What are the base units the SI units are based on
Answers
Answer:
he units in the revised SI are based completely on seven unchanging quantities or “universal constants,” including the speed of light, the amount of electric charge in an electron, and the Planck constant.
hope it helps
Related Questions
Describe the inner ear and the functions of each
organ/structure.
Answers
The inner ear consists of the cochlea for hearing and the vestibular system for balance. The cochlea converts sound vibrations into electrical signals, while the vestibular system detects head movements and maintains equilibrium.
The inner ear and the functions of each organ
1. Cochlea: The cochlea is the primary organ for hearing. It is shaped like a snail shell and contains the sensory hair cells. Sound waves are transformed into electrical signals by these hair cells, which are then transmitted to the brain for interpretation.
2. Vestibular System: The vestibular system is responsible for maintaining balance and spatial orientation. It includes three semicircular canals and two otolith organs: the utricle and the saccule. The semicircular canals detect rotational movements of the head, while the utricle and saccule sense linear acceleration and gravity.
3. Vestibular Nerve: The vestibular nerve carries signals from the vestibular system to the brain, providing information about balance and spatial orientation.
4. Oval Window and Round Window: These two openings connect the middle ear to the inner ear. The oval window receives sound vibrations from the middle ear, while the round window allows for the dissipation of fluid pressure in the cochlea.
5. Cochlear Nerve: The cochlear nerve transmits auditory information from the cochlea to the brain, enabling us to perceive sound.
Overall, the inner ear plays a vital role in both hearing and balance, allowing us to interact with the auditory environment and maintain a stable body position in space.
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explain the importance of urine analysis in medical diagnosis, giving example
Answers
Answer:
so the doctors can examine the urine to find out if you have any batreria or viruses
Explanation:
Which membrane transport mechanism requires the greatest amount of energy? active transport facilitated diffusion simple diffusion passive transport
Answers
Active transport is the membrane transport mechanism that requires the greatest amount of energy.
Active transport is the movement of molecules against the concentration gradient across a cell membrane from a location of lower concentration to a region of greater concentration. Cellular energy is needed for active transport in order to achieve this movement. Because it enables the cell to move chemicals against the concentration gradient, active transport is significant. Even though a substance's concentration is higher inside a cell than it is outside, cells can still take it in.
Exocytosis and endocytosis, two membrane transport processes that require energy expenditure, are both included in active transport. Simple diffusion, passive transport, and facilitated diffusion are all metabolically inert processes.
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Which energy source input cost of solar panel to generate electric energy
Answers
Answer:
sunlight
Explanation:
match each of the definitions and examples to the form of dominance or epistasis exhibited. you are currently in a sorting module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. dominance codominance incomplete dominance epistasis answer bank
Answers
Dominance – One allele masks the effect of another allele. Two alleles of one gene are responsible for eggplant color, which can be purple and white
Codominance –Two alleles of one gene are responsible for eggplant color ,which can be purple and white patches, purple and white. The heterozygous phenotype has both homozygous phenotypes equally expressed.
Incomplete dominance- Two alleles of one gene are responsible for eggplant color, which can be purple, lavender and white.
Epistasis- One allele masks the effect of another allele.
Dominance occurs when one allele of a gene is completely dominant over another allele. This means that only the dominant allele's trait is expressed in the organism. For example, if a plant has one allele for purple flowers and one allele for white flowers, and the purple allele is dominant, the plant will have purple flowers.
Codominance occurs when both alleles of a gene are equally dominant and both are expressed in the organism. For example, if a cow has one allele for red hair and one allele for white hair, and both alleles are codominant, the cow will have both red and white hair.
Incomplete dominance occurs when neither allele of a gene is completely dominant over the other. This results in a blending of the two traits. For example, if a plant has one allele for red flowers and one allele for white flowers, and neither allele is dominant, the plant will have pink flowers.
Epistasis occurs when one gene affects the expression of another gene. For example, if a gene for black fur is dominant over a gene for brown fur, but another gene determines whether or not the fur will be pigmented at all, the second gene can override the first gene and result in an organism with no pigmentation (white fur).
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Which important property of DNA did Friedrich discover?
Answers
It is found in the nucleus of a cell is important property of DNA did Friedrich Miescher discover.
By Friedrich Miescher, the nuclein enzyme was identified as a significant characteristic of DNA. Friedrich Miescher discovered a crucial characteristic of DNA, which is located in the nucleus of a cell.
His isolate was recognized by Miescher as a novel class of molecule, comparable in significance to proteins. He came to understand that it is an acid with a high phosphorus content and a huge molecular weight.
Its structure is a double helix. Three dimensions make it up. It is located in a cell's nucleus.The protein enzyme nuclein is necessary for preserving the DNA's normal and undamaged structure.Hence, the DNA property in the name of protein nuclein was invented by Friedrich Miescher and its one the most important factor.
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Compare and contrast plant and animal cells. Give 3 ways they are alike and 3 ways they are different.
Answers
Answer:
1. They both have a cell membrane
2. They both contain cytoplasm
3. They both have mitochondria
1. Plant cells have a cell wall where as animal cells don't have a cell wall.
2. Plant cells have larger, less number of vacuoles and animal cells have smaller, plenty vacuoles.
3. Plant cells have chloroplasts while animal cells don't contain them.
Answer:
Plant and animal cells are similar in many ways, but they also have some key differences. Here are three ways they are alike and three ways they are different:
Ways plant and animal cells are alike:
Both plant and animal cells have a cell membrane that surrounds the cell and regulates what goes in and out.
Both types of cells have a nucleus that contains the cell's genetic material.
Both types of cells have mitochondria, which are responsible for producing energy.
Ways plant and animal cells are different:
Plant cells have a cell wall made of cellulose, which provides structure and support, while animal cells do not.
Plant cells have chloroplasts, which are responsible for photosynthesis and contain chlorophyll, while animal cells do not.
Plant cells often have one large central vacuole, which stores water and helps maintain turgor pressure, while animal cells have smaller vacuoles, if any, which are used for storage and transport.
The type of indicator about the placement and number of fire extinguishers would be a(n)A. processB. outcomeC. structureD. regulation
Answers
The type of indicator about the placement and number of fire extinguishers would be a structure indicator.
Structure indicators measure the resources that are put in place to deliver a service or achieve a goal. In this case, the placement and number of fire extinguishers are resources that are put in place to prevent and manage fires in a particular environment. Therefore, they would be considered a structural indicator.
Process indicators, on the other hand, measure the activities or actions that are taken to deliver a service or achieve a goal. Outcome indicators measure the results or effects of the service or goal. Regulations are rules or laws that govern behavior or actions.
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which of the following treatments were carried out in peter marler's classical experiments with white-crowned sparrows?multiple select question.
Answers
Birds were reared in soundproof incubators and a white-crowned sparrow's song was played for them. Birds were reared in soundproof incubators without hearing any songs Thus option (1,2) correct
Peter Marler was a pioneering researcher in the field of animal communication, specifically studying the vocalizations and songs of birds. In his classical experiments with white-crowned sparrows, Marler investigated the learning of bird songs, which is crucial for the development of communication skills in birds. He reared young sparrows in soundproof incubators and exposed them to different auditory stimuli to see how they would learn their species-specific song.
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Full Question : which of the following treatments were carried out in peter marler's classical experiments with white-crowned sparrows?multiple select question.
Birds were reared in soundproof incubators and a white-crowned sparrow's song was played for them.
Birds were reared in soundproof incubators without hearing any songs.
Birds were reared in soundproof incubators and the song of birds of different species were played for them.
Bacteria are important to ecosystems because they act as ____________ to digest dead organic remains and return inorganic nutrients to ____________
Answers
Bacteria are important to ecosystems because they act as decomposers to digest dead organic remains and return inorganic nutrients to producers.
What are decomposers ?
Decomposers are organisms that disintegrate rotting or dead species; they carry out decomposition, a process only some kingdoms, like fungi, are capable of. Decomposers, like herbivores and predators, are heterotrophic, which means that they obtain their energy, carbon, and growth-supporting nutrients from organic substrates.
Microorganisms called decomposers break down complex organic components into less complicated inorganic substances that are absorbed into the soil. These species, such as bacteria and fungi, are examples. These inorganic elements are then recycled by plants.
Without decomposers, the planet would be littered with dead bodies, hence they are regarded as being of utmost importance.
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How might the information gained from this lab pertaining to microbiology be useful to you as a healthcare professional? Gram stain, acid fast stain, differential stains. Simple, direct, and negative stain etc.
Answers
Since it will always be helpful in numerous ways, the information connected to microbiology is quite useful, especially to health care professionals.
What is microbiology?
The scientific study of microorganisms, whether they have one cell, many cells, or are acellular, is known as microbiology (lacking cells). Numerous subfields of microbiology are included, such as virology, bacteriology, protistology, mycology, immunology, and parasitology.
Prokaryotic organisms—all of which are microorganisms—are generally categorised as lacking membrane-bound organelles and include Bacteria and Archaea. Eukaryotic microorganisms—which include fungi and protists—possess membrane-bound organelles. Microscopy, staining, and culture have traditionally been used by microbiologists. However, current technology only allows for the isolation cultivation of less than 1% of the microorganisms found in typical habitats. Molecular biology techniques, such as DNA sequence-based identification, are frequently employed by microbiologists. One such tool is the 16S rRNA gene sequence, which is used to identify bacteria.
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what is the command a user invokes to log off when working at the linux shell?
Answers
The command a user can invoke to log off when working at the Linux shell is "exit."
To log off when working at the Linux shell, you can use the "exit" command or the "logout" command.
1. Open the Linux shell or terminal.
2. To log off, simply type "exit" (without quotes) and press Enter. Alternatively, you can type "logout" (without quotes) and press Enter.
3. The shell session will be closed, and you'll be logged off.
This command will close the current shell and log the user out of the system. Additionally, the user's activity on the shell will be recorded in the system log.
Remember, you can use either the "exit" or "logout" commands to achieve this.
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___ cross-fertilized pea plants that breed true for different forms of a trait, and discovered that the traits of the offspring often appear in ____ patterns.
Answers
Gregor Mendel cross-fertilized pea plants that breed true for different forms of a trait and discovered that the traits of the offspring often appear in predictable patterns.
Gregor Mendel conducted his experiments by selectively breeding pea plants that exhibited contrasting traits such as tall vs. short, smooth vs. wrinkled seeds, yellow vs. green seeds, etc. He then observed the offspring of these crosses and recorded their traits. Through his experiments, Mendel developed the principles of heredity and established the laws of inheritance.
His experiments revealed that the inheritance of traits is determined by genes that are passed down from parents to offspring in a predictable manner. The patterns of inheritance that Mendel observed included dominant and recessive traits, segregation of alleles during gamete formation, and independent assortment of genes.
Mendel's work laid the foundation for modern genetics and his principles are still studied and used today to understand genetic disorders and improve crop production.
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How is the first cell of the human body made?
Answers
MARK ME BRAINLIEST
The first cell of the human body is formed through a process called fertilization. Fertilization occurs when a sperm cell from the male merges with an egg cell from the female, resulting in the formation of a zygote, which is the first cell of the human body.
During sexual reproduction, the sperm cell and the egg cell each contain half of the genetic material required to form a complete human organism. When the sperm and egg meet, they fuse together, resulting in the formation of a single cell with a complete set of genetic material.
After fertilization, the zygote undergoes a series of cell divisions, in which the cell divides into two, then four, then eight, and so on, forming a cluster of cells called a blastocyst. The blastocyst then implants into the wall of the uterus, where it begins to differentiate into the various types of cells that make up the human body, including skin cells, nerve cells, muscle cells, and so on.
The process of fertilization and subsequent development of the human body is complex and involves the coordination of numerous genetic, molecular, and cellular processes.
Minerals are generally
a)solids
b)liquids
c)gases
d)plasmas
Answers
Answer:
A) solids
Explanation:
Most minerals are solids if I am correctamundo(that's a real word, crazy right?)
Have a great day everybody stay safe and be kind. :))
TRUE or FALSE?
All of the carbon in existence is cantinually recycled in the carbon cycle.
False
True
Answers
Answer:
The correct answer is true.
Answer: B. True
Reason:
Hope this helps
answer ill give u a crown
Sickle-cell anemia is an interesting genetic disease. Normal homozygous individuals (SS) have normal blood cells that are easily infected with the malarial parasite. Thus, many of these individuals become very ill from the parasite and many die. Individuals homozygous for the sickle-cell trait (ss) have red blood cells that readily collapse when deoxygenated. Although malaria cannot grow in these red blood cells, individuals often die because of the genetic defect. However, individuals with the heterozygous condition (Ss) have some sickling of red blood cells, but generally not enough to cause mortality. In addition, malaria cannot survive well within these "partially defective" red blood cells. Thus, heterozygotes tend to survive better than either of the homozygous conditions. If 9% of an African population is born with a severe form of sickle-cell anemia (ss),
what percentage of the population will be more resistant to malaria because they are heterozygous (Ss) for the sickle-cell gene?
Answers
The percentage of individuals in the population that are heterozygous (Ss) for the sickle-cell gene will be 18%.
What is population?Population is the total number of people, animals, or other living creatures in a certain area. It is typically measured by counting the number of individuals living within a given territory, and can be used to analyze population growth and density. Population estimates are often used to inform policy and decision making, such as targeted investment in public services, and the use of population data can help to understand economic, social, and health issues.
This is because for each individual with the homozygous recessive genotype (ss), there is another individual with the heterozygous genotype (Ss). Thus, for every 9% of the population with the homozygous recessive genotype (ss), there is an additional 9% with the heterozygous genotype (Ss), making the total percentage of individuals with the heterozygous genotype 18%. This means that 18% of the population will be more resistant to malaria due to their heterozygous condition.
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A ____ is the coding and
is the trait.
Answers
Hey sorry It's Chloe again I ask a lot of questions I'm sorry, But I need facts and topics on birds for a report
Thank you :)
Answers
Answer:
Ravens are great at mimicking human speech and sounds. ...
Ostriches have the largest eyes of any land animal. ...
Cardinals like to cover themselves in ants. ...
Owls devour their prey whole. ...
Some ducks sleep with one eye open. ...
Kiwis are sometimes called "honorary mammals." ...
Most hummingbirds weigh less than a nickel.
Explanation:
Answer:
Facts
Birds have feathers, wings,lay eggs nd are warm blooded
There around 10000 different species of birds worldwide
The Ostrich is the largest Bird in the world
Scientists believe that birds evolved from theropod dinosaurs
Birds have hollow bones which help them fly
The Smallest bird egg belongs to the hummingbird and is the size of a pea
Around 20% of bird species migrate long distances every year
Hummingbirds can fly backwards
Topics:
Feathers
wings
beak
Explanation:
i hope this helps
How does geotheHow does geothermal energy differ from solar energy?
Geothermal energy is cooler and denser than solar energy.
Geothermal energy comes from the internal heat of Earth.
Geothermal energy is transmitted through the atmosphere.
Geothermal energy results from radiation of electromagnetic waves.rmal energy differ from solar energy?
Answers
Answer: B || Geothermal energy comes from the internal heat of Earth.
Explanation:
hope it helped xx :))
Recall the three tenets of the cell theory. Which of these statements can be used to determine that viruses are non-living?
A)
do not contain nuclei.
B)
are not composed of cells.
are not able to reproduce.
D)
do not contain nucleic acid
Answers
Answer:
B. Are not composed of cells
Explanation:
Please help! :)
What is the importance of having the US forest service, the Bureau of Land Managment, the US Fish and Wildlife service, and the National park service?
Answers
Answer:
It protects ecosystems, supervises public access of lands, and manages wilderness areas. It supervises public access of lands, manages wilderness areas, and enforces federal wildlife laws.
Answer: ooooooooooo
Explanation:
true/false. "
In biofiltration of wastewater, air discharge from a treatment
facility is passed through a damp porous membrane that causes
contaminants to dissolve in water and be transformed into harness
products.
"
Answers
False. In biofiltration of wastewater, air discharge from a treatment facility is passed through a damp porous membrane that causes contaminants to dissolve in water and be transformed into harmless products.
This statement is wrong because, in biofiltration of wastewater, air discharge from a treatment facility is passed through a damp porous membrane that causes contaminants to dissolve in water and be transformed into harmless products.
Biofiltration is an air pollution control technology that uses microorganisms to break down pollutants into non-toxic substances. Biofiltration technology can be used for a variety of applications, including odour control, volatile organic compound removal, and hazardous air pollutant reduction. Biofilters, bio-scrubbers, and bioswales are all examples of biofiltration systems.
Biofilters are used in the biofiltration process to remove pollutants from the air. The biofilter is typically a fixed-bed or trickling filter that contains a moist organic media such as compost, soil, or peat. The pollutants are adsorbed onto the organic media's surface, where microorganisms such as bacteria, fungi, and algae break them down into non-toxic substances.
Biofiltration technology is being employed in wastewater treatment as well. In wastewater treatment, biofilters are used to remove contaminants from the water. Biofiltration is an environmentally friendly and cost-effective method of treating wastewater. Biofiltration aids in the removal of pollutants from the water. Biofilters are commonly used in wastewater treatment to remove organic pollutants such as nitrogen, phosphorus, and carbon compounds.
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the first scientist to clearly link a specific microorganism to a specific disease was
A. John Tyndall.
B. Robert Whittaker.
C. Robert Koch.
D. Eukarya
Answers
The first scientist to clearly link a specific microorganism to a specific disease was Robert Koch. Option C is correct.
Koch was a German physician and microbiologist who made significant contributions to the field of medical microbiology. He developed a set of criteria, now known as Koch's postulates, that establish a causal relationship between a microbe and a disease.
In 1876, Koch identified the bacterium responsible for anthrax and in 1882, he isolated and grew the bacterium that causes tuberculosis. These discoveries led to the development of techniques for culturing and isolating bacteria, as well as the development of vaccines and antibiotics. Koch's work laid the foundation for modern medical microbiology and his postulates are still used today to establish the cause of infectious diseases. Option C is correct.
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Describe one environmental impact that results from this element being released into Earths stratosphere
Answers
Answer:
ffvdhgnf
Explanation:
Which of the following should you do if your hypothesis was incorrect based on the results of your experiment?
Change your data so that it supports your hypothesis
Change the dependent variable of the experiment
In your conclusion, use scientific reasoning to explain why your hypothesis may have been incorrect.
Change the independent variable of the experiment
Answers
The step to take if the hypothesis was incorrect based on the results of your experiment is as follows: in your conclusion, use scientific reasoning to explain why your hypothesis may have been incorrect (option C).
What is a hypothesis?Hypothesis is a tentative conjecture explaining an observation, phenomenon or scientific problem that can be tested by further observation, investigation and/or experimentation.
The hypothesis is an educated guess that helps to predict the potential outcome of an experiment.
However, since the hypothesis is testable and falsifiable, the results of the experiment do not always align with the hypothesis.
Therefore, the step to take if the hypothesis was incorrect based on the results of your experiment is as follows: in your conclusion, use scientific reasoning to explain why your hypothesis may have been incorrect.
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which of these organisms are the most closely related? remember, the name of an organism is in the form genus species
Answers
Answer:
Aythya affinis and Aythya marila
Explanation:
Well, I know you didn't give us the questions to pick from, But I think this is what you're looking for.
What advantage do invasive species of plants have over native species?.
Answers
An arrhenius base increases the concentration of hydrogen ions when dissolved in solution. True false.
Answers
False. Bases increase the hydroxide ion concentration
The Arrhenius acid-base theory is a theory that suggests the classification of acid-base compounds based on the type of ion formed when the compound is added to air. A substance when added to water will show acidic or basic properties. This theory can only describe acids and bases in aqueous solutions and cannot classify acids and bases in gaseous or solid state.
According to Arrhenius a base is a compound that increases the concentration of hydroxide ions in an aqueous solution. When a substance is alkaline dissolved in water which has neutral properties, it will produce hydroxide ion OH-. While that can increase the concentration of hydrogen ions when dissolved in solution is an acid.
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Oxygen attracts electrons more strongly than hydrogen does. What kind of bond forms between the two hydrogen atoms and single oxygen atom that form a water molecule? please no links
A.) A Polar Bond
B.) A Metallic Bond
C.) An Ionic Bond
D.) A Hydrogen Bond
Answers
Answer:
A. Polar
Explanation:
It is covalent but more specifically polar bond
Not ionic since it's covalent
not metallic since there are not metals
Hydrogen bonding is bond between hydrogens and not with others (the bonding between other water molecules can be considered hydrogen bonding)