Rapid growth of cells is observed in tumors. One hypothesis of rapid tumor growth is that the creation of new cells uses old cells only as a scaffold to promote rapid growth similar to how crystal solids form. In this hypothesis, new cellular material is not created from preexisting cells. First a new nucleus of a cell attaches to the preexisting cells followed by the formation of the cytoplasm and lastly a cellular membrane forms around the cytoplasm-nucleus complex. This process can only happen if there is a pre-existing lattice network of cells that can function as a site of nucleation. Group of answer choices This hypothesis is not supported by cell theory because new cells are not created from older, preexisting cells. This hypothesis is not supported by cell theory because cell walls are required to grow new cells

Answers

Answer 1

Answer:

This hypothesis is not supported by cell theory because new cells are not created from older, preexisting cells.

Explanation:

This hypothesis does not agree with cell theory because it states that new cells do not need pre-existing cells to be created. Cell theory states that cells are generated from old, pre-existing cells, which go through the process of cell division to create new cells.

We can see the disagreement of this hypothesis with the cell theory in the lines:

" In this hypothesis, new cellular material is not created from preexisting cells."


Related Questions

EX: Polymerization and the breakdown of a polymer are two opposite reactions. What role does a water molecule play in both of them?

Answers

Answer:

A water molecule is released during polymerization, which helps in the formation of a bond, and it is added during the break down of a polymer, which helps in breaking the bond.

What is ballistochory?

Answers

Answer:

Ballistochory. So it is called when the seeds are forcefully or explosively spread. The aim is to "throw" the seed from the parent plant as far as possible.

Explanation:

This is what is known by the violent and explosive dispersal of the seeds. The aim is to "throw" the seed from the parent plant as far as possible. (This works because the wind resistance is not high for seeds.)

Answer:

the dispersal of seeds by force

Explanation:

Will give brainiest for the best detailed answer. Thanks a lot :)

Answers

WHAT HAPPENS TO OUR BODIES WHEN WE EXERCISE?

What is happening to her circulatory system?

When you exercise, or play football in this case, you are working your muscles and certain places in the body. When this happens, your muscles respire (burn the FOOD to produce ENERGY) more faster than they would normally, so the demand for OXYGEN and GLUCOSE is increased.

As the muscles are performing cellular RESPIRATION quicker than the norm, they need oxygen and glucose to reach them faster (glucose and oxygen are the components for cellular respiration), and also they need to get rid of their CO2 (products of cellular respiration are CARBON DIOXIDE and WATER) so the HEART is now pumping blood around the body at a faster rate in order to provide these cells with what they need. To summarize, the circulatory system has to work harder and faster during exercise to provide the cells at work with glucose and oxygen and to get rid of the waste carbon dioxide.

What is happening to her breathing system?

{Relates to explanation given} The requirement for oxygen is increased so now the respiratory system (in particular the LUNGS) have to work harder and faster to take in more oxygen and to exhale more CO2, thus you begin to breathe faster. To summarize, oxygen is inhaled quicker and carbon dioxide is exhaled quicker, therefore the rate of DIFFUSION is increased.

Diagram:

Draw picture of a girl playing football and then in the nest picture of her lungs and heart, you can also include arteries and the veins. Show how the lung and the heart work more harder during the exercise or when playing any sports

hope this helps.....

have a great day ahead :)

describe the effect of increasing the light intensity on the rate of photosynthesis in pelargonium with green leaves​

Answers

Increased light intensity, more energy for photosynthesis, more light dependent reactions occur

One difference between photosynthesis and cellular respiration is that cellular respiration:​

Answers

The main difference between photosynthesis and cellular respiration is that photosynthesis is an anabolic process, where the synthesis of organic compounds occurs, storing energy whereas cellular respiration is a catabolic process, where the stored organic compounds are utilized, producing energy.

how are haploid gametes formed through meiosis​

Answers

Gametes are an organism's reproductive cells. During meiosis, a diploid parent cell, which has two copies of each chromosome, undergoes one round of DNA replication followed by two separate cycles of nuclear division to produce four haploid cells.

Define the word Codon
Thank you!

Answers

Explanation:

a sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule.

Answer:

Condon is a city in, and the seat of, Gilliam County, in the U.S. state of Oregon. The population was 682 at the 2010 census. The city, with an historic main street along Oregon Route 19, is a farming and ranching community.

A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis. DNA and RNA molecules are written in a language of four nucleotides; meanwhile, the language of proteins includes 20 amino acids.

The second one is most likely to be correct

Hope this helps :> <3

what is Up-regulation

Answers

Answer:

The process by which a cell increases its response to a substance or signal from outside the cell to carry out a specific function.

I Hope this will help you if not so sorry :)

In the biological context of organisms' production of gene products, downregulation is the process by which a cell decreases the quantity of a cellular component, such as RNA or protein, in response to an external stimulus. The complementary process that involves increases of such components is called upregulation.

Which is a method that scientist used to determine the composition of earths layers

Answers

Answer:

Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers.

Explanation: GOOD LUCK

Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers

"A passive smoker will experience the similar effect as an active smoker" Do you agree with the opinion? Justify.​

Answers

No. Because the passive smoker doesn’t inhale.

Compare how the human body breathes in and out. Describe what happens to the ribcage, the diaphragm and chest volume. (6 marks) In this question you get marks for how well your answer is written. You will get marks for: spelling grammar  organising your ideas and information clearly using key scientific words.


Will give brainiest for best organised detailed answer. :)

Answers

•When we breathe in our rib cage swing upwards and outwards, diaphragm contracts and flattens, the expand and air is drawn in. The thorax also increases.
•When we breathe out our rib cage swing inwards and downwards, diaphragm relaxes and arches up, lungs become smaller and air is drawn out. The thorax size also decreases.
• During inhaling the concentration of oxygen is more
• During exhaling the concentration of carbon dioxide is more.

measurement plays an important role in our daily life.​

Answers

Answer:

Yes,measurement plays an important role in our daily life because we do various activities like export import selling and buying in our day to day life. These activities are impossible without measurement.

#(Please mark as brainliest (: )

Answer:

1. It makes buying and selling goods easier.

2. It helps to get the accurate amount of physical quantities.

3. It is important to perform experiments in a science laboratory.

4. It is important in laboratories for getting proper amount of medicines.

5. It is important in construction of roads, buildings, bridges, etc.

What factor can decrease the rate of a chemical reaction

Answers

Explanation:

The reaction rate decreases with a decrease in temperature.

Catalysts can lower the activation energy and increase the reaction rate without being consumed in the reaction.

Differences in the inherent structures of reactants can lead to differences in reaction rates.

Decrease in temperature

Many factors affect rigor mortis, such as the type of clothing the person was wearing. Experts from different sciences agree that the definition of death is the end of life. Blowflies are one of the first insects to arrive at a dead body and are very useful in determining the time of death. Livor mortis refers to the color of a dead body. The only two manners of death are natural death and homicidal death. Mechanism of death describes what has occured in the body to cause death. The presence of drugs in a corpse cannot be determined by a chemical analysis of larvae found feeding on the body. In the first 12 hours, a dead body cools about 1 degree F per hour. Within minutes of a death, certain insects are attracted by the smell of the first stages of decomposition. The Body Farm is a fictional account of the work of a country coroner.

Answers

Answer:

- Many factors affect rigor mortis, such as the type of clothing the person was wearing. True

- Experts from different sciences agree that the definition of death is the end of life. True

- Blowflies are one of the first insects to arrive at a dead body and are very useful in determining the time of death. True

- Livor mortis refers to the color of a dead body. True

- The only two manners of death are natural death and homicidal death. False

- Mechanism of death describes what has occured in the body to cause death. True

- The presence of drugs in a corpse cannot be determined by a chemical analysis of larvae found feeding on the body. True

- In the first 12 hours, a dead body cools about 1 degree F per hour. False

- Within minutes of a death, certain insects are attracted by the smell of the first stages of decomposition. True

- The Body Farm is a fictional account of the work of a country coroner. False

Explanation:

Death refers to the permanent cessation of the biological activities in an organism as a whole. Rigor mortis refers to a recognizable sign of death, which is caused by different changes in the muscles after death. Blowflies are insects that can be attracted by the smell of dead and decomposing bodies because they need to identify warm-moist and protein-rich sources to develop their eggs. Livor mortis is the red/blue/purple discoloration in the body skin after death. The manners of death can be divided into 1-accidental, 2-natural, 3-suicidal, 4-homicidal, and 5-undetermined. The mechanisms of death refer to the specific physiological derangements that can lead to the cessation of life (e.g., a heart attack), whose understanding can be essential to elucidate a criminal case. The presence of drugs in a dead body can be determined by an autopsy. The rate at which a dead body cooling depends on the relationship between the body temperature and environmental temperature (e.g, elevated body temperatures and cool environmental conditions are known to increase this value). A body farm can be defined as a research facility where the decomposition of dead bodies can be examined.

26._____The first trophic level is usually occupied by herbivores. 27.__True___It is possible for a plant to be a carnivore. 28._____A habitat refers to the role of a species in its ecosystem. 29._____Biotic factors include sunlight, soil, temperature, and water. 30._____A food web can be represented by many interconnected food chains. 31._____There are rarely more than four trophic levels in an ecosystem. 32._____Like water, energy is also recycled through an ecosystem.

Answers

Answer:

The correct answer is -

26. false

27. true

28. false

29. false

30. true

31. true

32. false

Explanation:

The first trophic level is usually primary producers and herbivores are the primary consumers placed in the second trophic level.

There are some plants that depend on insects and small organisms for their nutrition.

Habitat is the living area of an organism it can be understood as address.

Biotic factors are the living organisms of the ecosystem while sunlight, soil, temperature are abiotic factors.

A food web is complex as it is made up of several food chains interconnected.

Normally there are only three or four trophic levels in most of the ecosystem.

Energy is not recycled in ecosystems like water or carbon.

what is the shark's babies called?
please help me. ​

Answers

Answer:

A baby shark is referred to as a pup.

To my knowledge It is called a pup

OC (5) How do you know that the gas produced during fermentation is carbon dioxide (2)​

Answers

Explanation:

everything can be found in the picture

WILL GIVE BRAINLIST PLEASE HELPPPP
What is the difference between 1 unit of magnitude on the Richter scale?
100 times stronger
1000 times stronger
10 times stronger
1 times stronger

Answers

Answer:

10 times stronger

Explanation:

GIVE them BRAINLIST

( I WILL GIVE BRAINLIEST IF YOU GET IT RIGHT!!!!!)
Are sea sponges closer in relationship to humans, boxwood shrubs, paramecium, or moss? Explain using evidence to support your claim.​

Answers

Answer:

Humans

Explanation:

A new research now suggests that possibly the entire animal kingdom, including humans, shares important genetic mechanisms with sea sponges. Now published in the journal Science, the discovery has been made by a team of scientists led by Dr. Emily Wong from the Victor Chang Cardiac Research Institute and UNSW Sydney.

PLEASE HELP ME I NEED ASAP.
Complete the following table on the different types of microscopes.

Answers

Answer:

A compound light microscope is a microscope with more than one lens and its own light source. In this type of microscope, there are ocular lenses in the binocular eyepieces and objective lenses in a rotating nosepiece closer to the specimen.

The scanning electron microscope (SEM) produces images by scanning the sample with a high-energy beam of electrons. As the electrons interact with the sample, they produce secondary electrons, backscattered electrons, and characteristic X-rays.

Explanation:

Someone please help what goes with what


1. An atomic particle with a negative charge

2. An atomic particle with a positive charge

3. An atomic particle with no charge or neutral

Answers

Yellow is a proton
Blue is a neutron
Red is an electron

Answer:

yellow is a proton

blue is a neutron

orange is an electron

Explanation:

The neutrons and protons are in the center of the atom, and the electrons circle around the center.

In the _________________________were the absorption of nutrients takes place, the enzyme ___________________hydrolyses ___________________ into _________________________

A. small intestine -lipase-lipid-fatty acid and glycerol

B. mouth-salivary amylase-lipid-amino acid

C. small intestine-lipase-protein-amino acid

Answers

Answer:

A)

Explanation:

In the small intestine where the Absorption of nutrients takes place, the enzyme lipase hydrolyses lipid into fatty acid and glycerol

The bacteria chromosome is

Answers

one long, single molecule of double stranded, helical, supercoiled DNA. In most bacteria, the two ends of the double-stranded DNA covalently bond together to form both a physical and genetic circle
In most bacteria, the two ends of the double-stranded DNA covalently bond together to form both a physical and genetic circle.

Why do you think that Darwin's principle of natural selection was important and how did it relate to future ideas of biological evolution.

Answers

Explanation:

everything can be found in the picture

Through this process of natural selection, favorable traits are transmitted through generations.

Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.

What is speciation?Speciation, the formation of new and distinct species in the course of evolution. The species evolve by genetic modification.

To know more about evolution here

https://brainly.com/question/13492988

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Which event happens first when you get a splinter?
A. The white blood cells produce antibodies.
B. The damaged tissue releases chemical messengers.
O C. The white blood cells eat pathogens near the wound.
D. The damaged tissue swells and becomes painful.

Answers

Answer:

I believe it is B. The damaged tissue releases chemical messengers

Explanation:

This is because the chemicals of the so-called complement system start drilling holes into bacterial cell walls. Macrophages, big eater cells, devour any invaders they meet. This is to prevent furthur infection!

“Dear Basketball" by Kobe Bryant Analysis
+
Kobe says that basketball "asked for his hustle", but he "gave his heart because it came with so much
more". What could his heart give to the game of basketball that his hustle could not?

Answers

Answer:

He describes basketball as asking him for his “hustle.” Instead, he gave the sport his heart. The speaker worked hard because he wanted to do the game justice. He wanted to show his love for the sport because that's “what you do / When someone makes you feel as / Alive” as basketball made him feel.

describe Human Trafficking​

Answers

Explanation:

Introduction  Human trafficking is a group of crimes involving the exploitation of men, women and children for financial gains which is violation of fundamental human rights  Human trafficking is the 3rd largest international crime  Over one million people trafficked annually  Millions of men, women and children are victims of human trafficking  Human trafficking is a part of the larger problem of slavery

 human trafficking is when people are transported, by force or deception, to become enslaved  Traffickers use blackmail, abuse, and threats to force victims to comply with their wishes in the destination country  Usually caused by poverty/lack of economic opportunities, especially for women and children, and a demand for certain services in the destination country

(b) Explain clearly how the circulatory system and the respiratory system in the human body work together. ​

Answers

Answer:

The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.

Explanation:

Hope this is helpful.

Los gatos tienen muchas opciones para comer como ratones, peces, cucarachas, etc. Por ejemplo: Planta -> Ave -> Gato -> ??? ¡¿Quién mata al gato para comérselo?! POR FAVOR ESPARA UN PROYECTO DEL ORIGEN DEL GATO

Answers

Answer:

Pumas, lobos y coyotes, águilas, serpientes, halcones, búhos y perros.

Explicación:

Pumas, lobos y coyotes, águilas, serpientes, halcones, búhos y perros son los animales que matan al gato y se alimentan de ellos. Estos organismos son los depredadores de los gatos y dependen del gato y de algunas otras especies para cumplir con su requerimiento de alimento. Algunos animales matan directamente al gato a través de sus dientes fuertes, mientras que otros matan al gato a través del veneno que está presente en su boca.

Which of the following describes how the United Nations plans to correct the issue of deforestation?
by helping poor countries reach economic security
o by implementing small anti-climate change measures
by focusing on conditions within politically stable countries
o by imposing strict penalties on countries with poor environmental practices

Answers

Answer:

I think it is by implementing small anti-climate change measures but I'm not sure

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What are two different characteristics that scientists examine to classify living things?a. blood characteristics and naming characteristicsb.chemical characteristics and DNA characteristicsc.physical characteristics and chemical characteristicsd. physical characteristics and environmental characteristics A plaintiff filed a negligence action against two defendants in federal district court, invoking the court's diversity of citizenship jurisdiction. Prior to serving their answers, the defendants filed a motion to dismiss for lack of subject matter jurisdiction. The court denied the motion, concluding that subject matter jurisdiction was proper. The defendants then filed their answers responding to the merits of the complaint and denying negligence. The defendants' answers also contained motions to dismiss the action for lack of personal jurisdiction. Five weeks later, the defendants filed a motion to dismiss the action for improper venue. If the court determines that venue in fact is improper, how should the court rule on the defendants' venue motion Express in simplest form -45% in a sale, normal prices are reduced by 10%nathalie bought a pair of shoes in the sale for 54what was the original price of the shoes Anyone know this question If you horizontally stretch the linear parent function, f(x) = x, by a factor of 3,what is the equation of the new function?A. g(x) = x - 3B. g(x) = 3xO C. g(x) = 3 - xD. g(x) = 3 *SUBMIT Work outmandcfor the line:2y+3x=5 Thompson's experiments with cathode ray tube lead to the invention of what? write 20 abbreviation and words in full ( manuscript ) What is the area of a triangle in square units with the points (-3,-4), (8,-4), (-1,4) `show that the normal to the parabola y=8x at (2 4)meets the parabola again in(18, -12)` Find the value of y and show work Trnh by tiu lun ting HN nh th no? At the grocery store, 1 pound of grapes cost $3.50. At this rate, how much would 3 pounds cost? A merry-go-round at a playground is a circular platform that is mounted parallel to the ground and can rotate about an axis that is perpendicular to the platform at its center. The angular speed of the merry-go-round is constant, and a child at a distance of 1.4 m from the axis has a tangential speed of 2.2 m/s. What is the tangential speed of another child, who is located at a distance of 2.1 m from the axis? (a) 1.5 m/s (b) 3.3 m/s (c) 2.2 m/s (d) 5.0 m/s (e) 0.98 m/s Becky's statistics teacher was teaching the class how to perform the z-test for a proportion. Becky was bored because she had already mastered the test, so she decided to see if the coin she had in her pocket would come up heads or tails in a truly random fashion when flipped. She discretely flipped the coin 30 times and got heads 18 times. Becky conducts a one-proportion hypothesis test at the 5% significance level, to test whether the true proportion of heads is different from 50%. Which answer choice shows the correct null and alternative hypotheses for this test? Question 37 of 55 James buys headphones that cost $10.00. He pays 6% sales tax. How much does he pay for the headphones with tax? A. $11.60B. $10.60C. $12.00D. $6.00 1. What can communities do to help reduce crime in their area?2. What things do you think cause people to turn to crime? 3. Do you think prisons should train prisoners, so they can start a new career when they leave? ano anong mahahalagang katotohanan ang nagsiwalat sa huling kabanata ng noli me tangere? What is the domain of the function y=3 sqrt x?