What is the term for broken pieces of rock?A. clastsB. crystalsC. glassD. layers
Answers
The term for broken pieces of rock is clasts. Therefore the correct option is option A.
Clasts are bits of rock that have been broken up into smaller pieces by weathering, erosion, or some other process. Clasts can range in size from minute grains to massive boulders and can be composed of a number of different rock types and minerals.
Clasts are fragments or particles of rock that have been weathered, eroded, or otherwise broken down into smaller pieces.
Geologists must investigate clasts because they can learn about the origins and creation of rocks and other geological phenomena by studying them. Therefore the correct option is option A.
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Related Questions
H1N1 flu is a highly contagious viral infection caused by the influenza A (H1N1) virus. The symptoms of H1N1 flu are listed in the box below. An antiviral agent administered within 48 hours of the appearance of symptoms can reduce the severity of the illness. Screen Why is it important to administer an antiviral agent to an infected person within 48 hours of the appearance of symptoms? The H1N1 virus is transmitted through a vector host, such as a mosquito. The H1N1 virus is dormant in cells. The H1N1 virus does not mutate. The H1N1 virus replicates quickly.
Answers
Answer:
The H1N1 virus replicates quickly.
Explanation:
The H1N1 virus replicates quickly, which is why it is of high importance that an antiviral agent is administrated within the first 48 hours so that the reproduction rate of the virus can be lowered, resulting in an effective treatment against H1N1 flu. In other words, by administrating an antiviral in the first 48 hours, we are helping the body to fight the virus since the antiviral stops the reproduction of it, and we increase the chances of succeeding at it.
Subclavian vein
Which vessel does the tip of a central venous catheter terminate in?
Answers
The tip of a central venous catheter terminates in the superior vena cava.
A central venous catheter (CVC) is a long, thin, flexible tube that is inserted into a vein, usually in the neck, chest, or groin. It is used to give medication, fluids, or nutrition to a patient or to draw blood for laboratory testing.
The superior vena cava is a large vein that carries blood from the upper body, including the head, arms, and chest, back to the heart. The tip of the CVC is positioned in the superior vena cava so that the medications, fluids, or nutrition can be administered directly into the bloodstream, where they can quickly reach the heart and the rest of the body.
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in which one can dietary interventions reduce the severity of the genetic disorder? 0 a. huntington disease 0 b: phenylketonuria cystic= fibrosis cell anemia 0 e: marfan syndrome
Answers
Dietary interventions can reduce the severity of some genetic disorders, including phenylketonuria (PKU) (option b).
PKU is caused by a genetic mutation that impairs the body's ability to metabolize the amino acid phenylalanine. If untreated, high levels of phenylalanine can accumulate in the blood and brain, causing developmental delays, intellectual disability, and other complications.
However, PKU can be managed through a strict low-phenylalanine diet, which involves avoiding foods high in protein and taking a phenylalanine-free medical formula. This diet can prevent the buildup of phenylalanine and promote normal development in children with PKU.
Other genetic disorders, such as Huntington disease, cystic fibrosis, sickle cell anemia, and Marfan syndrome, may benefit from dietary interventions as well, but the effectiveness may vary depending on the specific disorder and the individual's response to treatment.
In some cases, dietary interventions may be used in combination with other treatments, such as medications or gene therapies, to manage the symptoms of genetic disorders.
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Please help :( this is a really complicated question
Answers
Answer:
B. exponential growth.
Explanation:
Since the conditions are ideal and the reproducing organisms increase in numbers with every generation this means that it is exponentially growing. It can't be carrying capacity. It is not a logistic growth. And they don't have competition here so it can't be competition.
The brown anole (Anolis sagrei) is a type of lizard that is native to islands in the Caribbean Sea. These lizards can live in a variety of habitats. Ground-dwelling populations of brown anoles live on lower parts of tree trunks and on the ground. These populations have long legs that help with jumping. Other anole lizard populations live higher up on tree trunks. These populations have short legs that help with perching.
Curly-tailed lizards (Leiocephalus carinatus) are a predator of the brown anole. A group of researchers introduced these predatory lizards into the habitat of certain ground-dwelling brown anoles. To avoid these predators, many individuals from the ground-dwelling populations of brown anoles began to move higher into trees.
Based on the information above, which of the following is the best prediction for what will happen over time to the populations of ground-dwelling brown anoles in areas where curly-tailed lizards were introduced?
Answers
Based on the given information, the best prediction for what will happen over time to the populations of ground-dwelling brown anoles in areas where curly-tailed lizards were introduced is that the population of ground-dwelling brown anoles will decrease.
What is Brown Anole? Brown anole (Anolis sagrei) is a type of lizard that is native to islands in the Caribbean Sea. They can live in a variety of habitats, including trees, bushes, and on the ground. These populations have long legs that help with jumping while other populations of brown anole lizards live higher up on tree trunks, with short legs that help with perching.What are Curly-tailed Lizards?Curly-tailed lizards (Leiocephalus carinatus) are a predator of the brown anole.
A group of researchers introduced these predatory lizards into the habitat of certain ground-dwelling brown anoles. What will happen over time to the populations of ground-dwelling brown anoles in areas where curly-tailed lizards were introduced? Many individuals from the ground-dwelling populations of brown anoles began to move higher into trees to avoid these predators. Thus, the best prediction for what will happen over time to the populations of ground-dwelling brown anoles in areas where curly-tailed lizards were introduced is that the population of ground-dwelling brown anoles will decrease.
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The wings of birds and butterflies have the same function they enable the organisms to fly which statement can be made about the evolutionary relationship between these organisms
A Birds and butterflies have homologous organs, which indicate they share a common ancestor
B birds and butterflies have analogous organs which indicate their wings evolved differently
C Where is the butterflies have Homologous organs because their wings involved from the same ancestral species
D . Birds and butterflies have analogous organs because they belong to the same species
Answers
The statement that can be made about the evolutionary relationship between these organisms is birds and butterflies have analogous organs, which indicates their wings evolved differently. The correct option is B.
What is the analogy?The analogy is having organs with similar functions, but their evolution and structure are totally different. Analogous organs are those organs that have similar functions but have different structures.
Examples are the fin of a whale and dolphin, the wings of birds and butterflies, etc. There is no evolutionary relationship between these organs and the structure is also different, this shows variation.
Thus, the correct option is B. birds and butterflies have analogous organs, which indicate their wings evolved differently.
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evidence from the passage experiments most strongly supports that pharmacological inhibition of fabp increases cellular aea levels via what mechanism?
Answers
Pharmacological inhibition of fatty acid binding protein (FABP) increases cellular levels of anandamide (AEA) by increasing the rate of anandamide biosynthesis. This is because FABP binds and transports fatty acids to their target tissues, which can reduce the availability of fatty acids for anandamide biosynthesis. By inhibiting FABP, more fatty acids can become available for anandamide biosynthesis, thus increasing cellular AEA levels.
This has been demonstrated in a number of experiments. For example, a 2019 study by Dunn et al. found that pharmacological inhibition of FABP increased anandamide levels in human macrophages. In another study, Cinar et al. showed that pharmacological inhibition of FABP increased anandamide levels in mouse liver tissue. Both studies provide evidence that FABP inhibition increases anandamide levels via increased biosynthesis.
In summary, pharmacological inhibition of FABP increases cellular AEA levels by increasing the rate of anandamide biosynthesis. This has been demonstrated in a number of experiments, making it a reliable mechanism for increasing AEA levels.
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Select all statements that describe requirements for speciation. reminder - you should apply the biological speciation concept. select all statements that describe requirements for speciation. reminder - you should apply the biological speciation concept. reduction in gene mixing between populations physical separation evolutionary changes that lead to reproductive barriers loss of the original species as it evolves into two new species
Answers
The biological species concept defines a species as a group of individuals that can interbreed and produce viable offspring, and are reproductively isolated from other groups. Based on this definition, the following requirements for speciation can be identified:
1. Reduction in gene mixing between populations: Speciation requires a reduction in gene flow between populations. This can occur due to physical separation, behavioral differences, or other factors that prevent or reduce interbreeding between individuals.
2.Physical separation: Physical separation of populations can create geographic barriers that prevent interbreeding between individuals.
3.Evolutionary changes that lead to reproductive barriers: Over time, genetic changes and natural selection can lead to the accumulation of reproductive barriers between populations, which can prevent or reduce interbreeding.
4.Loss of the original species as it evolves into two new species: As populations become reproductively isolated and continue to evolve, they can eventually become so distinct that they are considered separate species.
Therefore, speciation requires a reduction in gene mixing, physical separation or some other type of reproductive isolation, and evolutionary changes that lead to the formation of distinct groups that cannot interbreed with one another. This can ultimately result in the loss of the original species as it evolves into two or more new species.
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2. Which atom in the water molecule is negatively charged?
Answers
Answer:
oxygen atom
Explanation:
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. When a neutral molecule has a positive area at one end and a negative area at the other, it is a polar molecule.
Answer:
The oxygen
Hydrogen is positive
Explanation:
Why is spider not classified as an insect ?
Answers
Solution:
Both insects and arachnids are arthropods. However, in the morphology of an insect, there are 6 legs. While in the morphology of an arachnid there are 8 legs. Also, arachnids do not have antennae, their head is not differentiated from the body but is typically divided into two main regions called the cephalothorax (prosoma) and the abdomen (opisthosoma). Spiders belong to the arachnids, therefore a spider is different from an insect. Therefore, a spider cannot be classified as an insect.
three body cells in the human body which is attacked by the plasmodium parasite
Answers
Answer:
Skin, Liver and Blood are infected.
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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Can someone plz help me with this plz I beg u plz help me
Answers
Answer:
Rounded Rocks
Explanation:
what is a negatively charged ion called
Answers
Answer: Negatively charged ions are called anions.
you measure changes in membrane potential in an on-center bipolar cell that is exposed to light in the center of its receptive field. what response would you expect to see?
Answers
The response would be Depolarization due to decreased release of glutamate by the photoreceptor cell. (Option 5)
Bipolar cells can be on or off-center. Bipolar cells get inputs from a bunch of photoreceptor cells that characterize the bipolar cell's responsive field. Glutamate is the neurotransmitter released by all photoreceptor cells. A bipolar cell that responds to glutamate by excitation will be excited when the light is off because glutamate release decreases when exposed to light. Because they are active when light is off in the center of their receptive field, these cells are referred to as off-center bipolar cells.
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(complete question)
You measure changes in membrane potential in an ON-center bipolar cell that is exposed to light in the center of its receptive field. What response would you expect to see?
Select one:
1. An action potential
2. Depolarization due to increased release of glutamate by the photoreceptor cell
3. Hyperpolarization due to decreased release of glutamate by the photoreceptor cell
4. Hyperpolarization due to increased release of glutamate by the photoreceptor cell
5. Depolarization due to decreased release of glutamate by the photoreceptor cell
based an your experiments in the previous section, how does tie ouserved relatve brightnes of a starchanger,
Answers
In your experiments with a star changer, you must have observed the relative brightness which is: directly related to the diameter of the lens.
The diameter of the lens, in turn, is directly proportional to the intensity of light that the lens captures. The relative brightness is also related to the surface area of the lens. The surface area, as we know, increases with the square of the diameter of the lens.
Therefore, if the diameter of the lens is doubled, the surface area will increase fourfold, making the image brighter. As a result, we can say that the brightness of the image observed in a star changer is directly proportional to the diameter of the lens, which is dependent on the surface area of the lens.
A bigger lens will be able to capture more light, resulting in a brighter image. Another way to increase the brightness of the image is to use a lens with a lower focal length. As the focal length of the lens is decreased, the image is magnified more, making it appear brighter.
However, this method comes with a downside. As the focal length decreases, the image's clarity decreases as well. Therefore, a balance between the diameter of the lens and the focal length must be maintained to get a bright and clear image of the star.
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What is true about genes that are controlled by operons or are polycistronic?
Answers
Genes that are controlled by operons or are polycistronic are often found in prokaryotic organisms.
These genes are regulated by a single promoter and operator region, which allows for coordinated expression of multiple genes. This means that the genes within an operon are transcribed together as a single mRNA molecule and are translated into separate proteins. The regulation of operons is often controlled by environmental cues, such as the presence or absence of certain nutrients or chemicals. Overall, genes that are controlled by operons or are polycistronic allow for efficient and coordinated expression of multiple genes in response to changing environmental conditions.
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Where is the carbon taken in by plants during photosynthesis stored?a. the groundb. plant structuresC. the aird. all of the above
Answers
The carbon is taken from the air and is used in photosynthesis to produce glucose (from carbon dioxide and water reacting with the sunlight). This carbon enter the leaves through the stoma and is incorporated into organic compounds within the plant structure (being stored there).
Therefore, the correct answer is b. plant structures.
Someone made the claim "Marine species live in the water. Temperature doesn't matter to them." Give TWO pieces of evidence that would prove this claim false.
Answers
The pieces of evidence that would prove this claim false include:
Temperature affects the presence of dissolved oxygen in waterHigh temperature could lead to decreased activities of animals thereby reducing reproduction.What is Temperature?This is defined as the degree of hotness or coldness of a substance and is influenced by thermal energy.
High temperature will reduce the amount of oxygen in water and also decrease the activities of animals which is why it matters to them.
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Definition of photosynthesis (10 marks)
Answers
Photosynthesis is the biological process by which green plants, algae, and some bacteria convert light energy from the sun into chemical energy in the form of glucose and oxygen.
It is the primary process responsible for generating and maintaining oxygen levels in the Earth's atmosphere, as well as serving as the foundation of most food chains and ecosystems.
During photosynthesis, plants use pigments, primarily chlorophyll, located in specialized structures called chloroplasts, to capture light energy. This energy is then used to convert carbon dioxide (CO2) from the atmosphere and water (H2O) from the soil into glucose (C6H12O6) and oxygen (O2).
This process occurs in two main stages: the light-dependent reactions and the light-independent reactions (also known as the Calvin cycle).
Overall, photosynthesis is a crucial process that sustains life on Earth by producing oxygen and providing the energy-rich molecules necessary for organisms to carry out their metabolic activities.
It represents the fundamental mechanism by which autotrophic organisms convert solar energy into chemical energy, driving the functioning of ecosystems and ultimately supporting all life forms.
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Catabolic pathways that break down complex substances into more usable units are usually regulated by the
Answers
Catabolic pathways are essential for the breakdown of complex molecules into simpler, more usable units. These pathways are typically regulated by various enzymes, hormones, and other molecules, which ensure that the process is well-coordinated and efficient.
For example, catabolic pathways that break down proteins may be regulated by proteases, which break down proteins into smaller peptides and amino acids. Hormones such as insulin and glucagon can also regulate catabolic pathways, helping to control the breakdown of glucose into energy.
Other hormones, such as epinephrine and cortisol, can increase the rate of catabolic processes, allowing cells to quickly access energy during periods of stress or physical activity.
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What would you expect to happen to an mrna strand that binds, with low complementarity, to an mirna strand in the cytoplasm of a cell?.
Answers
In the low complementarity miRNA strands in the cell cytoplasm, the mRNA will express the gene will be low.
microRNA (miRNA) regulates gene expression mainly by binding to messenger RNA (mRNA) in the cell cytoplasm.
Thus, if the level of a particular miRNA is overexpressed (very low level in the cell), the proteins that normally regulate it may be overexpressed (very high level in the cell); when microRNA is overexpressed (very high value), protein is under-expressed (very low value).
miRNA is the name of a family of molecules that help cells control the types and amounts of proteins they make. That is, cells use miRNAs to regulate gene expression. miRNA molecules are found in cells and the bloodstream. Gene expression refers to whether a particular gene produces too much, too little, or a normal amount of protein at a given time.
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Trina's mom bought a new washer and dryer. She also purchased a customer
service contract that has a one-time fee of $139. 95 and a $65. 00 charge for
each customer service call. How many times did Trina's mom call the service
company if she spent less than
Answers
Therefore, Trina's mom called the service company 4 times in case of customer service.
To answer this question, let's assume that Trina's mom spent less than $400 for customer service calls. Now, we need to figure out how many times she called the service company, given the cost of the service contract.Let the number of times Trina's mom called the service company be n.
We know that the service contract has a one-time fee of $139.95. Therefore, the total amount spent on customer service calls is $400 − $139.95 = $260.05.We also know that each customer service call has a charge of $65.00. So, the total amount spent on customer service calls is also $65n.
Therefore, we have the following equation:65n = $260.05Dividing both sides by 65, we get:n = 4
Therefore, Trina's mom called the service company 4 times.
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2.what are the main differences between modern climate changes and the ones that occurred in the past
Answers
Answer:
Today's climate change is different from past climate change in several important ways:
Explanation:
Natural causes are not responsible. None of the natural causes of climate change, including variations in the sun's energy and the Earth's orbit, can fully explain the climate changes we are seeing today.
the visable elements in this picture , plants and a fawn ,indicate
Answers
Explanation:
I'm sorry but I can't see it
HELPPPPP
solar cells can provide the energy to run calculators, outdoor lights and other devices. how does the conversion of light energy into stored electrical energy by solar cells compare to the process of photosynthesis?
Answers
Answer:
How does the conversion of light energy into stored chemical energy by solar cells compare to the process of photosynthesis? ... Photosynthesis uses solar energy to produce oils, glucose, and other complex carbohydrates that are stored as chemical energy.
Explanation:
Photovoltaic cells are an electrical device that converts light energy into electricity. It uses both chemical and physical phenomena.
Photosynthesis is carried by the plant cells where they take the energy from the sun and convert them into chemical energy.
In the process of photosynthesis, the light energy and the food gets converted into glucose, ATP and other complex molecules.Similarly, solar cells utilize light energy and store them in photovoltaic cells in the form of electricity.To learn more about the solar cells follow the link:
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What are reactants in a chemical reaction?(1 point)
A. outputs
B. inputs
C. substances that are formed by reactions
D. substances that speed up reactions
Answers
Answer:
B. inputs
Explanation:
Answer:
inputs
Explanation:
i just did this test and chose inputs and got it correct
Which Newton's law describes magnitude of a force?
A. First law
B. Second law
C. Third law
D.Law of gravitation
Answers
Answer:
B: Second Law
Explanation:
Got it right of Edge 2020
Answer: B
Explanation:
4.in part ii: separation of chloroplast pigments by paper chromatography, a.what is the purpose of paper chromatography in this experiment? b.what is the independent variable in this experiment? c.what is the dependent variable in this experiment?
Answers
Paper chromatography is a technique for sorting compounds according to their numerous characteristics (such as solubility, size, mass, etc.), which enables scientists to differentiate between diverse organic and inorganic components.
How does chromatography work to separate chloroplast pigments?The paper's V-shaped tip is dipped in the chromatography solvent and used as a wick to move the solvent up the paper, separating colours based on how easily they dissolve in it and how much molecular weight they have. The solvent is let to remain on the paper until the topmost pigment band is almost at the top.
In paper chromatography, how are colours separated?As it goes up the paper, the solvent carries the dissolved pigments. Because they are not all equally soluble, the pigments are transported at varying rates.
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Blood cells that attach to types of tumor cells and cells infected with viruses are known as ____.
a. T cells b. cytotoxic T cells c. B cells d. natural killer cells
Answers
The blood cells that attach to types of tumor cells and cells infected with viruses are known as (b) cytotoxic T cells.
These cells play a crucial role in our immune response, as they are specifically designed to identify and target cells that have become abnormal or infected. Once they attach to the abnormal cells, they release chemicals that help to destroy them and prevent the spread of the infection or cancerous growth. Cytotoxic T cells are a type of white blood cell and are produced in the thymus gland. They are an important part of our immune system, as they help to keep us healthy and protected from harmful pathogens and abnormal cells. In summary, cytotoxic T cells are the blood cells responsible for targeting and destroying abnormal cells in the body.
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