1. Isopropanol is a compound used to dissolve lipids and as a dehydrating agent. When mixed with DNA, they compete for water causing the DNA to dehydrate and separating the mixture into two phases.
2. Every living organism contains DNA. This includes plants and animals, and therefore most of the food we eat.
3. DNA contains the hereditary information of all living organisms.
For example, in humans it is important to extract DNA for the identification of diseases, their causes and possible treatments.
In food, DNA extraction can help in the production of transgenic foods.
Are fungi autotrophs or heterotrophs? Explain your answer using scientific reasoning and data
Answer:
Yeasts, molds, and are all different kinds of fungi. Fungi are heterotrophs, meaning they obtain food from outside themselves. Common fungi include yeasts, molds, and mushrooms.
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Why are video games so fun? Can any one explain, i'm just so confused
Answer:
I really don't know
Explanation:
Each video game is addictive for different reasons. Also, each person may find different elements of a game addictive. Although every case is unique, there are general patterns that can help explain why video games are addictive.
Video games are addictive because they help meet our basic psychological need for a sense of freedom, purpose/progress, and social connection.
Let’s take a closer look at each of these factors.
Video games offer a sense of freedom
Video games can be addictive because they offer a high degree of freedom that is unparalleled outside gaming environments. Let’s take a look at a few ways video games facilitate a sense of freedom.
Video games allow you to escape from social constraints.
From fantasy science fiction worlds to realistic combat environments, games allow a person to escape from the normal constraints of the offline world. This is especially relevant for someone struggling with social anxiety.
Offline social interaction can be challenging for individuals who find social situations anxiety-provoking, confusing, or over-stimulating. Games offer an escape from the constraints of social anxiety, providing a sense of freedom and control.
Although games serve as a short-term escape, avoiding in-person social situations comes at a long-term cost. Rather than facing one’s fears and dealing with the anxiety, games offer virtual freedom while keeping an individual dependent on the game as a form of escapism. Using games to avoid difficult emotions can lead to increased use over time, making in-person interaction even more difficult.
Video games allow you to experiment with different identities.
By experimenting with one’s personal gaming avatar, games offer the chance to try out new identities instantly, without the long-term social implications of the offline world.
This can be especially engaging for individuals who are dissatisfied with their offline identity, suffer from low self-esteem, or feel they cannot express certain aspects of their identity in their offline social context.
Identity experimentation through games can be healthy and liberating, but it can also be detrimental to developing one’s offline identity and sense of self-esteem. This is especially relevant if games serve as a form of escape or way to avoid confronting deeper self-esteem issues.
Video games offer a sense of adventure.
Games offer the infinite ability to explore new worlds. For those high in novelty-seeking, gaming environments offer a high level of exploration and experimentation without the dangers present in the offline world.
The modern world can often seem mundane, especially if you are bored and dissatisfied in your work or schooling. Gaming environments offer a way out of this monotony of everyday life and can be addictive because of the infinite possibilities they present.
Video games offer a sense of purpose
Video games can be addictive because they offer a strong sense of mission and purpose. Let’s take a closer look at how games offer a sense of purpose.
Video games facilitate a sense of progress through leveling up.
Games offer a sense of progress through their mission orientation. In addition, players gain a sense of mastery when their skills improve. This mission orientation and skill improvement are symbolized by character development, resource acquisition, leveling up to new environments, and various point systems.
This sense of progression can be especially rewarding for someone who feels like they are in a rut in their offline life. Games offer a way to meet our basic need to feel like we are progressing, even if it is virtual.
Another addictive feature common in games is their variable-ratio reward schedule. Like slot machines, games are designed with features that randomly reward players, keeping them hooked on a sense of anticipation. Loot boxes are a common form of this reward structure.
Video games with no defined end encourage infinite play.
Games with no defined endpoint encourage long-term investment. This can be addictive because the more time and energy one invests into an activity, the more difficult it is for them to simply abandon all of their efforts.
In addition, long-term play with a specific avatar builds a sense of identity investment, making it more difficult to let go.
Wind flows from an area of high air
pressure (more air) to an area of low
air pressure (less air). Why does wind
do this? What process is this an
example of?
Answer:
a
Explanation:
Is resource availability the onlyfactor affecting carrying capacity?A. Yes, resources are the only factor affectingcarrying capacity.B. No, changing seasons and disease also affectcarrying capacity.C. No, predation and omnivore activity affectcarrying capacity.
Let's first define what carrying capacity is:
Carrying capacity is the maximum amount of organisms an ecosystem can carry. It is related to our logistical growth formula:
[tex]\frac{dN}{dt}=r_{max}(\frac{K-N}{K})N[/tex]Where K is our carrying capacity.
Carrying capacity is affected by a couple of things:
0. Resource availability,: depending on how many resources there are in an ecosystem, it can only hold so many organisms.
,1. Space,: depending on how ,large, an ecosystem is, the denser the ecosystem (of organisms), the harder it is for the organisms to coexist. Therefore, the smaller the area, the lesser the carrying capacity.
These 2 factors (resources being biotic and space being abiotic) are the only factors few factors that affect carrying capacity.
Therefore, our best answer choice is A.
The process that allows molecules to move through a protein channel from an area of high concentration to low concentration.
A. Active Transport
B. Simple Diffusion
C. Osmosis
D. Facilitated Diffusion
Answer: D. Facilitated Diffusion
Explanation: Two classes of proteins that mediate facilitated diffusion are generally distinguished: carrier proteins and channel proteins.
when have you used skills of observation, experimentation, modeling? Describe and example of how you have used this skill
Observation is the act of carefully watching something over time.
Experimentation Scientists may perform experiments in the lab or in the field. lab experiment gives the researcher more control, the artificial setting does not reflect the complex interactions that occur in nature.
Field experiment, on the other hand, gives a more accurate picture of how organisms interact in a natural setting.
Modeling scientists use computer and mathematical models to describe and model nature. example, It is possible for some people to learn and adapt to completely new computer systems at work, while others have adjusted to the challenges of working remotely.
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The skeleton is controlled by the muscular system. What is the muscular systemcontrolled by?A. The voluntary nervous system.B. The endocrine system.C. The involuntary nervous system.D. The exocrine system.
The muscles are controlled by the nervous system, The somatic nervous (voluntary) system is the part of the peripheral nervous system associated with the voluntary control of skeletal muscles.
On the other hand, the involuntary nervous system represents the movement of cardiac muscle, and gland cells.
Therefore, the skeletal muscles are controlled by the voluntary nervous system. The answer is a.
Water molecules moves out of a red blood cell and its shrivels is an example of.
A Protein Channel
B Simple Diffusion
C Facilitated Diffusion
D Osmosis
Answer: D Osmosis
Explanation: Water moves into and out of cells by osmosis
Since both the liver and skeletal muscle can store glucose as glycogen, both organs can break down the glycogen into free glucose to release into the blood.
a. true
b. false
Since glucose is required for muscle contractions, a proper glucose metabolism is crucial for optimal health.
What different role of glucose in liver and skeletal muscle?When the muscle contracts, the GLUT4 glucose transporter moves glucose from intracellular storage depots to the plasma membrane and T-tubules, allowing it to enter the muscle cell.
A little quantity of glucose is kept in the brain, but the majority of it is kept as glycogen in the liver and skeletal muscles.
Exercise-induced muscle contraction boosts glucose absorption in skeletal muscle in addition to insulin stimulation. The facilitative GLUT4 is redistributed from intracellular storage vesicles in response to both stimuli.
Therefore, it is false that both the liver and skeletal muscle can store glucose as glycogen.
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How does the color adaptation help fish residing in the coral reefs?
The bright body color of the fish in the coral reefs helps in ________ to hide from the predator or ambush a prey.
the correct answer is in the picture since no one put the right answer
Answer:
u already got the answer right what ur question
Answer:
camouflaging
Explanation:
plato
Hi I’m not sure if I’m right with this Question I need some help please and thank u
The reason why these cells can develop too many tasks at once, beyond having the specific genes expressed, is that they can constantly produce usable forms of energy in form of ATP by using glucose in cellular respiration. So the correct answer to this question is the final one.
Which of the following is true of jet streams?
A It is found close to the ground
B It occurs only in the stratosphere
C It's a current of fast moving air
D It's a current of stationary air
A normal allele for a gene has more base pairs than the mutated form of the allele. Which type of mutation occurred?
O base pair separation
O base pair insertion
O base pair substitution
O base pair deletion
Answer: Base Pair Deletion
Explanation:
If the normal allele has more than the mutated then that means nucleotides were lost so a deletion occurred.
Answer:Base Pair Deletion
Explanation:
We know this because it is stated that the normal gene has more base pairs than the mutated gene. In other words, the mutated gene has less base pairs than the normal gene, which means that base pairs must have been deleted during the mutation.
A patient with and O blood type can receive a transfusion from a donor with blood type ____ only.a) ABb) Oc) AB, A, or Od) AB, A, B, or Oe) AB, A, or B
Blood types are determined by the proteins present on the surface of the red blood cells.
• In blood type A, red cells have A antigens and there are anti-B antibodies in the plasma.
,• Blood type B has B antigens and anti-A anitbodies
,• Blood type AB has A and B antigens and no antibodies
,• Blood type O, has ,no antigens ,and ,both anti-A and anti-B antibodies.
Is important not to pair antigens and antibodies, as the antibodies of the recipient will attack the antigens.
For example, if a person with O blood type receives AB blood, the patient's anti-A and anti-B antibodies would attack the donor's blood because the red cells have A and B antigens.
This means that a person with O blood type can only receive blood type O because those red cells don't have any antigens on their surface (option b).
What’s the correct answer answer asap for brainlist
Answer: B
Explanation:
Subject: English
Question: reread the paragraph that begins on page 2, and ends on page 3.
Click the underlined phrase that uses I literally device to make Northridge Junction seem like a desperate person.
The phrase "he clung to an exposed ledge over the valley from which the train had left" Northridge Junction seems like a desperate person, because out of feeling and/or despair he clung, in this sentence the verb to grab makes it seem like a desperate way not to be in danger of life.
What is despair?Despair is an emotional state of extreme tension, anxiety and fear.
The person immersed in this state cannot get out easily, because his negative perception contributes to his always being down. When recurrent, it becomes clinical and can take control of emotions.
A hallmark of clinical despair is the meaninglessness of feeling. There are no imminent threats, suffering or dangerous circumstances. Even so, the person experiences this state again and again.
What are the causes for despair?Despair is associated with some mental disorders, such as depression, anxiety, post-traumatic stress disorder, and especially panic syndrome.
Commonly, it is also caused by negative events in the person's life, such as trauma, divorce, dismissal, death of a loved one, abuse, use of chemical substances, among others.
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Which of the following is not a means of locomotion in protists?stigmaflagellaciliapseudopod
Between the options the only one that is not a mean of locomotion in protists is the stigma, that is a plant structure and not a locomotion strategy . All the others are locomotion strategy for protists.
Which response represents the largest to the smallest, in terms of size?Select one:a.eukaryotic cell, prokaryotic cell, virusb.prokaryotic cell, virus, eukaryotic cellc.virus, eukaryotic cell, prokaryotic celld.eukaryotic cell, virus, prokaryotic cell
The correct option that represents the largest to the smallest, in terms of size is a.
proteins assist the human body in which of the following ways
Chemical reaction:
yes, as enzymes are proteins that catalyze biochemical reactions.
Energy storage:
This is not a main function of proteins.
Fighting infections:
Yes, as antibodies are proteins that our imune system makes to help fight infection.
Chemical signaling:
yes, as many of the molecules used by a cell to communicate with others are proteins.
scientists in the 1950s performed an investigation to test whether organic compounds could beproduced by stimulating the conditions of primitive earth. They placed a simple compoundsthey thought existed in the atmosphere of early earth in a heated vessel and used electricsparks to stimulate lightning. Then they determined whether sugars and amino acids werepresent period which of the following would not be an appropriate scientific activity?A. Using the results to design an additional investigation.B. making a prediction before beginning the investigation.C. systematically recording the results of the investigation.D. choosing data that confirmed the hypothesis of the investigation.
to answer the question, we will discuss each item:
A) The results obtained during an investigation are information that can be used to design subsequent experiments that will answer questions that could not be answered in the first experiment.
B) The activity of making a prediction before performing an experiment is called hypothesis, which is based on observations. That is, first we will observe the phenomenon, and based on our reasoning we will generate a prediction or hypothesis that we will test with an experiment to see if it is correct.
C) An important part of the research is to have detailed records of each part of the experiment, this way if there is an error we can know in which part of the experiment it occurred and also we can give this information to other researchers so that they can replicate the experiment and confirm the results we obtained.
D) Finally, when the experiment is finished and when we are analyzing the information, we must take all the data into account and not only those that confirm our hypothesis, since that would give us an erroneous conclusion and would be a bias of information. Therefore, the answer is D.
What analogy is used to describe how cell replication is regulated?
Driving a car might be one common analogy used to describe how cell replication is regulated.
What is the cell replication cycle?The cell replication cycle is a sharply regulated process that resembles driving a car because there are many steps that can be stopped to continue with the process.
In the case of the cell cycle, there are major points of control that regulate the progression through this process which involve the Growth 1 phase (G1), the synthesis S phase and the Growth 2 (G2) phase. All these phases in the cell cycle are regulated by the presence of cyclin proteins that are phosphorylated by cyclin-dependent kinases in order to continue with the cell cycle.
Therefore, with this data, we can see that the cell cycle is a sharply regulated process that has several points of control where the cell recognizes that all is fine to continue with the process.
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What flower is the symbol of the sun and the symbol of Japan?
Answer:
Chrysanthemum
Explanation:
Chrysanthemum
What Philosophy (Eastern or Western) do you believe defines you as a Filipino? Why?
Philosophy and religion in the Philippines are practically Christian, so the philosophy that defines you Filipo is Western.
What is Philippines?The Republic of the Philippines (Republika ng Pilipinas, in Filipino; Republic of the Philippines, in English) is an independent country located in Southeast Asia, whose capital is Manila. Its total area is around 300,000 km², slightly larger than the state of São Paulo. The country's population is about 93.6 million, mostly followers of Christianity, of the Catholic branch, with an important minority following Islam. The official languages are Filipino and English, and the currency is the Philippine Peso. The Philippines is an archipelago of 7107 islands located between Malaysia, Indonesia, Taiwan and China.
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DEFINE INTERCALARY MERISTEM
A basic meristematic structure called an intercalary meristem contains cells that can divide and aid in the growth of the plant. They are situated at the internode bases.
What does intercalary mean?placed inside a calendar. a day of intercalation. containing an intercalary period (such as a day or month) of a year; interpolated; inserted between other things or sections.
What is the intercalary meristem's other name?As a result, the intercalary meristem in grasses is frequently called the grass meristem.
Are where intercalary meristems to be found?The meristems found at the base of an internode's stem or leaf are known as intercalary meristems.
It aids in the lengthening and expansion of plants' nodes and internodes (stems and leaves), as well as their longitudinal growth (grasses).
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Cutting is the easy technology to produce large number of vegetative seedlings at a time . How explain
Many plants, especially horticultural and garden varieties, are propagated through cuttings; by the use of new techniques, many other plants formerly not susceptible to propagation through cuttings have more successfully reproduced. The plants that develop from cuttings are clones.
Explanation:The cutting method is a technique of vegetative reproduction in plants. In this method, a branch of the stem is cut out from the plant and buried in the soil. New leaves arise from the nodes in the stem and the new roots also develop giving rise to a whole new plant. Example- rose, sugarcane. Cuttings can be made from any part of the plant. Most frequently, however, either a stem or leaf is used. A stem cutting includes a piece of stem plus any attached leaves or buds. Thus, stem cutting only needs to form new roots to be a complete, independent plant. A cutting is a section of plants such as a modified stem, leaf, or root used for vegetative propagation that forms either adventitious shoots, adventitious roots (stem and single node cuttings), or both (root and leaf cuttings). These are long pieces of roots which are used to artificially propagate new plants. For example, lemon, orange, blackberry, boysenberry, raspberry, etc. Cutting gives young children independent movements of each finger. Cutting with scissors works on the separation of two sides of the hand and strengthens hand muscles. Bilateral coordination is also addressed when they have to hold the scissors in one hand and the paper in the other. The four main types of stem cuttings are herbaceous, softwood, semi-hardwood, and hardwood. These terms reflect the growth stage of the stock plant, which is one of the most important factors influencing whether or not cuttings will root. You will get greater uniformity (clones) of your plants. The plant will reach maturity at an earlier age. When a recipe specifies how to cut an ingredient, it is important to follow the instructions because using the proper cutting technique will affect the dishes cooking time and will help ensure the food cooks more evenly and maximizes flavour.
Cutting is the easy technology to produce large number of vegetative seedlings at a time because the plants which are not susceptible can be easily propagated through this.
What is Vegetative propagation?
Many plants, especially those of horticultural and garden varieties, are propagated through cuttings. By the use of new techniques, many of the other plants formerly those which are not susceptible to the propagation of plants through cuttings which have more successfully reproduced. The plants that develop from cuttings are clones.
Most of the plant cuttings include stem pieces, and these have no root system of their own, and are therefore likely to die from dehydration of plant parts if the proper conditions are not met. Plant cuttings require a moist medium, which, however, cannot be too wet as this can rot the plant cutting. A number of media which are used in this process include however are not limited to soil, perlite, expanded clay pellets, and even water if given the right conditions. Most of the succulent cuttings can be left in open air until the cut surface dries, which may improve the formation of root when the cutting is later planted.
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If a graph shows time on the horizontal axis and speed on the vertical axis, a straight horizontal line across the graph would indicate?A. No Motion b.constant speed c.steady acceleration d. Maximum speed
Answer:
An horizontal line would indicate constant speed (option b) that is because
Complete a Punnett square on your own in order to answer the question: A purple flowered daisy plant is crossed with a red flowered daisy plant. What is the probability of producing a purple flowered daisy plant?
A cross between a purple flower (BR) and a red flower (RR) will result to:
BR - 50% purple flowers
RR - 50% red flowers
Purple flower is a cross between blue and red flower which is a dilution of two dominant traits (blue and red color) resulting to a new heterozygous phenotype (purple flower).
9. [03.02]
Which of the following pair of elements could possibly be in the same group? (1 point)
X has a 1+ ion; Y has a 1-ion.
O X has an atomic number 15; Y forms a 3-ion.
OX tends to form a 2+ ion; Y tends to gain two electrons.
X will tend to gain one electron; Y has eight electrons in the outer orbit.
An element having an atomic number of eight and a mass number of 18 will contain eight protons.
The total number of protons and neutrons in the nucleus of an atom of a specific element is known as the atom's "atomic weight."
What is Atomic Number ?The charge number of an atomic nucleus is the chemical element's atomic number, also known as nuclear charge number. This is the number of protons present in the nucleus of each atom of that element, or the proton number, for conventional nuclei.
Ordinary chemical elements can be uniquely identified by their atomic number.
The atomic number is significant because it allows you to determine which element an atom belongs to. The fact that the contemporary periodic table is arranged according to increasing atomic number is another significant factor in why it matters. The atomic number is a crucial factor in defining an element's properties, to sum up.
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How can photochemical smog impact the environment? It can increase the number of insects in the area. It can reduce the amount of plastic in the ocean. It can increase tree and plant growth in a city. It can decrease the crop yield in a region.
The Photochemical smog impact the environment by decrease the crop yield in a region.
Photochemical Smog- When nitrogen oxides & organic compounds (VOCs) combine with sunlight, a mixture of pollutants called photochemical smog is produced, which explains why there is a brown cloud above cities. Due to the fact that we receive the most sunshine in the summer, it tends to happen more frequently. primary contaminates.
Global warming is being caused by the massive amount of fossil fuels which being consumed, which is increasing the amount of acid rain & photochemical smog produced as well as the quantity of atmospheric carbon dioxide.
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I WILL MARK BRAINLIST What’s the correct answer answer asap for brainlist please someone please
Answer: C
Explanation: