In order for induction to occur, what must happen to a neutral object?
It must be magnetized
It must come close to a charged object
It must be rubbed against a hard object
It must be charged by a rubber rod
Answers
Answer:
i think its B
Explanation:
Related Questions
What is the total magnification when using the scanning objective in the compound light microscope if the ocular lens power of 10X?
Answers
The total magnification will be 100 times when using the scanning objective in the compound light microscope if the ocular lens power of 10X.
What is magnification?A comparison of the size of the picture produced by a lens and the size of the object is what is meant by the term "magnification."
Magnification, or "m," for a lens, is the proportion of the image's height to the object's height.
The sum of the magnifications from the two lens systems is the overall magnification.
Thus, as a result, the 10X objective and 10X ocular lenses on the microscope would magnify the object by 10 x 10 or 100 times.
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How would a tree falling from the top most layer most immediately affect the surrounding plants in the other lower layers?.
Answers
Answer:
More sunlight but less space.
Explanation:
The fallen tree would have let in more sunlight as it was blocking sunlight from getting in most of the time. Since the tree fell more sunlight will be able to get in. The only problem would the fact that there will be less space depending on the size of the tree and how it fell over.
using your understanding of genetic variation and evolutionary processes, why does the african human population have more genetic diversity than european or asian populations? choose all that apply.
Answers
African populations exhibit significant levels of genetic diversity and phenotypic variation since modern humans are thought to have originated there and have adapted to a variety of environments.
The variety of various inherited features within a species is referred to as genetic diversity. There would be many people with a wide range of diverse traits in a species with significant genetic diversity. For a population to adapt to changing surroundings, genetic variety is essential. The ability of a population to adjust to changes will be lowered if a highly chosen and low diversity strain—such as fish populations raised for aquaculture—is transplanted into a wild population. One of the best examples of genetic variety is the various breeds of dogs that have been created by selective breeding. There are more than 50,000 different types of rice.
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When streaking a throat culture on blood agar, stabbing the agar plate provides detection for Streptolysin O Bile solubility Streptolysin S DNase activity 100
Answers
When streaking a throat culture on blood agar, stabbing the agar plate provides detection for Streptolysin O. The stabbing method is also called the puncture method, and it helps in determining Streptococcus pyogenes' hemolytic activity.
Streptococcus pyogenes produces two hemolytic toxins, streptolysin O (SLO) and streptolysin S (SLS). These toxins are necessary for establishing an infection.
The throat culture on blood agar plate is used to diagnose a throat infection. The process of inoculation involves streaking and stabbing.
Streaking is performed by moving the swab back and forth over the surface of the agar. It helps in identifying the colonies that have formed on the agar's surface.
On the other hand, stabbing is done by inserting the swab into the agar medium and then withdrawing it. It is useful for detecting the presence of hemolytic toxins.
In case of streptococcal infection, the throat culture is used to detect SLO activity. SLO causes beta-hemolysis, which is visible as a clear zone around the colonies.
By stabbing the agar plate, the SLO remains within the colony, resulting in no hemolysis around the colony. However, if the colonies are streaked on the surface, SLO diffuses out of the colony, causing beta-hemolysis.
Therefore, by stabbing the agar plate, it helps in detecting SLO activity.
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Are r-selected species short lived?
Answers
R-selected species are indeed short-lived.
Species whose populations are governed by their biotic potential are called r-selected species.
Biotic potential is defined to be the maximum reproductive capacity of a species under optimum environmental conditions. Environmental resistance, which includes any factor that holds back the increase in number of the population, restricts full expression of the biotic potential of a species.
The defining characteristic of r-selected species is the production of numerous small offspring, followed by exponential population growth. R-selected species mature quickly (thus require little or even no parental care), require short gestation periods, and are short-lived. Members of this group, unlike K-selected species, are capable of reproduction at a relatively young age, but many offspring die before they reach reproductive age.
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Over the centuries cockroaches have become smaller and flatter, making it easier for them to hide and find their way into home cabinets and pantries. What does this demonstrate?
Geographic isolation plays a role in speciation
frem
The environment is important in selecting adaptations
Artificial selection can result in the development of resistant species
Selective breeding can result in passing favorable traits to the next generation
Answers
Answer:
adaptation
Explanation:
the roaches adapt to their small environment and get smaller due to evolution
It's 58 degrees outside and a meteorologist says a cold front is headed to you area. What should you wear to prepare? *
sandals
rain jacket
snow jacket
hat and gloves
Answers
Hope that helps!
how does motor information from the basal ganglia reach spinal lower motor neurons?
Answers
The motor information from the basal ganglia reaches spinal lower motor neurons by passing through various components of the basal ganglia-thalamocortical circuits that include the thalamus.
What is the basal ganglia?Basal ganglia is a collection of nuclei located at the base of the forebrain and is connected to the midbrain and thalamus. They are responsible for a variety of functions such as motor control, emotions, learning, and cognition. Basal ganglia-thalamocortical circuits have various functions including: Regulating motor and cognitive functions Learning and memory Decision-making Action selection Motor information processing and execution.
How does motor information from the basal ganglia reach spinal lower motor neurons?Motor information from the basal ganglia reaches spinal lower motor neurons by passing through the following basal ganglia-thalamocortical circuits: From the striatum to the globus pallidus internus and substantia nigra pars reticulata to the ventral anterior and ventral lateral thalamic nuclei. To the primary motor cortex or premotor cortex via the thalamus From the cortex to the spinal cord through the corticospinal tract.
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1. Where does the oxygen produced by photosynthesis come from?
a. gas in the atmosphere
b. carbon dioxide
c. glucose
d. water
2. What makes the reactants of photosynthesis and the reactants of cellular respiration similar?(1 point)
a. Both involve ATP molecules.
b. Both involve combinations of carbon, hydrogen, and oxygen.
c. Both involve combinations of glucose, water, and carbon dioxide.
d. Both involve light energy.
3. What is an advantage of using models to represent the carbon cycle?(1 point)
a. predicts conditions that will exist during future events
b. show a complete and detailed account of every event in the cycle
c. can collect data on the amount of carbon in the atmosphere at a specific time
d. can represent an entire system at once
Answers
Answer:
water
Explanation:
Erwin Chargaff examined DNA samples from different organisms to study base pairing. Some data from DNA
samples are shown.
Organism
Adenine
Guanine
Cytosine
Thymine
Sea urchin
32.8%
17.7%
17.3%
32.1%
Salmon
29.7%
20.8%
20.4%
29.1%
Wheat
28.1%
21.8%
22.7%
27.4%
Which conclusion is supported by the data in the table?
А
Each organism contains more cytosine than any other base.
В B
The three organisms have the same sequence of nucleotides.
1-35
Rack
Review/ind
Answers
Answer:
D
Explanation:
The presence of each base is dependent on the size of the organism. So, the correct option is D.
What is Base pairing?A base pair is defined as the basic unit of a double-stranded nucleic acid, consisting of two nucleobases bound to each other by hydrogen bonds, where they form the building blocks of the DNA double helix and the folding of both DNA and RNA contribute to the structure.
The rules of base pairing are:
A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T), bond with double bondC with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G), bond with triple bond.The base pair also depend on the size of each organism.
Thus, the presence of each base is dependent on the size of the organism. So, the correct option is D.
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Your question is incomplete, most probably the complete question is :
Erwin Chargaff examined DNA samples from different
organisms to study base pairing. Some data from DNA
samples are shown.
Which conclusion is supported by the data in the table?
A. Each organism contains more cytosine than any other base.
B The three organisms have the same sequence of nucleotides.
C. All three organisms contain the same types of nitrogen bases.
D. The presence of each base is dependent on the size of the organism.
what possible effect on the ecosystem will take place if ants are removed?
please answer....
Answers
Answer:
When ants are removed their preys population will get bigger.
What major evolutionary changes can be seen in the fossil record for Pakicetus
please answer i'll give brainly
Answers
Answer:
The major evolutionary changes was overtime Pakicetus had an earbone with a feature unique to whales and an ankle bone that linked it to artiodactyls.
Monica has two large dogs and a small dog. The dogs like to play tug-the-rope with each other. Each of these three diagrams shows one way that the dogs play together with the rope. Look at each arrow and the number that goes with it. They show the direction and amount of force each dog exerts on the rope. Look at the MIDDLE diagram, where the large dog and small dog tug on the rope. Which statement correctly explains the amount and direction of the net force acting on the rope, and in which direction will the rope move?
Answers
In the middle diagram, you have a large dog and a small dog tugging on the rope. Let's analyze the net force acting on the rope and the direction it will move.
When considering the forces exerted by each dog, we must take into account both the direction and the amount of force. The large dog exerts a greater force than the small dog due to its size and strength.
The direction of the forces is opposite, as each dog pulls the rope toward itself.
To determine the net force, we subtract the smaller force from the larger force, keeping the direction in mind. Since the large dog exerts more force, the net force will be in the direction of the large dog.
As for the movement of the rope, it will follow the direction of the net force. In this case, the rope will move towards the large dog, as it is pulling with a greater force than the small dog.
In summary, the net force acting on the rope is the difference between the forces exerted by the large and small dog, with the direction favoring the large dog. Consequently, the rope will move in the direction of the large dog.
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What can you conclude about DNA from the idea that it is a cell's "brain” ?
A. it helps think.
B. it controls what cells do
C. it requires a lot of blood to operate properly
D. it is located at the top of the cell
Answers
The conclusion about DNA from the idea that it is a cell's "brain” is that it controls what cells do.
DNA:
DNA, also known as deoxyribonucleic acid, is the nucleic acid responsible for storing the genetic material of the cell. The DNA is found in the nucleus of eukaryotic cells or in the cytoplasm of prokaryotic cells. The DNA molecule produces proteins via the process of gene expression. The proteins, which acts as enzyme and hormone, controls cellular processes. Therefore, the conclusion about DNA from the idea that it is a cell's "brain” is that it controls what cells do.Learn more at: https://brainly.com/question/19365715?referrer=searchResults
what are toes inside of the human body and what do they produce?
Answers
Answer:
Each toe consists of three separate bones and two joints, except for the big toe, which has only two bones — distal and proximal phalanges — and one joint, like the thumb in the hand. The phalanges are made up of the distal phalanges at the tip, middle phalanges, and proximal phalanges, closest to the metatarsals.
Explanation:
I dont know if this is answering your question by I tried!
- Eijiro <3
Does anyone know the answer
Answers
Answer:
rock
Explanation:
i could be wrong but my best answer is rock
which is the "kiss muscle" used for puckering the lips?
Answers
Orbicularis oris
Explanation:
the iss muscle is called Orbicularis oris
looking at your results of the ames test using bacteriological agar medium plates lacking the amino acid histidine, you find that there are many colonies growing on the agar. how do you interpret this result?
Answers
Interpret this result is the chemical being tested is mutagenic.
What is mutagenic?A mutation-causing agent (a change in the DNA of a cell). Mutagens can damage cells and result in diseases like cancer thanks to the DNA mutations they produce. Radiation from x-rays, ultraviolet light, and certain compounds are a few examples of mutagens.
In the field of genetics, a mutagen is a physical or chemical agent that permanently modifies genetic material, typically DNA, in an organism and raises the frequency of mutations above the background level of natural occurrence.
Physical, chemical, or biological mutagens can all be mutagenic agents. Mutagenicity is the property of a chemical that permits the induction of mutations or changes in DNA base pairs.
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Multiple Choice Questions.
1. The leaf is attached to the stem at
(a) Petiole
(b) Node
(c) Spine
(d) Internode
Answers
A deletion mutation causes three consecutive nucleotides to be removed from the DNA code.
Which options describe the possible effects of this mutation?
Answers
The deletion mutation will result in one amino acid being missing while still encoding for other proteins in the proper sequence.
Deletion mutation definition?A deletion alters the DNA sequence of a gene by removing at least one nucleotide. While smaller deletions just remove a single or a small number of nucleotides from a gene, larger deletions can completely erase a gene or a group of surrounding genes. Because of the deleted DNA, the function of the affected protein or proteins may change.
By completely changing the three by three codon structure, an insertion or deletion, sometimes referred to as a frameshift mutation, can change every codon in a particular genetic sequence.
so, than amino acid being missing while still encoding for other proteins in the proper sequence.
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mr. r has beta-thalassemia minor; he is heterozygous for the beta-thalassemia gene, so he only makes half as many beta chains as normal. the red blood cells containing abnormal hemoglobin are destroyed more rapidly, so mr. r suffers from mild anemia (low hematocrit). what are the beta chains, and why are they important in the hemoglobin molecule? choose the best answer. mr. r has beta-thalassemia minor; he is heterozygous for the beta-thalassemia gene, so he only makes half as many beta chains as normal. the red blood cells containing abnormal hemoglobin are destroyed more rapidly, so mr. r suffers from mild anemia (low hematocrit). what are the beta chains, and why are they important in the hemoglobin molecule? choose the best answer. beta chains are the part of the erythrocyte that holds the hemoglobin in position so it can properly receive oxygen. beta chains are the part of the hemoglobin that carries oxygen. all of the protein in hemoglobin is beta chains; therefore, hemoglobin could not exist without them. beta chains are two of the four protein chains that hold heme groups in position and modulate their oxygen-binding properties.
Answers
Beta chains are two of the four protein chains that hold heme groups in position and modulate their oxygen-binding properties
What is Hemoglobin ?
A blood test is necessary to determine how much hemoglobin is present in your blood. Hemoglobin is the main substance found in your red blood cells. Hemoglobin is a protein made up of the substances heme and globin. Heme is made composed of iron and porphyrin, a pigment that gives your blood its red color.
Hemoglobin's essential job is to move oxygen and carbon dioxide through your blood. Hemoglobin is carried around in your body by red blood cells. If your hemoglobin level is too low, you might not be able to give the other cells in your body the oxygen they need to survive.
Four iron atoms are included in each hemoglobin protein, which allows it to carry four oxygen molecules. Anywhere that blood flows, hemoglobin connects to red blood cells and distributes oxygen throughout the body. The billions of cells that make up the body each require oxygen to maintain and repair themselves.
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a physiological change in the aging process that is associated with cerebral atrophy produces extra space within the cranial vault, allowing the veins to stretch and tear more easily, which can lead to which irregularity? group of answer choices
Answers
Cerebral atrophy is assosciated with the loss of cells of the brain , leading to focal and generalized atrophy.
What is atrophy and what are its kind?Atrophy of any part of human body means loss of cells , cerebral atrophy means loss of cells of brain.There are two kind of atrophy namely focal and generalized atrophy.With aging as mentioned in the question the cerebral atrophy patients faces more difficulties and more complex life as the cells starts shallowing off and leads to cranial vault.This is a known thing that as we all age we are losing some amount of cells everyday , everyminute but with brain or cerbral atrophy the process is fasten.Hence atrophy is the physiological change in the aging process.To know more about atrophy visit:
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conditions that activate the parasympathetic nervous system: question 142 options: a) a. slow the heart down and increase contractility. b) speed the heart up and decrease contractility c) slow the heart down and decrease contractility d) speed the heart up and increase contractility.
Answers
Your answer: Conditions that activate the parasympathetic nervous system (a) slow the heart down and increase contractility.
The correct answer to the question is: c) slow the heart down and decrease contractility. The parasympathetic nervous system is responsible for promoting rest and relaxation in the body. When activated, it slows down heart rate and decreases contractility of the heart muscle, leading to a decrease in the strength of each heartbeat. This allows the body to conserve energy and focus on other functions, such as digestion and healing.
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Which type of electromagnetic wave has the shortest wavelength?
O A. Ultraviolet
O B. Visible light
O C. Radio
O D. Gamma rays
SUBMIT
Answers
This is a protist. What do you know about the organism? Choose ALL that apply.
es )
A)
The protist is nonliving.
B)
The protist is eukaryotic.
C)
The protist is unicellular.
D)
The protist is multicellular.
E)
The protist is a living organism.
Answers
the protist is eukaryotic
the protist is unicellular
the protist is a living organism
The protist is eukaryotic, unicellular and living organism.
What are the characteristic features of kingdom protist?The kingdom Protista kingdom are the living beings in nature includes all those unicellular and multicellular eukaryotic organisms with intermediate between plants and animals.
They are eukaryotic organisms lack differentiated vegetative tissues, except in those structures responsible for the reproduction process.
The protists is highly variable in shape, it can be from microscopic unicellular forms to multicellular organisms, found in variety of places like soil, fresh water, ocean floor, decomposing organic matter, etc.
The protists exhibit autotrophic and heterotrophic mode of nutrition, and the other are through phagotrophic, saprobiotic or parasitic strategies.
The kingdom Protista shows a greater mode of locomotion, by using flagella, cilia and pseudopods, Many organisms are free-living, where as others have symbiotic relationships like mutualistic, commensal, or parasitic relationship.
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Which processes are involved in metabolism?
a. synthesis, growth, repair
b. decomposition, energy release
c. reversible reactions, equilibrium
d. synthesis and decomposition
e .exchange reactions, control of pH
f. all of the above
PLZ HElP!!
Answers
HELPPPPPPPPPPPPPPPPP
Answers
Answer:
wish i could friend, wish i could
Explanation:
sorry, have a good day and life lol
Answer:
Q1 ans : the major salivary glands are the largest and most important salivary glands. they produce most of the saliva your mouth there are three pair of major salivary glands: the parotid gland the Submadibular glands and and The sublinguals glands. Q2 ans : infections of the skin around the mouth mucous membranes inside the mouth gums and turn the common causes of mouth white patches.Q3ans : keep your mouth moise and comfortable .helps keep dentures securely in place. fight germs in your mouth and prevent bad breath.In your own words, describe what happens in the animation. Be sure to mention the water molecules and what processes are taking place in each part of the water cycle model
Answers
In the animation, we see the water cycle in action. The water cycle is the process by which water circulates between the Earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.
Once the water reaches the Earth's surface, it begins to flow into streams and rivers, which is known as runoff. The water then makes its way back to the ocean, where the cycle begins again. Throughout the animation, we see the water molecules constantly moving and changing form as they go through the different processes of the water cycle.
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Which of the following is NOT a risk factor for multiple sclerosis?
Answers
Answer:
c is correct
Explanation:
What is the biological impact of minimum catch sizes on a population of fish?
a.
The population comes to be dominated by smaller, slower-growing individuals.
b.
Older, less productive adults are removed, improving the population’s health.
c.
It applies a selective pressure for larger, faster growing fish.
d.
The fish in the population produce more and healthier eggs to compensate.
Answers
Answer:
the population comes to be dominated by smaller, slower-growing individuals
Explanation:
The biological impact of minimum catch sizes on a population of fish The population comes to be dominated by smaller, slower-growing individuals. Therefore, option "A" is correct.
What are the factors that affect the population size of fish?Because of the way their mouths are built and the types of skeletons they have, they are divided into these groups. There are jawless fishes, cartilaginous fishes, and hard fishes. Every one of the three kinds is ectotherms.
In mountainous forest streams, environmental conditions like water temperature, pH, and dissolved oxygen change with elevation over short distances, affecting the distribution of fish species and biodiversity.
Therefore, the fishery gets affected by these factors and there is a loss in production.
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