After getting the specimen into focus with the 4X objective and properly setting the interpupillary distance. Which one of the following best describes how to set Kohler illumination? Three steps are listed below. Correctly select the choice that corresponds to the correct order of steps when setting Kohler illumination. 1 Adjust the aperture diaphragm 2 Open the field diaphragm until it just fills the field of view 3 Close down the field diaphragm and focus the condenser 1→3→22→1→31→2→33→1→23→2→12→3→1
Answers
Kohler illumination is the proper adjustment of the light source in a microscope. After getting the specimen into focus with the 4X objective and properly setting the interpupillary distance, the following order of steps should be followed to set Kohler illumination: 2 → 3 → 1.The three steps of Kohler illumination are listed below:
Step 1: Open the field diaphragm until it just fills the field of view. Doing so helps to ensure that the field of view has an even illumination. This should be done with the lowest power objective lens.
Step 2: Close down the field diaphragm and focus the condenser. Using a medium-power objective lens (10X or 20X), close the field diaphragm, then focus the substage condenser on the specimen. Adjust the height of the condenser until the edges of the specimen are in sharp focus.
Step 3: Adjust the aperture diaphragm. The aperture diaphragm is found on the substage condenser and controls the amount of light that enters the lens system. For optimal resolution, the diaphragm should be adjusted so that it is just outside of the field of view. In this way, the light passing through the specimen is concentrated at the center of the lens system.
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Related Questions
he x-ray film shows a fracture where one side of the cortex is intact and flexed and the other side has signs of interruption (fracture). Which term best describes this type of fracture
Answers
Answer:
This is refers to as Greenstick fracture.
Explanation:
This is the type of fracture common in children less than 10 years, in which there is incomplete fracture of the bone,with ,but the cortex remain flexed.It is called green stick because it is analogous to the act of breaking a branch of a tree, which is not completely broken, from the main branch.
It is usually to due to falls,and common in kids because of their soft bones which is not completely formed and therefore will not break off completely like that of adults when fractured, but only from one side only.
What causes temperature fluctuations in intertidal habitats? And the subject is marine biology/science but that wasn't provided
Answers
please answerrrrrrrrrr
Answers
In Figure 7-2, which picture shows weathering that involves carbonic acid: A, B, or C?
Answers
Answer: C
Explanation: Carbonic acid is the culprit when it comes to the carbonation type of chemical weathering. As rain goes through the air and into the ground, it grabs carbon dioxide, creating carbonic acid. This weak acid reacts with the calcium carbonate in stones when it seeps into the cracks.
what are the major parts of most prokaryotic cells?
Answers
Answer:
a plasma membrane: an outer covering that separates the cell's interior from its surrounding environment. cytoplasm: a jelly-like cytosol within the cell in which other cellular components are found. DNA: the genetic material of the cell. ribosomes: where protein synthesis occurs.
In seed-eating finches in the Galapagos Islands, birds with large beaks are adapted to eat seeds with hard shells,
while birds with small beaks are adapted to eat seeds with soft shells.
If all the seeds in the Galapagos Islands were to develop softer shells as a result of long-term changes in the Earth's
climate, which of the following would be the MOST likely effect on the seed-eating finches?
Elimination Tool
Select one answer
A
Birds with large beaks would develop even larger beaks, while birds with small beaks would develop
even smaller beaks over many generations.
B.
Average beak size in the finches will decrease over many generations.
С
Birds with large beaks would develop smaller beaks, while birds with small beaks would develop
larger beaks over many generations.
D
No selection would operate because the finch populations on the Galapagos Islands meet all the
criteria for Hardy-Weinberg equilibrium.
Answers
Answer:
The answer might be D
Explanation:
The answer could be D because birds with larger beaks should be capable of eating soft shell seeds, as well as hard shell seeds. So natural selection would not occur because the finches with large beaks would not die as a result of not eating soft shell seeds. The finches with large beaks should be able to reproduce offspring with the same trait. And so should the finches with small beaks.
Average beak size in the finches will decrease over many generations is the most likely effect on the seed-eating finches.Therefore, the correct option is B.
What are finches?Finches are small to medium-sized passerine birds in the family Fringillidae. They are found throughout the world, but are most diverse in the tropics. Finches are known for their unique beak shape and size, which is specialized for feeding on a variety of different foods such as seeds, fruits, insects, and nectar.
The most likely effect on the seed-eating finches if all the seeds in the Galápagos Islands were to develop softer shells would be that birds with small beaks would have a selective advantage.
Therefore, the population of birds with smaller beaks would likely increase over time, while the population of birds with larger beaks would decrease.Hence, the correct option is B.
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What do genital warts look like when they first appear.
Answers
Answer:
they look like small flesh-colored, pink, or red growths in or around the s3x organs. these warts can appear in clusters of three or four or they may be very tiny and hard to see. they have been described to be similar to the small parts of a cauliflower. they may grow and spread rapidly
Explanation:
PLZZ HELP
Phosphorus is mainly found in the environment stored in
A. the atmosphere
OB. legumes
C. mineral deposits
D. denitrifying bacteria
Answers
Answers: I think it’s a or c
Explanation:
Why is it important to scientists that mitochondria and chloroplasts have similar characteristics as bacteria?
Answers
The _____ rule allows us to calculate the likelihood of a double crossover if we know the individual likelihood of each single crossover.
Answers
The product rule allows us to calculate the likelihood of a double crossover if we know the individual likelihood of each single crossover.
The product rule states that the probability of two independent events occurring together is the product of their individual probabilities. In the context of genetic crosses, the product rule can be used to calculate the probability of a double crossover (two crossovers occurring between two genetic markers) if we know the probabilities of the two single crossovers. Specifically, the probability of a double crossover is equal to the product of the probabilities of the two single crossovers.
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ultimately, the male inclination to acquire wealth, power and fame stems from
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The male inclination to acquire wealth, power, and fame is influenced by a variety of factors, including societal norms, evolutionary biology, and individual motivations.
It's important to note that not all men have the same inclinations, and these motivations can vary widely among individuals. Here are some potential factors that contribute to this inclination:
Societal Expectations: Many societies have traditionally placed a higher value on male success, particularly in terms of providing for their families or being seen as a leader. Cultural norms and expectations can influence men to strive for wealth, power, and fame as a means of fulfilling these expectations.
Evolutionary Biology: Evolutionary psychology suggests that there may be inherent differences in male and female mating strategies, driven by reproductive success. In some societies, the acquisition of resources and status can increase a man's desirability as a mate, potentially leading to greater reproductive success. These evolutionary factors may play a role in driving some men to seek wealth, power, and fame.
Social Competition: Men, like women, are social beings who engage in competition to establish status and gain resources. Acquiring wealth, power, and fame can be viewed as a way to gain social status and compete successfully within their social circles or communities.
Personal Ambition and Motivation: Some men may have personal aspirations and goals that align with the pursuit of wealth, power, and fame. These motivations can be influenced by a desire for personal fulfillment, self-esteem, or a sense of accomplishment. Personal ambition can drive individuals to strive for success and recognition in various domains.
Cultural Influences: Media, advertising, and popular culture often portray wealth, power, and fame as desirable and glamorous. These influences can shape individuals' aspirations and reinforce the belief that acquiring these attributes will lead to happiness, respect, and admiration.
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Explain chromosomes, chromatin, sister chromatids. What is the difference between them and how does one form the next
Answers
Answer:
Chromatin is a long chain of DNA. Chromosomes is rolled up DNA when it is going through cell division. Sister chromatids are the branches of the same chromosome.
Explanation:
T/F: once "closed" or ossified, growth in length no longer occurs at an epiphyseal plate.
Answers
True, once the epiphyseal plate is closed or ossified, growth in length no longer occurs at the epiphyseal plate.
Once an epiphyseal plate, also known as a growth plate, is closed or ossified, growth in length of the bone no longer occurs at that particular plate. The epiphyseal plate is a region of growing tissue located at the ends of long bones in children and adolescents.
It is responsible for bone elongation as new bone is formed on one side of the plate while cartilage is replaced by bone on the other side. However, as a person reaches skeletal maturity, the epiphyseal plates gradually close and are replaced by solid bone, marking the end of longitudinal bone growth in that specific plate.
So, the statement is true.
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while stegosaurs had brains that were overall very small, the front part of their brains were enlarged compared to the rest, meaning the likely had:
Answers
The stegosaurs had brains that were overall very small, the front part of their brains was enlarged compared to the rest, meaning the likely had: a very good sense of smell.
Stegosauria is a set of herbivorous ornithischian dinosaurs that lived in the course of the Jurassic and early Cretaceous intervals. Stegosaurian fossils had been found broadly speaking in the Northern Hemisphere, predominantly in what's now North the USA, Europe, Africa, South the USA, and Asia.
Among the closest spouse and children to Stegosaurus are Wuerhosaurus from China and Kentrosaurus from east Africa. Thyreophorans represent the armored dinosaurs. There are characterized by means of the presence of osteoderms (armor plates) in their pores and skin.
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What is the difference between inorganic and organic compounds? A. Organic compounds are produced naturally and inorganic compounds are human-made. B.Organic compounds are beneficial to the environment and inorganic compounds are not. C.Organic compounds contain ionic bonds and inorganic compounds contain covalent bonds. D. Organic compounds contain carbon and inorganic compounds do not.
Answers
D. Organic compounds contain carbon and inorganic compounds do not.
Organic compounds contain carbon and inorganic compounds do not. The correct option is D.
What is organic compounds?Any of a vast group of chemical compounds known as organic compounds contain one or more carbon atoms that are covalently connected to atoms of other elements, most frequently hydrogen, oxygen, or nitrogen.
Carbides, carbonates, and cyanides are among the few carbon-containing substances that aren't categorised as organic.
Covalently bound carbon and hydrogen, as well as frequently other elements, are found in organic molecules.
An inorganic compound in chemistry is often one that does not contain carbon-hydrogen bonds, i.e., one that is not an organic compound.
Inorganic chemistry is a branch of chemistry that focuses on the study of inorganic substances.
Thus, the correct option is D.
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3. How many membranes does the
nucleus have?
Answers
Answer:
2 membrans
Explanation:
fibrous connective tissue that is continuous with the tendon
Answers
The fibrous connective tissue that is continuous with the tendon is known as the periosteum.
The periosteum is a dense layer of vascularized connective tissue that covers the surface of bones, except for areas covered by articular cartilage. Tendons, as well as other ligaments, attach to bones through the periosteum, which is made up of two layers. The fibrous layer, which is composed mostly of type I collagen fibers, is the outer layer. The periosteum also contains osteoblasts, osteoclasts, and chondroblasts. The inner cambium layer is the second layer. The periosteum is essential for bone growth, healing, and nutrition because it is the site of attachment for muscles and tendons.Connective tissue that is composed of bundles of collagen fibers that are arranged in a parallel fashion is known as fibrous connective tissue. In the body, it is found in ligaments, tendons, and fascia, and it serves as a mechanical support structure. Collagen fibers, which are highly tensile, are the primary component of fibrous connective tissue. It has very little blood supply, which makes it more difficult to heal when injured.Learn more about Tendons: https://brainly.com/question/139369
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The biosynthesis of triacylglycerols from acetyl-coa occurs mainly.
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The biosynthesis of triacylglycerols from acetyl-CoA occurs mainly through a process called de novo lipogenesis. This process takes place primarily in the liver and adipose tissue.
During de novo lipogenesis, acetyl-CoA molecules are converted into malonyl-CoA, which then combines with acetyl-CoA to form fatty acids. These fatty acids are then further modified and elongated to produce triacylglycerols. The process of biosynthesis of triacylglycerols from acetyl-CoA is regulated by various factors such as insulin, glucose, and dietary intake.
Excess consumption of carbohydrates and sugars can lead to an increase in the production of triacylglycerols, which can lead to obesity and other metabolic disorders. On the other hand, a diet rich in healthy fats can help regulate the biosynthesis of triacylglycerols and maintain overall metabolic health. In summary, the biosynthesis of triacylglycerols from acetyl-CoA is a complex process that is influenced by various factors and plays a crucial role in maintaining metabolic balance in the body.
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Which of the following sequences could be RNA?
A
AUCUGA
B
ATCTGA
C
GATTACA
D
AAATIT
Answers
Answer:
A
Explanation:
RNA contains U which DNA does not.
The sequence of the RNA will be AUCUGA. The correct option is A.
What is RNA?All biological cells contain ribonucleic acid (RNA), a crucial biological macromolecule.
It plays a major role in the production of proteins by acting as a messenger for DNA, which in turn carries the genetic instructions necessary for the growth and maintenance of life.
RNA performs a wide range of tasks, including regulating gene activity during development, cellular differentiation, and changing environmental conditions.
It also translates genetic information into the molecular machineries and cell structures.
Adenine (A), cytosine (C), guanine (G), and thymine are the bases that are employed in DNA (T).
Thymine is replaced by the nucleotide uracil (U) in RNA. Long strands of nucleotides make up the polymeric DNA and RNA molecules.
Thus, the correct option is A.
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The cells of a puppy and the cells of a dog are the same size. Why is a dog larger?
Answers
Answer:
The Dog is has much more cells because it's bigger.
Explanation:
when a puppy grows up to be a dog, it gains more cells because it GROWS up and becomes bigger than the puppy's original size.
information taken from an existing classified source and stated verbatim
Answers
Information taken directly from an existing classified source and stated verbatim in a new or different document is an example of Restating.
Restating is the direct one-line answer. Restating refers to reproducing information, word for word, from a source without altering or paraphrasing it. In the context of classified information, restating involves directly copying the sensitive content without any modifications or changes. This action is generally unauthorized and can be a breach of security protocols, confidentiality agreements, or legal requirements.
It is important to handle classified information responsibly and adhere to the rules and regulations governing its use. Instead of restating classified information, it is advisable to seek authorized access to such sources or consult official channels to obtain the necessary clearance and permissions for utilizing classified information appropriately.
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The complete question is:
Information taken directly from an existing classified source and stated verbatim in a new or different document is an example of ______.
RestatingExtractingGeneratingParaphrasingWhat does currency mean? What does the information cycle have to do with currency?
Answers
Currency refers to the system of money that a country or region uses as a medium of exchange for goods and services. It can come in the form of coins, paper bills, or digital units of value. Currency is an essential aspect of modern economies and allows individuals and businesses to conduct transactions with one another.
It also plays a crucial role in international trade and exchange rates. The information cycle has a significant impact on currency because it affects the economic and political conditions of countries, which can cause fluctuations in exchange rates and impact the value of different currencies.
The flow of information about a country's economic health, political stability, and international relations is critical to understanding its currency's value and how it interacts with other currencies around the world. Therefore, keeping up with the information cycle is essential for investors, traders, and policymakers who want to make informed decisions about currency markets.
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the reaction velocity of a biological enzyme is highest at neutral ph. which of these models shows this fact?
Answers
Enzymes are essential for biological reactions in living organisms. An enzyme is a biological catalyst that speeds up chemical reactions. pH is a critical factor that affects enzyme activity. Enzymes have an optimal pH level, which determines the rate of reaction.
Most enzymes are active at a neutral pH of 7.0.A graph of reaction velocity against pH would show the optimal pH value of the enzyme. The models that can show this fact are bell curves (sigmoid curves) or graphs that have an apex indicating the optimal pH level for enzyme activity. The graph would show the relationship between pH and enzyme activity. The rate of reaction would be at its highest at the optimal pH level. Any deviation from the optimal pH level would cause a decline in the rate of the reaction.
Therefore, a graph would help to identify the optimum pH range for an enzyme, and consequently, enable scientists to manipulate the enzyme's activity by modifying its pH levels. Overall, the graph would aid in understanding the enzyme's characteristics and optimizing its activity. Answer: A bell curve or sigmoid curve would be the best model to show this fact.
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How do a chromosome, a gene, and an allele differ? How are they similar?
Answers
Answer: A gene is a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein. A chromosome is a long DNA molecule with part or all of the genetic material of an organism. A allele is one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Explanation:
Homeostasis is the ability of a system or living organism to adjust its __________ environment in order to maintain __________.
Answers
Answer: Homeostasis is the ability of a system or living organism to adjust its internal environment in order to maintain equilibrium.
Explanation: Homeostasis is an automatic interaction by which organic frameworks keep up with dependability while acclimating to changing outer circumstances. Homeostasis is the propensity to oppose change to keep a stable, somewhat steady inward climate.
Creature organs and organ frameworks continually conform to inward and outside changes through a cycle called homeostasis ("consistent state"). These progressions may be in the degree of glucose or calcium in blood or in outer temperatures. Homeostasis means to keep up with dynamic harmony in the body. It is dynamic since it is continually acclimating to the progressions that the body's frameworks experience. It is harmony since body capabilities are kept inside unambiguous reaches. Indeed, even a creature that is evidently dormant is keeping up with this homeostatic balance.
what is the effect of soil salinization on crops?
Answers
Answer:
Salinity affects production in crops, pastures and trees by interfering with nitrogen uptake, reducing growth and stopping plant reproduction. Some ions (particularly chloride) are toxic to plants and as the concentration of these ions increases, the plant is poisoned and dies.
Explanation:
Brainliest please?
During cellular respiration, your body breaks down glucose and releases
a.ATP.
b.oxygen.
c.hydrogen.
d.chlorophyll
Answers
a.ATP
antibodies are made up of which of the following? group of answer choices carbohydrates glycoproteins lipids nucleic acids
Answers
Antibodies, also known as immunoglobulins, are made up of glycoproteins.
They are produced by plasma cells, a type of B cell, in response to the presence of foreign substances or antigens in the body. Antibodies play a crucial role in the immune system's defense against infection and disease by recognizing and binding to specific antigens, which are typically proteins or other macromolecules on the surface of pathogens or foreign cells. The structure of antibodies consists of four polypeptide chains: two identical heavy chains and two identical light chains, held together by disulfide bonds.
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Full Question: antibodies are made up of which of the following? group of answer choices
carbohydrates glycoproteinslipids nucleic acids. describe the consistency and color of the plasma you observed in the laboratory
Answers
The consistency of the plasma observed in the laboratory was a clear, slightly yellowish fluid. Its consistency was similar to that of water, meaning it had a fluid and runny texture. The color of plasma can vary slightly depending on the levels of bilirubin and carotene present in the body, but it typically appears pale yellow.
Plasma is an essential component of blood that makes up approximately 55% of the total blood volume. It contains various proteins, hormones, nutrients, electrolytes, and waste products that are essential for maintaining bodily functions. The consistency and color of plasma are important indicators of a person's health status and can help doctors diagnose certain diseases or conditions. The consistency of plasma is fluid and runny, while its color is typically a pale yellow hue. Understanding the characteristics of plasma is essential for medical professionals to make accurate diagnoses and provide appropriate treatment to their patients.
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explain why raising the temperature in which a cell lives might slow one of the cell’s enzyme-catalyzed chemical reactions.
Answers
Due to the enzyme's denaturation at higher temperatures, a cell's enzyme-catalyzed chemical processes may be slowed down. Proteins called enzymes help biological processes.
By reducing the activation energy needed for the reaction to take place. The three-dimensional structure of the enzyme, which is supported by weak chemical interactions like hydrogen bonds and hydrophobic interactions, determines the shape of the active site, which is essential to the enzyme's activity. As a result of the molecules' increased kinetic energy at high temperature, the enzyme's weak chemical connections that support its three-dimensional structure may be broken. The enzyme may get altered or unfold (denature) as a result of this disturbance, making the active site inactive and preventing the enzyme from attaching to its substrate.
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