Why KOH solution is kept in the test tube inside the air tight conical flask while doing the experiment of respiration of seeds?

Answers

Answer 1

Answer:

It is kept inside to absorb the CO2 released by the germinating seeds.

Explanation:

It means it will create a cycle for the flask. So, an equal volume of water rises up in the tube.

Hope it helps.


Related Questions

Explain how is it possible to have twins that are not identical​

Answers

Fraternal (dizygotic) twins come from 2 different fertilized eggs that both grow in the mother's womb. They have different DNA (2 eggs from the mother, 2 sperm from the father) and are not identical, although they often look alike.

Identical (monozygotic) twins come from one fertilized egg that has split in two. These twins share the same DNA and are completely identical.

Identical twins develop from the same egg and sperm,the embryos split and form identical twins ,they are the same sex. But some are fraternal twins, they develop with two diferent sets of sperm and eggs by the same parents. They can be from diferent, this is like having diferent babies at the same time.

Explain the effect of temperature and pH on enzyme action.

Needs to be done ASAP.

Answers

Answer:

enzymes loose their form in both unsuitable ph and temprature.

Explanation:

at very high tempratures enzyme molecules denatures due to high speed movements, at low tempratures enzymes works too slow to be useful enough.

low ph solotions contain lot of H+  and high ph solutions have few H+ , and the number of these H+ ions have polar effects on enzymes.  some Enzymes like pepsin works perfect in acidic environment ( ph=2)  while others might work at  high ph  or average ph( like Trypsin  works well at ph=7).

Polar bears feed on seals. So, polar bears and seals share a . Climate change has caused ice caps to melt in colder regions where polar bears live. This change has caused them to hunt less. This situation will lead to .

Answers

Polar bears and seals are animals that share a prey-predator relationship, whereas climate change causes less biomass at the quaternary level.

What is the prey-predator relationship?

The prey-predator relationship is s type of ecological association where one species is hunted (the prey) by another species.

Moreover, climate change is well known to produce global warming and melting ice on the Earth's poles.

In conclusion, polar bears and seals are animals that share a prey-predator relationship, whereas climate change causes less biomass at the quaternary level.

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What is the end product of the process of respiration? *

A. glucose and oxygen
B. water and carbon dioxide

Answers

Answer:

B. carbon dioxide and water

Explanation:

Respiration is a process that animals and plants undergo to create energy to grow, move and sustain life.

The equation for cellular respiration is:

glucose + oxygen —> ATP + carbon dioxide + water

The organisms use glucose from food and oxygen to create ATP (useable energy), carbon dioxide and water.

Therefore, the answer is B. Carbon dioxide and water. Glucose and oxygen are not the end results, they are used to make the end results.

Answer:

B. water and carbon dioxide

Two black-fur mice are bred, and have the litter shown below. What is the most likely explanation for the presence of the white-fur offspring?

Answers

Answer:

an alike gene I think idk

Answer:

Both of the parents are heterozygous.

Explanation:

What might happen to the organisms in the food web below if the number of phytoplankton and vegetation drastically decreased?

Answers

Answer:

i don't now exactly how to answer this when theres' no food chart however as the vegetation and phytoplankton drastically decrease everything decreases. This is because the producer the bottom of the food chain also known as vegetation is the prime source of energy in every food chain. when there's scarce amounts of producers a domino  affect will occur.  There will be no food for the first consumers to eat leading their population to decrease and the animals that feed off them will decrease then the animals that feed of them will decrease and so on until the organisms of the food web die out.

What occurs during a decomposition reaction?
New compounds are formed by chemical bonding
The components of several molecules recombine to form new molecules,
A compound partitions into its components,

Answers

Answer:

A compound partitions into its components,

Explanation:

Decomposition reaction is a type of chemical reaction occur when compounds partition of breakdown into new components or elements.

An example is the decomposition of hydrogen peroxide. Hydrogen peroxide decomposed to water and oxygen. Another example is the decomposition or breakdown of water into hydrogen and oxygen.

Answer:

A compound partitions into its components

Explanation:

Which best describes a virus

Answers

Answer:

Viruses are nonliving and infect host cells.

Answer:

A virus is an infectious agent and it only spreads inside living organisms. They can attack anything that is living... animals, plants, people, ecs

Explanation:

Question 9
Which of the following can be broken down during cellular respiration to make ATP?
a. proteins
b. lipids
c. saccharides
d. a and b
e. a, b, and c

Answers

Answer:

lipids (i think) :))

Explanation:

Computers would also help kids apply for schools and jobs.
Which of the following is relevant evidence supporting the
claim?
Students who want to go to Brentview
Arts must fill out an online application.
Our parents say Brentview Arts
Magnet School is one of the best
schools in the neighborhood.
Many of us plan to look for part-time
jobs in the summer,
The school also asks for
recommendations, but these can be
sent in by regular mail.​

Answers

Answer:

students who want to go to Brentview Arts must fill out an online application

Explanation:

if the only way to get into Brentview Arts is by doing an application online, then computers would help those students. They can't send it through the mail so the computer would be their only resource

Aerobic Respiration takes place in the _________.

A. molecules
B. mitochondrion
C. stomata

Answers

Answer:

B

Explanation:

The structure of the mitochondrion is key to the process of aerobic (in the presence of oxygen) cellular respiration, especially the Krebs cycle and electron transport.

B. mitochondrion

The reaction is called aerobic respiration because oxygen from the air is needed for it to work. Energy is released in the reaction. The mitochondria , found in the cell cytoplasm, are where most respiration happens.

2 Points
What is the purpose of the Bill of Rights?
O A. To persuade Great Britain to change its policies
O B. To inform the public about the king of England's crimes
O C. To explain the rights of citizens of the United States
O D. To ask people to become citizens of the United States
SUBM

Answers

O C. To explain the right of citizens of the United States

The body needs to use anaerobic respiration during ___________

Answers

The body needs to use anaerobic respiration during high intensity exercises when there is a shortage of oxygen

Answer:

hard exercise

Explanation:

The body needs to use anaerobic respiration during hard exercise.

Anaerobic respiration transfers energy from glucose to cells. It occurs when oxygen is not present. It transfers large amounts of energy quickly.

How could a model of meiosis be useful to scientists or to science students?

Answers

Answer:

YOUR ANSWER IS

Explanation:

to use a hand on method to develop an understanding of the mechanisim of meiosis using an organisum

As newts' poison became more toxic, the garter snake's resistance to it became more efficient. This is an example of
convergent evolution
coevolution
divergent evolution
adaptive radiation​

Answers

Answer:

coevolution

Explanation:

As newts' poison became more toxic, the garter snake's resistance to it became more efficient. This is an example of coevolution.

What kind of waves are present during an earthquake?

Answers

Answer:

Seismic Waves (S-Waves) and Primary Waves (P-Waves)

Explanation:

Earthquakes produce three types of seismic waves: primary waves, secondary waves, and surface waves. Each type moves through materials differently. the waves can also reflect or bounce off boundaries between different layers.

How are rna and dna used to make proteins

Answers

Answer:

During the process of transcription, the information stored in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus. ... A type of RNA called transfer RNA (tRNA) assembles the protein, one amino acid at a time.

hope it helps : )

Explanation:

how do apple and pinaples grow

Answers

Answer:

apples grow on a tree, so do pineapples i think

Explanation:

Describe step by step, with your own words, the process of replication of a double strand of DNA.

Answers

Answer:

replication. DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

Explanation:

Which government agency worked with the US Army to get samples of the penicillin mold​

Answers

Answer:

The US Department of Agriculture worked with the US Army to get samples of the penicillin mold​

Answer:

akjdcbflaksjdfkshvishzcvkbsidvhishvozshvzshcxv next time answer properly

Explanation:

Which DNA fingering technique examines the length variation of DNA repeat sequences in human DNA?

A) VNTRs (variable tandem repeats)

B) PCR (polymerase chain reaction) analysis

C) STRs (short tandem repeats)

D mtDNA (mitochondrial DNA) analysis ​

Answers

Answer: The question is incorrect, below is the correct question

Which DNA FINGERPRINTING technique examines the length variation of DNA repeat sequences in human DNA?

The correct answer to the question is option D

mtDNA (mitochondrial DNA) analysis

Explanation: DNA fingerprinting technique is a laboratory technique used by geneticists.it entails placing of DNA samples into wells,these wells are then placed in a slab of gels and thereafter passing a current through the gel.This is done to ascertain the uniqueness of a DNA pattern and thus be able to differentiate people of same species.

There are several methods of DNA fingerprinting as outlined in the options given with the question.

In mtDNA (mitochondrial DNA) analysis,The Genetic samples are extracted from the biological materials, these samples extracted are total genomic DNA like hair,tooth or samples of blood, Several copies of these genomic DNA are then produced using a polymerase chain reaction and flanking primers inorder to examines the length variation of DNA repeat sequences in human DNA.

Answer:

D. Mitochondrial DNA Analysis

Explanation:

Edg 2021

Many functions in the body are controlled by
special compounds. Which statements about
these compounds do you think are true? Check
all that apply.
The body can make all of the compounds it
needs.
The body gets energy from some
compounds.
Some compounds determine physical
characteristics.
DONE

Answers

Answer:

The body gets energy from some compounds.Some compounds determine physical characteristics.

Answer:

its b and c

Explanation:

i just did it

which statement best describes how genes are able to produce a organism's traits? A. Genes have versions called alleles, which produce different traits. B. Genes exit the nucleus and go to ribosomes, where proteins form. C. Genes contain codes that specify proteins, which produce traits. D. Genes unwind and become templates, where amino acids can line up.

Answers

Answer:

C

Explanation:

The genes contain codes that specify proteins, which produce traits.

Genes contain codes that specify proteins, which produce traits best describes how genes are able to produce a organism's traits.

What is a gene?

Genes are segments of DNA that contain the instructions for making proteins, which are complex molecules that perform a wide variety of functions in the body. Proteins are made up of chains of amino acids, and the specific sequence of these amino acids is determined by the code contained in a gene. Different versions of a gene, called alleles, can produce different sequences of amino acids and therefore different proteins, which can lead to different traits in an organism.

Genes are found in the nucleus of cells, and the process of making proteins begins when a gene is transcribed into a molecule called RNA. This RNA molecule exits the nucleus and goes to ribosomes, which are the site of protein synthesis. At the ribosomes, the RNA molecule serves as a template for the synthesis of a protein, with the specific sequence of amino acids being determined by the code contained in the RNA molecule. The protein is then folded into its characteristic shape, which allows it to perform its specific function in the body.

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A mining company is interested in monazite, a mineral substance that forms in igneous rock in Earth’s interior. They think they found a lot of monazite in a sedimentary rock formation at Earth’s surface. Could this really be monazite? If so, how could the monazite have become part of sedimentary rock?

Answers

Answer:

Yes, it could have been monazite.

Monazite could have become part of sedimentary rock because it is formed during the metamorphosim of clastic sedimentary rocks. It is a resistant minerals that is found in weathered rocks debris which become concentrated and they are part of the soils and sediments found near weathered rocks.

Explanation:

Monazites are phosphate minerals that are found im small grains as accessory in igneous rocks and sedimentary rocks. It is formed during the crystallization of igneous rock and metamorphosim of clastic sedimentary rocks.

It is a resistant minerals that found in weathered rocks debris and become concentrated in sediments near weathered rocks.

Only one ______ can be explored in an experiment.

Answers

Answer:

Multiple answers

Explanation:

Cells,

E.g. onion cell

Liquids

(Perfumes h how they work)

Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law? Explain your response.

Answers

Yes. Scientific laws are established statements, based on repeated experiments or observation of a particular scenario or natural events while a science theory are events or explanation of the natural world that can be repeatedly tested and verified using scientific method. That is, for it to be a Scientific Theory we must be able to test and verify it using scientific methods and for it to be a Scientific Law it must have been tested and verified repeatedly using scientific methods. Cell  theory is a tested and verified experiment

Why does the DNA need to be extracted from a cell before it can be analyzed?

Answers

Answer:

To study the genetic causes of disease and for the development of diagnostics and drugs. And detecting bacteria and viruses in the environment and for determining paternity.

science question help?

Answers

Answer: The answer for question 8 would be C and the answer for question 6 would also be C.

Explanation: This is because although both the focus and epicenter describe where the earthquake was, the focus refers to the actual area on the fault that is underground and the epicenter refers to above ground.

match each part of a cell to its structural features.

1.lager size in plant cells----->
2.salt and water base----->
3.grainy appearance----->
4.permeable and flexible---->

a.cytoplasm
b.cell membrane
c.rough endoplasmic reticulum
d.vacuole

Answers

Answer:

1)vacuole covers most part in a plant cell

2)cytoplasm is a salty and water base

3)rough endoplasmic reticulum has a grainy appearance

4)The cell membrane is flexible and semi-permeable

Answer:

)vacuole covers most part in a plant cell

2)cytoplasm is a salty and water base

3)rough endoplasmic reticulum has a grainy appearance

4)The cell membrane is flexible and semi-permeable

Explanation:

Based on the genotype of AB blood, what relationship do the A and B genes have?
A is recessive.
B is recessive.
They show incomplete dominance.
They are codominant.

Answers

Answer:

They are codominant.

Explanation:

A and B are  both expressed , when they are both inherited.

Answer: PLATO answer:

They are codominant

Explanation: The A and B antigens are equally present on the red blood cells, so the relationship of the A and B genes is codominant.

Other Questions
Sugar, orange juice, and ice are all examples of matter.Which is true about all three? A. They are in the liquid state. B. They are made of particles too small to be seen. C. They evaporate when they are combined with water. D. They are made of the same materials. What is the formula to find the area of a triangle That's so not true! This test can't have anything to do with my ability to attract women!" Tacettin protests. Tacettin is disputing (arguing against) the test's ________. Entries for Issuing Bonds and Amortizing Discount by Straight-Line Method On the first day of its fiscal year, Chin Company issued $16,600,000 of five-year, 11% bonds to finance its operations of producing and selling home improvement products. Interest is payable semiannually. The bonds were issued at a market (effective) interest rate of 12%, resulting in Chin Company receiving cash of $15,989,036. a. Journalize the entries to record the following: Issuance of the bonds. First semiannual interest payment. The bond discount amortization, using the straight-line method, is combined with the semiannual interest payment. (Round your answer to the nearest dollar.) Second semiannual interest payment. The bond discount amortization, using the straight-line method, is combined with the semiannual interest payment. (Round your answer to the nearest dollar.) For a compound transaction, if an amount box does not require an entry, leave it blank. Round your answers to the nearest dollar. Please solve the following inequality 2(3 - x) 14 I NEED HELP ASAP PLSSS HELP ME EASY QUESTIONS Memories of a MemoryHave you ever witnessed something amazing, shocking or surprising and found when describing the event that your story seems to change the more you tell it? Have you ever experienced a time when you couldn't really describe something you saw in a way that others could understand? If so, you may understand why some experts think eyewitness testimony is unreliable as evidence in scientific inquiries and trials. New insights into human memory suggest human memories are really a mixture of many non-factual things.First, memory is vague. Imagine your room at home or a classroom you see every day. Most likely, you could describe the room very generally. You could name the color of the walls, the floors, the decorations. But the image you describe will never be as specific or detailed as if you were looking at the actual room. Memory tends to save a blurry image of what we have seen rather than specific details. So when a witness tries to identify someone, her brain may recall that the person was tall, but not be able to say how tall when faced with several tall people. There are lots of different kinds of "tall."Second, memory uses general knowledge to fill in gaps. Our brains reconstruct events and scenes when we remember something. To do this, our brains use other memories and other stories when there are gaps. For example, one day at a library you go to quite frequently, you witness an argument between a library patron and one of the librarians. Later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk rather than the actual participant simply because it is recreating a familiar scene. In effect, your brain is combining memories to help you tell the story.Third, your memory changes over time. It also changes the more you retell the story. Documented cases have shown eyewitnesses adding detail to testimony that could not have been known at the time of the event. Research has also shown that the more a witness's account is told, the less accurate it is. You may have noticed this yourself. The next time you are retelling a story, notice what you add, or what your brain wants to add, to the account. You may also notice that you drop certain details from previous tellings of the story.With individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true. Did you really break your mother's favorite vase when you were three? Was that really your father throwing rocks into the river with you when you were seven? The human brain may be quite remarkable indeed. When it comes to memory, however, we may want to start carrying video cameras if we want to record the true picture.Part A and Part B below contain one fill-in-the-blank to be used for all three question responses. Your complete response must be in the format A, B, C including the letter choice, commas, and a space after the commas.Part A:Which of the following best summarizes the main point of the essay "Memories of a Memory"?Fill in blank 1 using A, B, or C.Humans cannot recall their earliest memories accurately.Humans have interesting brains that do many things to memories.Humans have trouble recalling details of spaces.Part BSelect one quotation from the text that supports your answer to Part A. Add your selection to blank 1 using D, E, or J.With individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true.You may understand why some experts think eyewitness testimony is unreliable as evidence in scientific inquiries and trialsJ. Research has also shown that the more a witness's account is told, the less accurate it is.Select one quotation from the text that supports your answer to Part A. Add your selection to blank 1 using F, G, or H.F. New insights into human memory suggest human memories are really a mixture of many non-factual things.G. The image you describe will never be as specific or detailed as if you were looking at the actual room.H. In effect, your brain is combining memories to help you tell the story.Answer for Blank 1: In the short-run aggregate demand and supply model, one important difference between monetary and fiscal policy is that monetary policy:_______. a. influences aggregate supply but fiscal policy influences aggregate demand. b. has shorter lags than fiscal policy, so monetary policy may impact the economy more quickly than fiscal policy.c. influences aggregate demand but fiscal policy influences aggregate supply. d. has longer lags than fiscal policy, so fiscal policy may impact the economy more quickly than monetary policy. In a paragraph of at least three sentences, explain the mood of this excerpt from Little Brother. Provide details from the text to support your answer. We felt it first, that sickening lurch of the cement under your feet that every Californian knows instinctively*earthquake*. My first inclination, as always, was to get away: "when in trouble or in doubt, run in circles, scream and shout." But the fact was, we were already in the safest place we could be, not in a building that could fall in on us, not out toward the middle of the road where bits of falling cornice could brain us. Earthquakes are eerily quietat first, anywaybut this wasn't quiet. This was loud, an incredible roaring sound that was louder than anything I'd ever heard before. The sound was so punishing it drove me to my knees, and I wasn't the only one. Darryl shook my arm and pointed over the buildings and we saw it then: a huge black cloud rising from the northeast, from the direction of the Bay. (10 points) explain why flowers are important to a plant ? What can be inferred about the Earl of Tennessee? *He is not marriedHe has two little black dogsHe is happily marriedHe works nights Wuthering Heights: Do you agree or disagree with these statements? Explain why!1. Heathcliff was truly wicked with no good qualities.2. Although Heathcliff is often violent, we still feel sympathy for him.3. Catherine married Edgar for all the right reasons.4. Hindley was just a bad person as Heathcliff.5. Ellen Dean was the nicest person in the story. Which element is necessary to complete the graphic organizer ______ + independent clause = compound sentence There are _______ different amino acids used to make proteins, and different condones code for different amino acids. A rectangle has a length of 6 inches, and a widthof 4 inches. What is the area of this rectangle Drivers should watch for individuals who are blind at:-bus stops-all of the answers-intersections-business areas Select all the equations where y=10equals, is a solution.Choose 2 answers:Ay+11=22B8=18-yC60=6yDy/5=4E10y=20 Read the article and use the information to answer the following questions.Rainforest BiomesMatch the characteristic of the biome to the type of rainforest.weather year round is warm and humidreceives about 200 inches of rain a yeartrees are mostly coniferousgreatest variety of uniquely adapted organisms La soeur means the... I would like to know how to solve this please. Use what you learned about tides to complete the sentences. The pull of gravity of causes Earth's crust and oceans to bulge. This creates high and low tides. Tides occur when the Sun, the moon, and Earth are nearly aligned. Tides happen when the Sun and the moon are at right angles to each other. Each of these special tides happens in a lunar cycle.