In this case, it is important to have into account the properties of hypertonic (sucrose) and hypotonic (distilled water) solutions:
Sucrose solution (higher concentration of water molecules in the onion cells) >> red onion cells will shrink >> smaller diameter.Distilled water (higher concentration of water molecules in the surrounding solution) >> red onion cells will become turgid >> higher diameterOsmosis refers to the movement of a solvent (usually water molecules) across semipermeable biological membranes, which occurs from a region of higher concentration to a region of lower concentration. There are three classes of solutions that have different effects on cells due to the process of osmosis:In a hypotonic solution, the cells will become turgidIn an isotonic solution, the cells will become flaccidIn a hypertonic solution, the cells will shrink (plasmolysis)When plant cells are placed into a hypertonic solution where there is a greater concentration of solute outside the cells (as in this case sucrose solution), water molecules will move from inside the cells to outside the cells, thereby cells will shrink due to water lossMoreover, when plant cells are placed into a hypotonic solution that is diluted in comparison to the content of the cell (as in this case plant cells placed in distilled water) water molecules will move from outside the cells to inside the cells, thereby cells will become turgid.Learn more about this topic here:
brainly.com/question/11789335?referrer=searchResults
brainly.com/question/11269438?referrer=searchResults
Why do oxygen levels drop sharply during eutrophication?
Explanation:
during eutrophication, there is a presence of excess algae in the water body. this causes an excess overconsumption of available organic materials by algae, causing the oxygen levels to reduce rapidly.
When the algae population grows rapidly, it may hinder sunlight from reaching other lifeforms and cause dissolved oxygen levels to fall.
What is eutrophication?Eutrophication is the substantial increase in phosphorus, nitrogen, and other organic material in an ageing aquatic environment such as a lake.
As the amount of organic material that can be subdivided into nutrients increases, so does the efficiency or fertility of such an ecosystem.
When the algae population grows rapidly, it may prevent sunshine from reaching other organisms and cause dissolved oxygen levels to fall.
The primary environmental impacts of eutrophication are an increase in suspended particles caused by extensive macroalgal blooms, a decrease in water clarity, and an increase in precipitation rate, which has resulted in the destruction of benthic habitat due to shading of submerged vegetation.
Thus, this way, oxygen levels drop sharply during eutrophication.
For more details regarding eutrophication, visit:
https://brainly.com/question/13232104
#SPJ5
laws of thermodynamics
Answer:
The Zeroth Law of Thermodynamics states that if two systems are in thermodynamic equilibrium with a third system, the two original systems are in thermal equilibrium with each other. The Second Law of Thermodynamics states that the state of entropy of the entire universe, as an isolated system, will always increase over time. The First Law of Thermodynamics states that energy can be converted from one form to another with the interaction of heat, work and internal energy, but it cannot be created nor destroyed, under any circumstances. The 3rd law of thermodynamics will essentially allow us to quantify the absolute amplitude of entropies.
please answer fast
difference between fish and frog on the habitat and structure of heart
Answer:
the answer is this
Explanation:
hope this help
good luck for your homework
Que tipo de ecosistema tienen los pingüinos emperador y Adelia?
Answer:
Los pingüinos Adelia viven en el continente antártico y en muchas pequeñas islas costeras circundantes. Pasan el invierno en alta mar en los mares que rodean el hielo antártico.
Los pingüinos emperador viven exclusivamente en entornos antárticos gélidos. Prefieren reproducirse durante el invierno, cuando el hielo se congela y se estabiliza. Estos pingüinos suelen crear colonias de reproducción en áreas cercanas a icebergs y acantilados helados, que los protegen de los peores vientos fuertes.
Explanation:
te ayuda esto?
14. Brainstorm and write at least 3 potential challenges or important points to consider when conducting the described
data collection.
When conducting an experiment, there are different aspects to consider, such as the question that drives to the reseach, the hypothesis, theoretical framework, variables involved -independent, dependent, and controll-, methodology, study groups, data analisys, among others.
In the exposed example, Pincky is lacking theoretical framework, defining which are the study groups, methodology to collect data, and a description of data analysis.
---------------------
The scientific method is a research method that consists of systematic observations, measures, experimentation, analysis, and verification of a hypothesis. It is based on two aspects: reproducibility, which is the capability of reproducing the experiment in any other place by any researcher, and refutability, which is the susceptibility to be refused.
When conducting an experiment, you need to consider,
• Definition and problem statement. The question for which there is not an answer yet.
• Hypothesis formulation. A hypothesis is a scientific conjecture, not verified, that requires corroboration.
• Data collection and analysis. This step involves testing the observations.
• Results
• Verification of hypothesis. This step involves the deriving of the working hypothesis.
• Discussion and Conclusion.
Previous knowledge about the study object is always required for a better understandig. A question the investigator wants to answer. The main goal of the study, which is basically what the investigator wants to find out. The researcher makes a hypothesis to predict what is going to happen. The experiment is to be performed to answer the question. The conclusions through which the hypothesis might be rejected or accepted.
--------------
So in this experiment there must be,
Theoretical framework, such as information about the species, life stage at which they begin chirping, about external factors that might affect it or benefit it, and etcetera.
The goal: To know how temperature affects cricket´s chirping
Hypothesis: Crickets chirp less frequently under cold temperature than under warm temperature.
Variables: Temperature → Independent
Chirp frequency → Dependent
Water and food supply, light exposure, refuge → Controlled
Study groups: group of crickets exposed to a warmer temperature
group of crickets exposed to a colder temperature
Methodology: Individuals analyzed should be in the same development stage, or at least be sexually mature. Two groups of 10 individuals each should be placed under the same conditions, excepting for temperature. One of the groups should be exposed to warmer temperatures and the other one to lower temperatures. Chirps should be recorded for a week.
Data analysis: Using the chirps records, the frequency can be measured for each group. Results should be compared using different statistical analyses.
Results: Results should be clearly exposed, using texts, charts, and graphs.
Discussion and Conclusion: Hypothesis acceptance or rejection. Discussion about the expected results against the observed ones.
-----------------------------
Related link: https://brainly.com/question/17645242
You are given an unknown animal to study in the laboratory. It is long and ribbonlike and appears to have some repeating units. You find it has three tissue layers, it does not have a digestive tract, and it has male and female reproductive structures in the same individual. This animal probably is __________.
Answer:
I reckon it's a tapeworm.
Explanation:
Answer:
tape worm
Explanation:
tape worm has all of the characteristics that have been described
What happens to the oxygen released during photosynthesis ?
Answer:
oxygen is released as a byproduct.
Explanation:
it breaks down glucose, releasing chemical energy and heat in the process of photosynthesis.
what is area? pls answer my question!
Here is your answer
Area is a measure of how much space there on a flat surface.
A woman took contraceptive pills to prevent pregnancy. The pill inhibits secretions of the Follicle Stimulating Hormone(FSH) from the pituitary gland. Explain the effects of taking contraceptive pills on the menstrual cycle.
I need an answer now... Pls help
lighter bleeding, and others may skip their periods entirely. An abnormal lapse in monthly menstruation
healthline
Determine the correct sequence of events for the production of a human protein in a bacterium. I. Target gene is inserted into a plasmid II. Bacterium replicates in a fermenter III. Bacteria produces target protein IV. Modified plasmid is inserted into bacterium
Answer:
I. Target gene inserted into plasmid
IV. Modified plasmid is inserted into bacterium
II. Bacterium replicates in a fermenter
III. Bacteria produces target protein
¿Cuántas partes se divide el cráneo?
Answer:
8
Explanation:
Los 5 huesos que forman la base del cráneo son el etmoides, el esfenoides, el occipital, el frontal emparejado y el temporal emparejado. La base del cráneo se puede subdividir en 3 regiones: las fosas craneales anterior, media y posterior.
Espero que esto ayude
In glycolysis, pyruvate, ATP, and NADH are produced. The lactic acid fermentation process uses the NADH molecule from glycolysis to convert pyruvate into lactate. During lactic acid fermentation, the NADH molecule transfers electrons to the pyruvate molecule and is converted to NAD+. How do you think this transfer of electrons helps the lactic acid fermentation process repeat itself? will give brainliest
Answer:
Explanation:
Fermentation does not involve an electron transport system, and no ATP is made by the fermentation process directly. Fermenters make very little ATP—only two ATP molecules per glucose molecule during glycolysis. ... During lactic acid fermentation, pyruvate accepts electrons from NADH and is reduced to lactic acid.
The NADH needed to convert pyruvate to lactate is supplied by this reaction of glycolysis, so the transfer of electrons helps to repeat the lactic acid fermentation process as lactate is reduced to pyruvate to regenerate NAD+ which is are reused for uninterrupted operation.
What is Glycolysis?Glycolysis is defined as the metabolic pathway that converts glucose to pyruvate where the free energy released in this process is used to form the high-energy molecule adenosine triphosphate and the lesser nicotinamide adenine dinucleotide. It is a sequence of ten reactions catalyzed by enzymes.
During glycolysis , ATP and NADH are produced where lactic acid fermentation process uses NADH molecule from glycolysis molecule to convert pyruvate to lactate. During lactic acid fermentation, NADH transfers its electron to pyruvate and is oxidized to NAD+ while pyruvate is reduced to lactate.
NAD+ assisted dehydrogenation and phosphorylation of glyceraldehyde-3-phosphate (G3P) to 1,3-biphosphoglycerate (1,3-BPG) is coupled to lactate production where NADH is supplied to convert pyruvate to lactate, hence, the transfer of electrons helps the lactic acid fermentation process to repeat itself as the reduction of pyruvate to lactate regenerates NAD+ which is reused for uninterrupted operation
Thus, the NADH needed to convert pyruvate to lactate is supplied by this reaction of glycolysis, so the transfer of electrons helps to repeat the lactic acid fermentation process as lactate is reduced to pyruvate to regenerate NAD+ which is are reused for uninterrupted operation.
Learn more about Glycolysis, here:
https://brainly.com/question/15159050
#SPJ2
What is the central idea of Food Safety Myths Exposed?
Define hypothesis
Thx!
Answer:
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
"his ‘steady state’ hypothesis of the origin of the universe"
ASAP Determine whether the statement is true or false and why. “We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to a different period in time becoming more human-like the closer to the present they are, showing a clear evolution into humans.”
A. False, it should read “We have discovered no series of humanoid fossils that are similar to humans, showing a clear lack of any transitional fossils as evidence of human evolution”
B. True
C. False, it should read “We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to a different period in time becoming less human-like the closer to the present they are, showing a clear evolution away from humans.”
D. False, it should read “We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to the same period in time, showing that many human-like species existed at once, but all went extinct.”
The statement is true.
Human evolution is a scientific term that refers to the process of biological evolution of the human species from its ancestors to the present.
The current knowledge of human evolution is the result of the convergence of various sciences such as:
Genetics.Physical anthropology.Paleontology.Geochronology.Archeology.Linguistics.The results of various studies relate the current human species as a result of multiple evolutionary processes of hominimus species, ardipithecus, australopithecus, and homo that through time improved different aspects until reaching the human species that exists today.
According to the above, what is described in the fragment presented is true because it presents a correct version of what happened in human evolution. Meanwhile, options A, C and D are incorrect because they do not present correct information regarding human evolution.
Learn more in: https://brainly.com/question/13492988
Mendel always got close to a 9:3:3:1 ratio for phenotypes in the F2 generation of any dihybrid cross. If false, make it a correct statement
a. True
b. False
Answer:
True
Explanation:
It is true that Mendel always got close to a 9:3:3:1 ratio for phenotypes in the F2 generation of any dihybrid cross. This validates his law of independent assortment of genes.
The 9:3:3:1 is usually gotten from any dihybrid cross of F2 generation. The results given are always 9 offsprings containing dominant traits, 3 offsprings each which possess a dominant and recessive trait and 1 offspring with a recessive trait.
Which of the following is the primary method of controlling citrus canker?
quarantine and destruction of infected plants
treatment with fungicides
genetic modification of plant stock
treatment with herbicides
Answer:
genetic modification of plant stock
You are conducting research into the effects of certain chemicals being dumped into lakes on the populations living in the lakes. Which of the following metrics is NOT used to measure populations? A. The growth rate of the population B. The density of the population C. The rate of food consumption of the population D. The size of the population
Answer:
B. The density of the population.
Explanation:
Earth is heated by global warming how Ian the water cycle affected global warming
Answer:
The heat increases the rat of the water making it easier for the water to turn onto vapor
Explanation:
Answer:
[tex]\boxed{\mathrm{view \: explanation}}[/tex]
Explanation:
As the global temperatures increases, more evaporation and precipitation will be the result. Hence, speeding up the water cycle.
At higher temperatures, there is more evaporation from land and sea into the atmosphere. Since the air gets warmer, it can hold more water vapor, this can lead to high rainstorms or precipitation.
How are photosynthesis and cellular respiration similar?
A. Both processes produce oxygen and glucose?
B. Both processes and release energy
C. Both processes involve energy-carrier molecules
D. Both processes produce oxygen
Answer:
The two processes are similar in that they both produce energy, albeit in two different forms. ... The win-win of the two processes is that they both provide each other with the necessary ingredients for the process to take place: glucose and oxygen for cellular respiration, carbon dioxide and water for photosynthesis.
Read the paragraph. [1] Our house was once a stop on the Underground Railroad. [2] It was common for an enslaved person to stop there on their way to the North. [3] The Underground Railroad were a network of hiding places. [4] The cellar beneath our house has a secret door that was installed to trick slave catchers. Which sentence has a subject-verb agreement error? sentence 1 sentence 2 sentence 3 sentence 4
Answer:
sentence 3
Explanation:
edge 2020
In sentence 3 'The Underground Railroad were a network of hiding places' a subject-verb agreement error is observed.
What is a subject-verb agreement?In a sentence when the subject of the sentence does not accept in number with the verb, the sentence misses subject-verb agreement.
In the given sentence 'The Underground Railroad were a network of hiding places' the verb “were” is not matching the subject, it is a subject-verb agreement error.
There would be, 'was' is used as a verb in sentence three, correctly sets the subject-verb agreement. The subject of this sentence is the singular “one,” not the plural “Railroads.” This suggests the verb should also be singular.
Therefore, sentence three correctly depicts the subject-verb agreement error.
Learn more about subject-verb agreement, here:
https://brainly.com/question/30958919
#SPJ7
Evaluate this statement: Gene flow increases the genetic divergence of populations. Evaluate this statement: Gene flow increases the genetic divergence of populations. This statement is true. This statement is false. Gene flow is not able to influence the genetic divergence of populations. This statement is false. Gene flow reduces the divergence of populations. This statement is false. Gene flow increases the number of genes in populations.
The correct answer is C. This statement is false. Gene flow reduces the divergence of populations.
Explanation:
In biology and related areas, genetic divergence occurs if populations with a common ancestor develop unique traits, which are the result of genetic changes over time. On the other hand, gene flow occurs when traits including genes flow from one population to another, usually because the populations are in contact. In this context, gene flow reduces divergence because if genetic material flows between populations is less likely each population can develop unique traits, instead the populations involved will have similar traits after some time.
The correct answer is C. This statement is false. Gene flow reduces the divergence of populations.
The following information should be considered;
In terms of biology and related areas, genetic divergence arise at the time when the populations are with a common ancestor that created unique traits, due to this there are genetic changes over time. While gene flow arise at the time when traits involved genes flow from one population to another, normally due to the populations are in contact. In this given situaton, gene flow reduces divergence since genetic material flows between populations is less likely every population can create unique traits, rather the populations involved will have similar traits.Learn more: https://brainly.com/question/5303391?referrer=searchResults
Which type of microscope would be the best tool to use to view the surface of a bacterial cell? Why?
Answer:
Electron Microscope
Explanation:
The maximum theoretical resolution of images created by light microscopes is ultimately limited by the wavelengths of visible light. Most light microscopes can only magnify 1000×, and a few can magnify up to 1500×, but this does not begin to approach the magnifying power of an electron microscope (EM), which uses short-wavelength electron beams rather than light to increase magnification and resolution.
-The electron microscope can achieve a much greater resolution than that obtained with the light microscope because the wavelength of electrons is shorter than that of light.
An Electron microscope is the type of microscope that would be the best tool to use to view the surface of a bacterial cell.
What is a Microscope?A microscope may be defined as an instrument that utilizes the arrangements of lenses to make an enlarged image of a small object.
An Electron microscope produces a higher resolution of bacterial cells as compared to a standard light microscope. This is because electrons possess a much shorter wavelength than visible light.
Therefore, the correct answer to this question is an Electron microscope.
To learn more about an Electron microscope, refer to the link:
https://brainly.com/question/2845212
#SPJ2
Your question is incomplete, but most probably your full question is as follows:
Which type of microscope would be the best tool to use to view the surface of a bacterial cell? Why?
Light microscopeElectron microscope.Fluorescence microscopes.We use electrical devices that produce motion, light, and sound. Which aspect of energy explains why these devices are possible?
Answer:
The suns energy or the solar energy
Explanation:
PLEASEEE HELP!!! Can someone please help me with this question
Answer:
The answer is
Explanation:
The particle is a virus because it has genetic information and can infect humans.
Hope this helps....
Have a nice day!!!!
Answer:
A
Explanation:
A field of sunflowers facing the sun is an example of
Answer:
Phototropism
Explanation:
Phototropism. Although both types of movement orient plants toward a light source, heliotropism is not the same as phototropism. Phototropism is the term that describes the growth of a plant toward any light source.
Answer:
Phototropism. Although both types of movement orient plants toward a light source, heliotropism is not the same as phototropism. Phototropism is the term that describes the growth of a plant toward any light source.
Explanation:
Image result for A field of sunflowers facing the sun is an example of
Continuously facing towards the east also helps the flowers to heat up quickly. This gives them an advantage in pollination, as warm flowers attract insects. Therefore, in the plant's interest, the flower always faces the sun and is therefore always clearly visible to these important pollinators.
what things make profession of different level
Answer:Alchemy. The best companion for this profession is Herbalism, as early alchemy relies almost exclusively on herbs for the potion... THEIR ARE DIFFERENT KIND OF LEVELS ALSO AND THEY ARE AS FOLLOWS:
Entry-level.
Intermediate.
Mid-level.
Senior or executive-level.
MAY IT'S HELPFUL FOR U MATE
Which statement is always true when describing sex-linked inheritance? It results in a dominant trait. The alleles are found on the X or Y chromosome. The resulting trait is influenced by multiple alleles. It is affected by alleles on at least three different chromosomes.
Answer:
the second one
Explanation:
there are only 2 sex linked chromosomes and that is X and Y
The true statement when describing sex-linked inheritance is ; ( B ) The alleles are found on the X and Y chromosome
The alleles responsible for reproductive inheritance from parents to offspring is contained in the X and Y chromosome of the reproductive gametes.
The female gametes contains double X chromosomes while the male reproductive gametes contains one X and one Y chromosomes. The alleles that are responsible for inheritance ( i.e. the sex of the offspring ) are contained in this chromosomes.
Hence we can conclude that The true statement when describing sex-linked inheritance is the alleles are found on the X and Y chromosome.
Learn more : https://brainly.com/question/24395447
¿Qué proceso debe realizar un organismo para perpetuarse a través del tiempo?
Answer:
evolución
Explanation:
When many nucleotides link together, they form a biomolecule responsible for storing genetic information called a
Group of answer choices
protein.
nucleic acid.
retinal.
carbohydrate.
When many nucleotides link together, they form a biomolecule responsible for storing genetic information called nucleic acids. Thus, the correct option is B.
What are Nucleotides?Nucleotides may be defined as the basic unit of the polynucleotide chain of nucleic acids such as DNA or RNA. Each nucleotide is composed of three components. They are as follows:
A nitrogenous base.A pentose sugar (ribose in the case of RNA, and deoxyribose in the case of DNA).A phosphate group.Nucleotides are the monomers of nucleic acids. Each nucleotide is joined together by covalent bonds known as phosphodiester linkage. This linkage is present between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar of next nucleotide.
Therefore, nucleic acids are formed when many nucleotides link together which are responsible for storing the genetic information.
To learn more about Nucleotides, refer to the link:
https://brainly.com/question/10874360
#SPJ2