The diffusion is the process of movement of the molecules of a substance from a higher concentration region to a lower concentration region until equilibrium is attained.
The mechanism of diffusion in both cases can be explained as follows:When celery stalks are put in freshwater, the cells of the celery absorb water by osmosis. This causes the cells to swell up, and the stalk becomes stiff and hard. In contrast, when celery stalks are put in a 0.15M salt solution, the water present in the cells of the celery stalks moves out into the surrounding salt solution by osmosis.
As a result, the cells of the celery shrink, and the stalk becomes limp and soft. We can deduce from this that the celery cells contain a salt concentration that is higher than the salt concentration in the 0.15M salt solution. Therefore, when placed in the salt solution, water moves out of the cells, causing them to shrink and the stalk to become limp.
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In a particular organism, scientists notice that cells are dying at a higher rate than normal. Upon further examination, they find that these cells die after they became filled with large lipids and protein of many different sizes. what do you predict is the reason for the cells death apex
Answer: lysosomes are malfunctioning so molecules targeted for destruction are not being removed.
When the cell grows, prepares for division and divides into two new cells.
The cell cycle is the series of events that occur in a cell leading to its division and duplication of its DNA to produce two daughter cells.
The cycle consists of two main stages: interphase (G1, S, G2) and the mitotic phase (M). In interphase, the cell grows, replicates its DNA, and prepares for division. During the mitotic phase, the cell physically divides into two identical daughter cells through processes such as chromosome condensation, nuclear envelope breakdown, and formation of the cleavage furrow. This is regulated by checkpoints that ensure proper DNA replication and segregation before cell division can occur. The cell cycle is essential for the growth and repair of tissues and organisms.
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When did agriculture begin in Britain? What factors influenced the timing and location of where agriculture began in Britain?
Answer:
Explanation:
The British Agricultural Revolution describes a period of agricultural development in Great Britain from the 18th to the mid-19th century, during which there was a very high increase in agricultural productivity, yield and total production. These events caused an unprecedented population increase, freeing a significant percentage of the population from the countryside, which constituted the labor force of the Industrial Revolution.
The process through which the Agricultural Revolution developed does not seem very clear. The following basic factors are cited in this process:
The fencing of the cultivated fields.
Technical advances and mechanization
Appearance of iron plows
Use of seeders
New ways of drainage
Crop rotation
The improvement in livestock selection.
The selection of seeds.
New forms of economic organization of farms
Improvements in poultry guano fertilization methods.
Plants are able to produce energy from sunlight through photosynthesis. How do the products of photosynthesis in plants benefit animals, who cannot produce energy from sunlight?
Answer:
They produce sugars in order to survive and grow. Animals eat plants and take advantage of the nutrients produced by the plants. They also breathe in the oxygen produced as a by-product of photosynthesis
Explanation:
Plants use the energy in sunlight, water, and carbon dioxide to produce sugars which are used to provide chemical energy to power cellular processes. These sugars are also stored as starches.
Animals cannot produce their own food, and instead, rely on plants and other animals as a food source to power their own processes. Animals eat plants and obtain the food that plants have produced by photosynthesis. This is mostly carbohydrates (sugars and starch) but also some fats, proteins, and vitamins.
Which physical properties do all stars have? Check all that apply.
They are made of gases.
They shine very brightly.
They have a spherical shape.
They contain iron in their cores.
They make energy through fusion.Which physical properties do all stars have? Check all that apply.
They are made of gases.
They shine very brightly.
They have a spherical shape.
They contain iron in their cores.
They make energy through fusion.
Answer:
They are made of gases.
They contain iron in their cores.
They make energy through fusion.
Explanation:
Answer:
(A) They are made of gases.
(C) They have a spherical shape.
(E)They make energy through fusion.
Explanation:
i took the test edg2020
FAST IM GETTING TIMED BRAINLIEST
The following is an example of convection, conduction or radiation;The attic is really warm in the summer and the basement is cold
Conduction
Convection
Radiation
Answer:
The answer is Covection.
Explanation:
Convection current occurs where hot / warm air rises and cold air drops and replace it.
Answer:
I Would say Radiation.
Explanation:
The Attic is reciving radiation from the sun while the basement is not
(it could also be conduction, but im positive on radiation)
I. Choose the correct answer from the given alternatives A. circulating fluid 1. For circulation to occur all of the following is needed except - B. pumping device C. system of tubes through which fluids move D. All are necessary 2. The fluid that bathes the specialized cells & function in exchanging maintaining constant environment is called A. interstitial fluids B. tissue fluids C. A & B D. no answers 3. Which of the following is extra cellular fluid? A. plasma B. Lymph C. Aqueous humor 4. One of the following includes all the others A. Cardio vascular system B. Blood 5. All of the following are the function of the blood except A. Transportation B. Transpiration C. Heart C. Regulation D. Blood vessels D. Protection D. All
Heart and many blood vessels in the body make up cardiovascular system or circulatory system.
What is Cardiovascular system?System of organs that includes the heart, blood vessels and blood which is circulated throughout the entire body of humans or any other vertebrate is called blood circulatory system. It includes cardiovascular system that mainly consists of heart and blood vessels.
1. For the circulation to occur all of the following is needed except : B. pumping device
2. Fluid that bathes the specialized cells & function in exchanging maintaining constant environment is called: A. interstitial fluids
3. Which of the following is extra cellular fluid? D. Aqueous humor
4. One of the following includes all the others A. Cardio vascular system
5. All of the following are the function of the blood except B. Transpiration.
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You are doing a study on the enzymatic effects of lysosomes and want to follow the whole process from the formation of the enzymes to their use in the lysosome. In what location of the cell would you begin this observation?.
You are doing a study on the enzymatic effects of lysosomes and want to follow the whole process from the formation of the enzymes to their use in the lysosome. Endoplasmic reticulum (ER) is the place where this observation will begin.
As all enzymes are proteins hence we will begin with the endoplasmic reticulum to study the whole process from the formation of enzymes. The endoplasmic reticulum is the site that plays a central role in the synthesis of a protein.
Ribosomes, the sites where proteins are formed after the translation of mRNA, are present on the membranes of the rough endoplasmic reticulum (RER). After the synthesis of a protein, the rough endoplasmic reticulum (RER) also transports the proteins to the Golgi apparatus where the protein is packaged and processed.
Hence, to study the formation of enzymes, we will start with the rough endoplasmic reticulum (RER) whose membrane is the place where all proteins are made.
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Amino acid is to protein as
In certain fish, blue scales (B) and red scales (R) are codominant. Cross a blue
fish and red fish. What is the genotype of the offspring? What is the phenotype
of the offspring? **
Answer:
the genotype of the offspring would be RB, BR, RB, BR (well the genetic pattern of the fish varies for example the fish could have Bg meaning dominant blue and maybe recessive green im making this up and going into detail too much). the phenotype would have to be some sort of mix.
Explanation:
the genotype is the genes on the inside. i just use a table to mix it and assumed both fish were just pure blue/pure red. the phenotype is what's visible. it would be a mix such as maybe purple or red here and blue there. this is since they are both dominant and have to be expressed. same for blood types (AB blood). sorry for late answer.
The diagram shows an energy pyramid.
If the flowers contain 50,000 kcal of energy, about how much energy will the lizard obtain from eating the butterfly?
500 kcal
5,000 kcal
50,000 kcal
500,000 kcal
Answer: I would say 500 kcal
I’m not 100% sure though
Please comment if it’s right!
Answer:
A. 500 kcal
Explanation:
every cunsumer it passes it losses a zero
50,000 flower
5,000 butterfly
500 lizard
“CRISPR” (pronounced “crisper”) stands for Clustered Regularly Interspaced Short Palindromic Repeats. These repeats can be used to locate specific areas of genetic code so changes can be made. The technology can be used for editing genes of different types of organisms. Why is this possible?
CRISPR technology is possible because of the unique nature of the CRISPR-Cas system found in bacteria and archaea.
What is genetic?Genetics refers to the study of genes, heredity, and variation in living organisms. It involves the study of how traits are passed down from one generation to the next, and how they are expressed in individuals. Genes are the units of heredity that are responsible for determining an individual's physical and biological characteristics. They are made up of DNA, the molecule that carries the genetic information in living organisms. Genetic information can be used to study evolutionary relationships between organisms, and to develop treatments and cures for genetic diseases.
Here,
This system uses RNA molecules to target specific sequences of DNA and can cut the DNA at those locations. Scientists have been able to harness this system to create a tool that can be used to make precise edits to the DNA of various organisms. The CRISPR-Cas system works by creating a specific RNA molecule that can recognize a target DNA sequence. The RNA molecule is then paired with an enzyme that can cut the DNA at that location.
By changing the RNA sequence, scientists can change the target location of the enzyme, allowing for precise editing of the DNA. This technology has many potential applications in research, medicine, and biotechnology.
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COLLABORATE Brainstorm several human activities common in urban areas, with your partner. Rank these activities from the most to the least sustainable.
please help
Sustainable human activities promote the environment while non-sustainable human activities degrade the environment.
What are some human activities in urban areas?Human activities refers to the various activities carried out by humans in their day to day to help them survive or adapt to their envrionment.
Human activities may either be sustainable or non-sustainable to then and the environment
Some human activities common in urban areas include:
agriculture music and dance sports and gamesdriving of vehiclesThe most sustainable of these activities is agriculture while the least sustainable is driving of vehicles.
Therefore, sustainable human activities promote the environment while non-sustainable activities degrade the environment.
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What’s the difference between metals and nonmetals?
Answer:
Explanation:
metal are solid metals in room temperature, and several nonmetals are gasses at room temperature.
hope this helps
what direction does the wind blow
Answer:
East-west
Explanation:
Generally, prevailing winds blow east-west rather than north-south. This happens because Earth’s rotation generates what is known as the Coriolis effect. The Coriolis effect makes wind systems twist counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
Which of the following is NOT true about this cell?
A.) The haploid number would be 3.
B.) It has 3 pairs of chromosomes.
C.) The diploid number is 6.
D.) It is a haploid cell.
Answer:
A.) The haploid number would be 3
Answer:
The answer is A
Explanation:
What species of animal took residence in a georgia college library and also made a new home in central park?
The animal species that took residence in a Georgia college library and also made a new home in Central Park is the Eastern Gray Squirrel (Sciurus carolinensis).
What happened with the Eastern Gray Squirrel?In 2019, a group of Eastern Gray Squirrels took residence in the library of the University of North Georgia's Gainesville campus. The squirrels were discovered by library staff who noticed that they had made nests in the building's bookshelves. The squirrels became somewhat of a local attraction, with students and staff taking photos and videos of the squirrels in the library.
The Eastern Gray Squirrels are a common sight in Georgia, and their adaptability and intelligence make them well-suited to living in both natural and urban environments.
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pls help due now!!!!!!!!!!
Answer:
a
Explanation:
1. What is the primary organ used in the nervous system?*
A.Brain
B.Heart
C.Kidney
D.Skin
Answer:
A. Brain
Explanation:
Answer:
i would have to say A. Brain
Explanation:
because it is the only organ shown in the questions that is associated with the nervous system
Why would your muscle cells switch to anaerobic respiration if it doesn't produce as much ATP?
Help please
Answer:
Lack of oxygen
Explanation:
There are two mechanisms for energy production (glucose breakdown), aerobic and anaerobic. When adequate amounts of oxygen are present, aerobic mechanism is used. However, when there is insufficient oxygen, such as during exercise, the anaerobic mechanism is used.
The evolution of Drug-Resistance HIV. Within a few weeks of treatment with drug X, a patient's HIV population consists entirely of X-resistant HIV. Explain how this rapid evolution of drug resistance is an example of natural selection.
Bacteria can develop antibiotic resistance either by obtaining specific resistance genes from these other bacteria or by developing mutations that change the biological targets of antibiotics.
What does mutation entail?a deviation from the typical DNA sequence at a certain gene locus. Although the phrase is frequently associated with negativity, mutations (including polymorphisms) may affect cell activity in ways that are negative, positive, or neutral.
What are the four mutation types?Gametes experience germline mutations. Other bodily cells can develop somatic mutations. Mutations that modify the chromosome's structure are called chromosomal changes. A single nucleotide is altered by point mutations.
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when you eat an apple or a potato, which plant cell forms the majority of the tissue that you are consuming?
Using the theories of plant cell, we got that Parenchyma cells is the plant cell forms the majority of the tissue that we are consuming.
Parenchyma cells can stay alive, typically helping produce and store nutrients. They constitute majority of the plants.
These cells have vast intercellular space and are loosely packed. Parenchyma cells give support to the cells and are present in all of the parts, namely in the stem, in the leaves, in the roots, in the fruits and in the seeds too. Parenchyma cells form the basic packing tissue.
Hence, when we eat an apple or a potato, the plant cell which forms the majority of the tissue that we are consuming is Parenchyma cells.
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carry electrical charges at opposite poles.
A . nonpolar bonds
B. polar bonds
C. hydroelectric bonds
D. lonic bonds
Answer:d
Explanation:
when heart muscle cells are deprived of oxygen, the heart still pumps. what must the heart cells be able to do?
The heart cells able to continue aerobic metabolism when skeletal muscle cannot. To supply the muscles with extra oxygen and remove the carbon dioxide, the heart rate increases.
Aerobic metabolism:
A biological component known as adenosine triphosphate is used by aerobic metabolism to extract energy from glucose (ATP).
The energy in the human body comes from ATP, and the energy released when ATP molecules are broken up is used for many different biological processes, including the transport of molecules across membranes.
Cellular respiration, aerobic cellular respiration, and aerobic respiration are other names for aerobic metabolism. The human body is not designed to sustain anaerobic respiration for an extended period of time, and doing so would be extremely stressful.
Anaerobic metabolism is another type of metabolism that happens without oxygen.
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In no less than 300 words, summarize General Strain Theory, Social Control Theory, and Social Learning Theory. Provide an example for each.
General Strain Theory, Social Control Theory, and Social Learning Theory are among the leading criminological theories that explain criminal behavior, delinquency, and the reasons why people deviate from the social norm.
General Strain Theory(GST) is a sociological theory that asserts that individuals' strain or stress can lead to criminal behavior. According to GST, three sources of strain; failure, negative stimuli, and separation can contribute to an individual's deviant behavior.
Example: Suppose a person is looking for work but is continually refused because of his age. This may cause the person to feel frustrated and may lead him to engage in criminal behavior.
Social Learning Theory asserts that people learn to be violent or non-violent based on observation and modeling from their environment, and people in their social surroundings. The theory argues that people will engage in criminal behavior if they think the benefits outweigh the negative consequences. the theory also suggests that people are more likely to be violent if they feel their environment encourages it.
Example: A child might be exposed to a parent who uses violence as a means of problem-solving. They may grow up believing that violence is the only way to solve problems and begin engaging in violent behaviors themselves.
Social Control Theory argues that people do not commit crimes or deviant behavior because they fear the negative consequences of doing so and they are less likely to engage in deviant behavior as they have stronger ties to society.
Example: A person may choose not to engage in criminal behavior because they fear the punishment that may come with it.
In conclusion, these three theories attempt to explain criminal behavior and deviant behavior from different perspectives. While General Strain Theory argues that strain or stress leads to deviant behavior, Social Control Theory suggests that people will refrain from criminal activity because of the consequences. Social Learning Theory asserts that people learn from their environment and the people in it and may model or imitate their behavior.
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Based on current evidence, which of the following statements about gamma ray bursts is true? A. All those that we have detected occurred in distant galaxies.
B. They come primarily from the Milky Way's central black hole.
C. All gamma ray bursts are produced by supernovae.
D. They occur in the same types of close binary systems that produce X-ray bursts.
Based on the most recent data, gamma ray bursts are real. All of them occurred in far-off galaxies that we have found. There doesn't appear to be any other illumination that we can expect to detect from the sources of gamma ray bursts; they solely appear to emit gamma rays.
What produces gamma ray bursts?Now, scientists are aware that "long bursts"—those lasting longer than two seconds—make up the great bulk of gamma-ray bursts. They are supposed to happen when a large star has run out of fuel. The star's core disintegrates into the a black hole when there is nothing to stop it from being crushed by its own gravity.
What takes place during a gamma-ray burst?Directly directed gamma-rays would cause the ozone layer and a sizeable section of Earth's atmosphere to be destroyed. Photochemical haze would result from the chemical reactions that the burst's photons would trigger. This would significantly reduce the amount of cosmic ray protection we have.
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What happens when a cell grows to be too large?
Answer:
If this is an animal cell, the cell will likely burst.
If this is a plant cell, the cell will most likely not burst, but increase in turgor pressure.
Plant cells usually don't rupture because they have a cell wall surrounding the cell. Animal cells do not have a cell wall, and thus the plasma membrane may uncontrollably expand to the point of bursting.
what physiological (body) factors might cause one to get more squeezes, in other words, to have
Fatigue? (Hint: consider how the reactants of aerobic respiration get to your musde cells)
Answer: Heart strength and healthy circulatory system
Explanation:
Fatigue is considered to be the state in which a person cannot maintain the level of performance or training expected. Muscles are able to obtain energy by aerobic or anaerobic respiration and both use carbohydrates or sugars, but only aerobics needs oxygen. To perform physical activity, the heart pumps more oxygen to the muscles that are performing the exercise. When the muscles work harder, the body consumes more oxygen and produces more carbon dioxide. So, aerobic respiration is a type of metabolism in which the organism uses energy from organic molecules, especially as glucose, where the carbon is oxidized by the oxygen. 36 molecules of ATP per glucose are produced during aerobic respiration.
During an effort, the energy produced by aerobic breathing is not enough and muscles need to produce a complementary energy through anaerobic respiration which provides less energy than aerobic respiration. This type of cellular respiration produces waste products that the cells must eliminate, for example lactic acid, which remains in the muscles producing pain after exercise. Only 2 molecules of ATP are produced for each glucose during anaerobic respiration.
Therefore, the heart strength is important because that organ is responsible for carrying oxygen to the muscles, which is needed to perform cellular respiration and get more energy to perform the exercise. And there must be also a healthy circulatory system that delivers that oxygen to every part of the body.
Describe what happens to a chemical reaction with or without an enzyme.
Answer:
Without enzymes, many chemical reactions would occur at a much slower rate because the amount of activation energy required would be far greater. When molecules are involved in a chemical reaction, enzymes act as a catalyst for either breaking them down or building them up into more complex molecules.
Explanation:
Firstly, an enzyme is a chemical substance that speeds up a chemical reaction. This means that a chemical reaction with an enzyme present would be quick or happen at a faster rate.
Enzymes also help the substance undergoing the reaction to not get used up during the process.
However, if the enzyme is absent, the chemical reaction happens very slowly and also the substance undergoing the reaction gets used up during the process.
what is the role of estrogen on luteinizing hormone (lh) production? view available hint(s)for part e what is the role of estrogen on luteinizing hormone (lh) production? estrogen only has an excitatory effect on lh release so that as estrogen levels increase, there will always be a corresponding increase in lh levels. estrogen may have either an inhibitory or an excitatory effect on lh production depending on the overall estrogen levels. estrogen levels have no effect on lh production. estrogen only inhibits lh production so that as estrogen levels increase, there will always be a corresponding decrease in lh levels.
Estrogen has a complex role in regulating luteinizing hormone (LH) production.
In females, estrogen levels increase during the follicular phase of the menstrual cycle, leading to an increase in LH secretion. This increase in LH triggers ovulation. However, high levels of estrogen can also have an inhibitory effect on LH production, known as estrogen negative feedback.
This occurs during the luteal phase of the menstrual cycle when estrogen levels are high. In males, estrogen has a similar excitatory effect on LH production, but the mechanism is less understood. Overall, estrogen plays a crucial role in regulating LH production, and the effects depend on the timing and levels of estrogen in the body.
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