When testing for starch within the potato and onion, the test tube containing potato turned purple while the test tube containing onion turned orange. This reaction can be explained by the fact that the amount of starch in the potato is higher than that in the onion.
As per the observation made, the test tube containing potato turned purple while the test tube containing onion turned orange. This shows that the potato contains a higher amount of starch than the onion. When iodine comes in contact with a starch molecule, it forms a blue-black complex.
As per the given observation, the potato had a higher starch content than the onion; hence it turned purple as it had more starch that reacted with the iodine. The onion, on the other hand, had less starch content, and this is why the reaction between the iodine and the onion was less intense, and it turned orange.
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A number of chemical treatments cause microtubules to fall apart. Colchicine is one such drug. What would happen if a dividing cell was treated with colchicine?.
A number of chemical treatments cause microtubules to fall apart. Colchicine is one such drug. If a dividing cell was treated with colchicine, chromosomes would not separate.
Microtubules can be defined as structures that are actively present in the cytoskeleton of eukaryotic cells.
The microtubules are a major part of the cell division process as they are involved in the formation of the mitotic spindle. This mitotic spindle ensures that the sister chromosomes are separated at the time of cell division. As a result of this segregation, there is an equal division of chromosomes among the daughter cells.
Hence, if a dividing cell was treated with colchicine, then the microtubules will fall apart. As a result of this, the mitotic spindle will not form and chromosomes will not separate.
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I NEED HELP QUICK I HAVE OTHER WORK TO DO AND THIS IS MY FINAL GRADE Thanks Match each layer of the atmosphere with the appropriate description. (1 point)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
troposphere
stratosphere
exosphere
thermosphere
living things are protected from dangerous radiation
solar activity such as auroras occurs
the atmosphere is protected
almost all the weather occurs
Matching each layer of the atmosphere with the appropriate description:
Troposphere: Almost all the weather occurs
Stratosphere: The atmosphere is protected
Exosphere: Living things are protected from dangerous radiation
Thermosphere: Solar activity such as auroras occur
The troposphere is the lowest layer of the atmosphere, extending from the Earth's surface up to an altitude of about 7-20 kilometers. It is where weather phenomena, such as clouds, rain, and storms, take place. The troposphere is characterized by decreasing temperature with increasing altitude.
The stratosphere is located above the troposphere, extending from about 20 to 50 kilometers above the Earth's surface. In this layer, the concentration of ozone is higher, forming the ozone layer. The ozone layer plays a crucial role in absorbing harmful ultraviolet (UV) radiation from the Sun, protecting life on Earth from the damaging effects of excessive UV radiation.
The exosphere is the outermost layer of the atmosphere, starting around 500 kilometers above the Earth's surface. It is a transitional region between Earth's atmosphere and outer space. In the exosphere, the atmosphere becomes extremely thin, consisting mainly of individual gas molecules and ions. This layer provides protection to living things from dangerous radiation, as the high altitude and low density of particles limit the absorption of harmful radiation.
The thermosphere is located above the mesosphere and extends up to about 600 kilometers or higher. It is characterized by high temperatures, reaching several thousand degrees Celsius, although the density of particles is very low. The thermosphere is where solar activity, such as the occurrence of auroras (northern and southern lights), takes place. The highly energetic particles from the Sun interact with the gases in this layer, resulting in the beautiful displays of auroras.
It's important to note that the layers of the atmosphere are not sharply defined boundaries but gradually transition into one another. The atmosphere is a complex system with interactions between the layers and various processes occurring throughout. Understanding the different layers and their characteristics helps us comprehend the dynamic nature of our atmosphere and its role in supporting life on Earth.
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which atmospheric gas plays the biggest role in weather?
a. oxygen
b. carbon dioxide
c. methane
d. water vapor
how many types of mutations are there
Answer:
Depending on changes, that occur with DNA, all types of DNA mutations can be divided into two main groups:
gene mutation;
chromosomal mutation.
Explanation:
Alligators, turtles, and fish living together in a river
form this (what)
Alligators, turtles, and fish living together in a river form is what is referred to as the aquatic community.
What is a Community?This is defined as the group of people or organisms living together in a particular area and usually have characteristics which are common to one another.
Alligators, turtles, and fish all live in the river form which is referred to as aquatic community. This is because they are found in water and have similar features which makes them well suited for living in this type of area thereby boosting their survival under different types of conditions.
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a man with normal vision who is dwarf due to achondroplasia has children with a woman with colorblindness. what proprotion of their sons are expected to be color blind and of nromal height
The sons of this couple will have a 25% chance of being colorblind and a 50% chance of having achondroplasia. However, due to the mother’s lack of achondroplasia, they will most likely be of normal height.
Achondroplasia is an autosomal dominant genetic condition caused by a mutation in the FGFR3 gene. This gene is responsible for controlling the growth of bones during development. People who have this condition have short stature, an enlarged head, and a flattened nose bridge. Achondroplasia is a dominant gene, which means that any child of the father with achondroplasia will have a 50% chance of also having achondroplasia.
Colorblindness is an autosomal recessive genetic condition, meaning that both parents must carry the gene in order for the child to be affected. The mother in this case has colorblindness, and the father is a carrier of the gene. Therefore, any sons of the couple will have a 25% chance of being colorblind.
In terms of the height of the sons, it is likely that they will be of normal height. The father’s achondroplasia is a dominant gene and thus if a son inherited the gene, he would have a 50% chance of having achondroplasia, and a 50% chance of having normal height. Since the mother does not have achondroplasia, any sons will not inherit achondroplasia from her. Therefore, the sons are expected to be of normal height.
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name the soil with the highest percolation rate
Answer:
Sandy soil
Explanation:
What morphologic features or characteristics can be used to identify the following:
• adult dipteran flies
• larval dipterans (maggots)
• ticks
• sarcoptiform mites
The morphologic features or characteristics can be used to identify: adult dipteran flies, larval dipterans (maggots), ticks and sarcoptiform mites
Morphologic features to identify the mentioned organisms are:
1. Adult dipteran flies: They have two wings (single pair), large compound eyes, short antennae, and a well-developed sucking or piercing mouthpart.
2. Larval dipterans (maggots): They are legless, have a soft and segmented body, and display a tapered head with a pair of hooks used for feeding.
3. Ticks: They are eight-legged, have a flattened body, possess a unique mouthpart called a hypostome for blood-feeding, and show sexual dimorphis
m with females being larger.
4. Sarcoptiform mites: They have eight legs, are microscopic, possess a round or oval body with short legs, and have chitinous exoskeletons, with some species being associated with scabies in humans.
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give a brief description of the process of synthesis of food in green plants
Answer:
The process by which plants make food is photosynthesis. Photosynthesis is the process in which green plants use sunlight to make their own food. Photosynthesis requires sunlight, chlorophyll, water, and carbon dioxide gas. Chlorophyll is a substance in all green plants, especially in the leaves.
Weigh the efficacy of using prokaryotes over eukaryotes for certain industrial purposes and energy production.
The eukaryotic cells' internal areas become more functionally concentrated as a result of the integration of organelles. Hence, eukaryotic cells are significantly more efficient than prokaryotic cells at producing energy and getting rid of waste.
What is a eukaryotic cell?Eukaryota is a varied domain of organisms whose cells have a nucleus. Eukaryotes are the group's members. Eukaryotes include every type of animal, plant, fungus, and numerous unicellular organisms. One of the three domains of life is known as the Eukarya, which is a class of organisms. Monera (prokaryotes), Animalia (Metazoa), Plantae, Fungi, and Protista are recognised as four eukaryotic kingdoms in the most well-known classification scheme, the "Whittaker" five kingdom structure.The nucleus is the distinctive trait that distinguishes prokaryotic cells from eukaryotic cells. Prokaryotic cells lack a genuine nucleus, and eukaryotic cells are the only ones to have membrane-bound organelles.Large and complex creatures are created by eukaryotic cells, which have nuclei encased in nuclear membranes.To learn more about eukaryotic cells, refer to:
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A student investigates the effects of fertilizer on corn plants by performing the following steps: 1. Plant groups of corn plants in the same type and amount of soil in full sunlight. 2. Add the same amount of different brands of fertilizer to each group. 3. Water the plants for 5 minutes each day. 4. Measure the heights of the plants each day. What is the independent variable in this investigation?
I think the answer would either be the different brands of fertilizer
easy asnwer get brainlest
Answer:
the last one
Explanation:
Answer:
4!
Explanation:
When do molecules stop moving or vibrating? *
Answer:
never
Explanation:
BRAINLIEST TO CORRECT ANSWER!!!
Which TWO locations are most likely to have both earthquakes and volcanoes?
O A. Transform fault zones
OB. Mid-ocean ridges
OC. Deep ocean basins
OD. Subduction zones
Answer:
the answer is C give brainliest if it's correct
The two locations are most likely to have both earthquakes and volcanoes are the plate boundaries which are very much prone to the conductance of Earth quakes. The answer to the question is option C.
What are the plates that are involved in the region of earthquakes ?
These are the tectonic plates that are involved for the same.
Both the volcanoes and the earthquakes are usually caused along the same boundaries of the tectonic plates that are due to their own movements along with the interactions. The movement in the narrow zones that are along the plate boundaries which causes most of the earthquakes.
The Ring of Fire that is also referred to the Circum-Pacific Belt which is a path passing along Pacific Ocean that is characterized by the active volcanoes and the frequent earthquakes . The major of Earth's own volcanoes and earthquakes usually take place only along Ring of Fire.
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an artical that is undergoing is read carefully and checked by other scientists
Peer review is the process of having another expert in the same field examine an author's academic work and study to verify its validity and determine whether it should be published.
How do Medi-Cal and Medicaid differ?California's Medicaid system is known as Medi-Cal. Federal and state governments each contribute a portion of the cost of Medicaid. The Medi-Cal program in California offers comprehensive health insurance coverage that pay for all essential medical costs up to the program's maximums.
Medicaid is Medi-Cal, right?California's Medicaid system is known as Medi-Cal. Children and adults with modest incomes and resources can access free or inexpensive medical care through this public health insurance program.
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genes turn on or off to regulate the activity of multiple choice rna. multifactorial disorders. differentiation. mutation.
Genes that are turned on or off to prevent the function of most RNA options are mutations. The process of turning genes on and off is called as Gene regulation.
Gene regulation is an important part of usual development. Genes are turned on and off differently during development so that brain cells form and function differently than liver cells or muscle cells, for example. Gene editing allows cells to respond more quickly to changes in their environment. A mutation is a change in the DNA sequence of organism. Mutations can result from DNA replication errors during cell division, exposure to mutagens or viruses. Genetic processes can occur at any time during gene expression, but most often occur at the level of transcription (when the information in the gene's DNA is passed down to mRNA).
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two reasons why extreme cold mathylated spirit is used
Methylated spirit is used in extreme cold because it has a low freezing point and evaporates quickly.
Why is methylated spirit used in extreme cold?Methylated spirits, also known as denatured alcohol, is a type of alcohol that has been treated with chemicals to make it unsuitable for consumption. It is often used for cleaning or as a fuel for camping stoves.
Extreme cold methylated spirit, also known as freezing mixture, is a mixture of methylated spirits and other chemicals that produce a very low temperature. It is commonly used in science labs and medical facilities for a couple of reasons:
To create a low-temperature environment: Extreme cold methylated spirit can create temperatures as low as -70°C, which is useful for storing samples, such as blood, tissue, or DNA, for research purposes.In both cases, extreme cold methylated spirit is preferred over other cooling methods because it is easy to handle, has a low cost, and does not leave any residue.
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What are the characteristics of Weberian bureaucratic?
Answer:
no they are not live
Explanation:
Characteristics of Weberian bureaucratic are:
specialization and division of laborformal written recordscompetence for job appointmentsstandard operating proceduresimpersonality in bureaucracy.What is Weber's theory of bureaucracy?
Max Weber's theory of bureaucracy is an approach that proposes a specific way to manage an organization. It proposes that the most appropriate way to run an organization is to structure it into a rigid hierarchy of individuals governed by strict rules and regulations.
What is an example of bureaucratic theory?
An Army division is broken down into brigades. The brigades are broken down further into battalions. Battalions are divided into companies, and companies are broken down into platoons.
Thus, these are the 5 characteristics of Weberian bureaucracy.
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A farmer has a large field with one type of
crop. This area has high biodiversity.
Agree
Disagree
A lab scientist investigating the effect of caffeine on the brain measures the activity of a rat dosed with caffeine. 5.0 seconds after jumping on an exercise wheel, the rat is running in place at 1.4 m/s. The wheel has a .27 m diameter and a mass of 7.5 kg. Model the wheel as a hoop. a) What is the average rotational acceleration of the wheel in the first 5.0 seconds. b) How much work did the rat perform in this period of time?
Wiping down hand rails with ethanol is best described as
A. sanitization.
B. sterilization.
C. disinfection.
D. antisepsis. The process of autoclaving bacterial growth media prior to use
A. sterilizes the media.
B. reduces the number of endospores.
C. kills all vegetative bacteria.
D. reduces the number of vegetative bacteria.
E. increases the media's nutrient value.
option (A) sterilizes the media is the correct answer.Wiping down handrails with ethanol is best described as disinfection.
Disinfection is a process that removes pathogenic microorganisms (but not necessarily all microbial forms) from inanimate objects. Ethanol is a common disinfectant that destroys most vegetative cells of bacteria, fungi, and viruses. Ethanol is known as a dehydrating agent, which removes water from cells and denatures their proteins. Sanitization refers to the process of removing dirt and dust from a surface. Sterilization refers to the process of destroying all forms of microbial life, including bacterial endospores. Autoclaving bacterial growth media prior to use sterilizes the media. Hence, option (A) sterilizes the media is the correct answer.
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PLEASE DO THIS WITH YOUR OWN WORDS 20 POINTS
Explain how Earth's atmosphere has changed over time.
Answer:
It describes changes in the state of the atmosphere over time scales ranging from decades to millions of years. These changes can be caused by processes inside the Earth, forces from outside (e.g. variations in sunlight intensity) or, more recently, human activities.
Explanation:
brainliest or 5 stars and heart
ithin systemic capillaries, substances such as oxygen, hormones, and nutrients move by from their relatively high concentration in the blood into the interstitial fluid and then into the tissue cells, where the concentration of these materials is low.
The process by which substances such as oxygen, hormones, and nutrients move from their relatively high concentration in the blood into the interstitial fluid and then into the tissue cells, where their concentration is low, is called "diffusion".
Diffusion is a passive process that occurs due to the random movement of particles from an area of high concentration to an area of low concentration. In systemic capillaries, substances such as oxygen, hormones, and nutrients diffuse out of the blood into the interstitial fluid, which is the fluid that surrounds the cells in the tissues. From there, these substances can further diffuse into the tissue cells, where their concentration is relatively low.
This process of diffusion is essential for the exchange of gases, nutrients, and other substances between the blood and the body's tissues, allowing for the proper functioning of cells and organs. Additionally, other factors such as pressure gradients, temperature, and molecular size may also influence the rate and direction of diffusion in systemic capillaries..
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Three tomato plants vary in the shape of their leaves: a has smooth edges on its leaves, b has wavy edges on its leaves, and c has smooth edges with bumps in the center of the leaf.
If plant Has a smooth edges on its leaves, B has wavy edges on it's own leaves, and C has smooth edges to bumps in the Centre of the leaf
We can conclude that now the expression of siRNA 2 in plant A and B is trying to target a gene associated with beetle resistance (question 1). SiRNAs seem to be short RNA sequences which target complementary mRNA, blocking and inhibiting expression of genes
Creating smooth edgesEmergence of wavy edgesSmooth edges with bumps in the Centre formationThe beaten prefer leaves with smooth edges. The wavy-edged left can also be eaten, but the one that has bumps inside the Centre creates a barrier for the beetles and thus is resistant to them.
Small interfering RNAs or siRNAs can be defined as short RNAs with less than 30 nucleotides size that bind by complementary to target sequences and thus act to repress gene expression. Small interfering RNAs or siRNAs inhibit gene expression by RNA interference mechanisms.
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FILL IN THE BLANK. ________, plants and animals are responding to changes in concentrations of carbon dioxide, local temperatures, and precipitation patterns.
In both __plants and animals__, the organisms are responding to changes in concentrations of carbon dioxide, local temperatures, and precipitation patterns.
Plants and animals are two broad categories of organisms that inhabit various ecosystems on Earth. Both plants and animals exhibit responses to environmental changes, including shifts in carbon dioxide concentrations, local temperatures, and precipitation patterns.
Plants, through a process called photosynthesis, utilize carbon dioxide as a raw material to produce glucose and oxygen. Changes in carbon dioxide concentrations can affect the rate of photosynthesis, leading to adjustments in plant growth, development, and productivity. Additionally, plants have mechanisms to regulate their stomatal openings, which can respond to changes in carbon dioxide levels to optimize water use efficiency.
Similarly, animals, including both vertebrates and invertebrates, can respond to changes in environmental conditions such as temperature and precipitation patterns. Many animals have physiological and behavioral adaptations that allow them to cope with temperature variations. For example, animals may adjust their metabolic rates, alter their distribution or migration patterns, or modify their behaviors to seek out suitable microclimates or habitats. Changes in precipitation patterns can impact animal behavior, reproduction, and resource availability, influencing their survival and population dynamics.
Overall, both plants and animals play crucial roles in responding to changes in carbon dioxide concentrations, local temperatures, and precipitation patterns, as they strive to adapt and survive in their respective environments.
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Why are invasive alien species a problem? Name one invasive
alien species and explain.
The question is related to geography.
Invasive alien species are a problem because they can cause significant ecological and economic damage to their new environments. They outcompete native species for resources, disrupt ecosystems, and reduce biodiversity. One example of an invasive alien species is the zebra mussel (Dreissena polymorpha).
The zebra mussel is native to the Caspian Sea and was accidentally introduced to North America in the ballast water of ships.
They have since spread to many water bodies across the continent.
Zebra mussels reproduce rapidly and form dense clusters, clogging pipes and damaging infrastructure.
They also filter large amounts of phytoplankton from the water, impacting the food chain and causing declines in native species.
In geography, invasive alien species are studied because they can have significant impacts on ecosystems and human activities.
Governments and organizations monitor and manage invasive species to mitigate their negative effects.
In summary, invasive alien species pose a problem due to their ability to disrupt ecosystems and cause economic harm.
The zebra mussel serves as an example of an invasive alien species that has had widespread negative impacts.
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What is the name of the supercontinent that formed at the end of the Paleozoic
Answer:
Pangaea / Pangea
PLEASE MARK BRAINLIEST
Bio 4
Travel/transportation is used in determining your carbon footprint. Discuss the ways you can, and can't, change your transportation carbon footprint [You might want to go back and look at the questions related to transportation in your carbon footprint]. What is the best way to deal with the issue of climate change and transportation? In other words, what changes do you think must occur in the U.S. before we see a reduction in the transportation carbon footprint? You'll need at least 10-12 sentences to fully answer this question.
Travel/transportation is a significant contributor to a person's carbon footprint. The use of automobiles, airplanes, and other modes of transportation emits carbon dioxide into the atmosphere.
There are several ways to reduce your carbon footprint from travel/transportation.
For instance, you could walk, cycle, or use public transportation instead of using a personal car.
Walking and cycling have no carbon emissions, while using public transportation emits significantly less carbon than personal cars.
Furthermore, using an electric vehicle instead of a gas-powered one could reduce your carbon footprint from travel/transportation.
Finally, reducing the number of flights you take in a year could also help reduce your carbon footprint.
Despite your efforts, there are some things you may not be able to do to reduce your carbon footprint.
For instance, you may not be able to walk, bike or use public transportation to some destinations.
Furthermore, not everyone can afford electric vehicles or may not have access to charging stations. Finally, some people may have to fly frequently due to work or other reasons.
There are many changes that must occur in the US before we see a reduction in the transportation carbon footprint. First and foremost, public transportation must be expanded and made more accessible, as well as affordable.
Electric vehicles should also become more affordable and accessible to everyone.
To encourage people to switch to electric cars, charging stations should be made widely available.
Furthermore, the government could incentivize people to use electric vehicles by offering tax breaks.
Finally, carpooling could be encouraged to help reduce the number of personal cars on the road.
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A green rat snake that lives in the grass and a brown rat snake that lives in the desert is a form of _______________
a
genetic engineering
b
natural selection
c
selective breeding
d
simple variation
Answer:
Natural selection
Explanation:
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you may have read about alkaline diets that claim that you need to only eat alkaline foods in order to remain healthy according to this philosophy eating acidic Foods acidifies the blood leading to disease but our blood has several buffer systems in place explain what happens when buffers encounter additional hydrogen ions from foods will the pH of the blood decrease
Answer:
Mechanisms are activated where it is sought to lower the amount of free protons in the blood, that is, to reduce acidity, these mechanisms work between two large systems, the receptor system, the respiratory system and the renal system.
Explanation:
When a metabolic acidosis is entered, either by a food, or by a disease or even an intense physical activity, the lungs seek to generate hyperventilation, to increase the concentrations of oxygen in plasma and absolutely decrease the carbon dioxide concentration, thus not the blood becomes even more acidic.
On the other hand, the digestive system together with the sensory system, will warn this proprioception of the acidity of the plasma and will promote the dilution of these acids with a solvent, which is water, promoting the sensation of thirst.
Finally, the kidneys will seek to retain all the alkaline solutes to neutralize the physiological internal pH, and will release through the urine and the channels of acidic compounds, the products or acid metabolites to the external environment, that is, acid urine excretion.