport water in this fashion to ensure ______________ or equilibrium.
Word bank: hypertonic, homeostasis, higher, wilt, concentration, solute, higher, solution, shrink, semi-permeable, water, release
Answers
In comparison to another solution, a hypertonic solution has a higher solute concentration.
Thus, The opposite solution, which has a lower concentration, is the hypotonic solution. Researchers must contrast the components of cells with their environment.
When a cell is positioned in a hypertonic solution, the term "hypotonic" is used. A hypertonic solution is a sign of a hypotonic environment, which is more weakly concentrated. This is very significant since solutes and water tend to disperse or flow along gradients.
The combination of two solutions will ultimately lead to one solution. If two solutions are separated by a permeable barrier that only allows water to pass through, the solutions will become isotonic as the water moves between the two solutions.
Thus, In comparison to another solution, a hypertonic solution has a higher solute concentration.
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Which of the following is an example of a non contact force
Answers
Answer:
Gravity, Electrostatic force, Magnetic force
Explanation:
A non-contact force is a force that is applied to an object by another object without contact. Gravity, electrostatic force, and magnetic force all don't need two objects to be touching in order for them to work.
On the other hand, an example of a contact force is friction, because it can only occur if two objects are touching. If you want to tell the difference between a contact and non-contact force, just ask yourself if it can occur if the two objects are not touching. If it can occur while two objects aren't touching, it is non-contact, and if it can't, it is contact.
All the options given describe a force that involves contact except for the force exerted by magnets. Thus, the correct option is C.
Magnetic force is the force exerted by magnets. It can be described as the effect exerted on a charged particle due to the magnetic field of the other particle.
It is a consequence of the electromagnetic force, which is caused due to the movement of electrically charged particles.
Two objects that are oppositely charged will have a magnetic force of attraction, whereas two objects that have the same charge will have a magnetic force of repulsion.
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Your question is incomplete. The full question probably might be:
Which of the following is an example of a non-contact force?
(a) The force exerted by us to lift a bucket
(b) push a stationary car
(c) The force exerted by magnets
(d) Force due to friction
Which of the following is true about victory gardens?
A) They originated during World Wars I and II.
B) They were gardens planted by civilians at their homes.
C) They were meant to decrease pressure on the food supply.
D) They gave civilians a sense that they were helping the war effort.
E) All of the above
Answers
Answer:
E
Explanation:
Because all of those would be true if talking about victory gardens. Have an AWESOME day. :)))
Answer:
E) All of the above