Cancer is subject to evolution due to: Question 25 options: A) Gene flow B) Tumor cells experiencing a bottleneck event due to chemotherapy C) Natural selection and competition between cells of two different tumors D) Natural selection and competition between cells of the same tumor

Answers

Answer 1
B. Is some cancer cells are able to survive chemo, then those cells are able to divide/reproduce and pass the ability to survive chemo to the next generation of cells.

Related Questions


During photosynthesis,
is used to break water down into oxygen and hydrogen.

Answers

Answer:

yes it is correct answer ........

Which energy reactions occur in eukaryotic cells and are exact opposites of each other?

Answers

Answer:

Cell respiration and photosynthesis

Explanation:

In photosynthesis, organisms make high-energy compounds (glucose for example) by using carbon dioxide (CO2) and produce oxygen. In cellular respiration, organisms breakdown glucose and other compounds through consuming oxygen and produce CO2.

Which types of cells replicate using meiosis?

Answers

Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.

Write a one-paragraph (5-7 sentences) reflection on the dangers of drugs and how they can interfere with you achieving your goals.

Answers

Answer:

They can reflect on getting a Job and doing good in life, they could kill a person without them even knowing it. The dangers of drugs Is that they can mess up your life or it could make you so messed up things to yourself. Drugs are bad because they could make life worse, and they could hurt people around you or people you love, drugs can lower your chances of achieving your goals because you could easily get fired or you can lose your mind enough just not to know what you're doing.

Explanation:


How does meiosis most benefit a species?
It decreases the number of chromosomes.
It increases genetic variation.
It increases the number of chromosomes.
It increases mutations.

Answers

Answer:

It increases genetic variation.

Explanation:

Meiosis does not decrease the number of chromosomes nor increase the number of them, it merely splits them.

While it could increase mutations, this might not necesarily be a good thing.

However, it does increase genetic variation, especially during the process where crossing over occurs. Increased genetic variation is beneficial for the population for many reasons like higher resistance to certain diseases. Increasing genetic variation also makes a species look unique from other members of the species.

The cell membrane is known as the fluid mosaic model.

True
False

Answers

Answer: the answer is true

Print out the genetic code in the list of materials to answer this question.

Which amino acids are in the code AUGGUCGGU?


A)methionine, valine, and aspartic acid


B)methionine, valine, and glycine


C)arginine, histidine, and cysteine


D)methionine, glutamine, and alanine

Answers

Answer: methionine, vAline and glycine

Explanation:

What type of food do Decomposers eat?

Answers

my question keeps getting deleted but they basically eat things that are no longer living like no longer living plants and , animals no longer living

This shows a cell in a

A hypertonic
B isotonic
C hypotonic

Answers

[tex]\huge \bf༆ Answer ༄[/tex]

The Correct choice is ~

A. hypertonic solution

In a hypertonic solution, the concentration of liquid is higher in the solution as compared to that of concentration in the cytoplasm of cell, Therefore Osmosis takes place, causing the liquid present in the solution to move in the cell, and hence inflammation/ swelling occurs.

I hope it helped ~

help please this is about dna in biology

Answers

Answer:

That image is way too blurry to read. Can you comment what it says so I can put an appropriate answer?

Explanation:

Which of the following best describes daily temperatures in deserts? a. hot during the day and cold at night b. hot during the day and warm at night c. cool during the day and very cold at night d. they depend upon the type of desert and its location Please select the best answer from the choices provided A B C D

Answers

Letter "A" would be correct

Answer:

I think it's D..

Explanation:

There are different types of deserts.

MacArthur and Wilson found as distance from New Guinea __________ the number of bird species on Pacific Islands __________.

Answers

Answer:

MacArthur and Wilson found as distance from New Guinea increses the number of bird species on Pacific Islands decreases.

What is the most likely conclusion the botanist can make about the virus that is found to be infecting her orchids

Answers

Answer:

botanist sees that some of her orchids with a black fungus growing on their leaves also have small rotting spots, while other orchids in the atrium that lack the fungus appear healthy. What is the most likely conclusion the botanist can make about the virus

CAN SOMEONE PLEASE HELP!!!!!!!!!!

Rearrange the sentences into their most logical sequence to describe the process of energy extraction from glucose

Pyruvic acid passes from the cytoplasm into the mitochondrion.

A series of reactions break and rearrange carbon bonds to release energy and carbon dioxide.

Three molecules of ATP are produced with every pair of high-energy electrons that pass through the electron transport chain.

In total, about 36 ATP molecules are released from one molecule of glucose.

A small amount of energy is released when the bonds in a 6-carbon glucose are broken and rearranged into 3-carbon pyruvic acid molecules.

Answers

Answer:

A series if reaction break and rrarrange csrbon bonds to release energy ang carbon dioxide.

The correct sequence of energy extraction from glucose is 5, 1, 2, 3, 4 to complete the oxidation of glucose.

What is glycolysis?

Thus, the phases of cellular respiration should be performed in the following order: Krebs cycle, oxidative decarboxylation, electron transport chain, and oxidative phosphorylation are the steps in glycolysis.

The process of energy extraction from glucose:

When the bonds in 6-carbon glucose are broken and reorganized into 3-carbon pyruvic acid molecules, a little amount of energy is produced. Pyruvic acid enters the mitochondrion from the cytoplasm.

Carbon bonds are broken and rearranged in a sequence of events that release energy and carbon dioxide.

Every pair of high-energy electrons travels through the electron transport chain resulting in the production of three molecules of ATP. One glucose molecule releases roughly 36 ATP molecules in total.

Therefore,  the process of energy extraction from glucose start from pyruvate forming and end with the ATP formation.

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what do you expect to happen to our oak populations? Explain how this could affect other organisms in the ecosystem.

Answers

As the oak populations decrease, the herbivorous consumers that have their habitats on them will start to become extinct as they are introduced to an environment that they are not used to and unprepared to survive in. As oaks keep forests healthy by maintaining a richer mix of plants, insects, birds and other animals wherever they grow. They are a source of food and habitat which adds emphasis to their importance to wildlife.

come up with a question for an investigation that can be done at a forest preserve (make sure to include an independent and dependent variable) 15 pts

Answers

Answer: What are the most effective new chemical treatments of various invasive species?

Explanation:

independent variable: chemical treatments

dependent variable: the type of species

I might be wrong on the variables

D
Question 11
1 pts
A runner expends an average of 4 kcal per minute during a two hour run. She want to eat a meal of
50% energy from carbohydrate, 25% of energy from protein and 25% of energy from fat, how
much protein would their meal have to contain, in order to replenish their expended energy?

Answers

Given what we know about nutrition, we can confirm that the runner's meal would have to contain 30 grams of protein.

The runner in question wishes to complete a two-hour run while expending 4kcal or calories per minute, for a total of 480kcal. Furthermore, the runner wishes for only 25% (120kcal) of this energy to come from a source of protein.

Since every gram of protein adds 4 calories of energy to the meal, and we have to account for 120 calories, the runner will have to consume 30 grams of protein to achieve the desired results.

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Which organism receives the most energy in the food chain

Answers

Answer:

humans

Explanation:

Explain the difference between the inner core and outer core. What Earthly feature do they produce that protects Earth from solar weather?

Answers

The Earth core has two layers: the outer core, and the inner core. Moreover, the magnetic field protects Earth from solar weather.

The Earth's magnetic field is an invisible layer that protects life from the majority of the solar wind blast.

The magnetic field covers us from charged solar particles that crash into it and then flow around it.

Moreover, the Earth core has two layers: the outer core and the inner core, which are separated by a boundary known as the Bullen discontinuity.

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PLEASE HELP!!! 63 points.


Use the molecular structures to predict which of the six solutions will test positive for glucose. Write your prediction in the answer space. Provide the reasoning behind your prediction.

Answers

Answer:

need the picture

Explanation:

how many times do I have to repeat myself -_-

if you add 63 points each person will only get 32 points so add 63x2 instead anyways I cannot solve the answer without a picture :/

True or false, as density of ocean water increases, The speed of the ocean currents decreases

Answers

Answer: Very True

Explanation:

How is space exploration important to the economy?

Answers

Explanation:

Space exploration thus supports innovation and economic prosperity by stimulating advances in science and technology, as well as motivating the global scientific and technological workforce, thus enlarging the sphere of human economic activity.

which is true about a hypotonic solution? a. it has a higher concentration of wtwr and a lower concentration of solutes than another solution
b. ut has a higher concentration of solutes and a lower concentration of water than other solution
c. it has an equal concentration of water and solutes as another solution
d. it has more solutes than solvent than another solution

Answers

Answer:

A

Explanation:

A hypotonic solution has a lower concentration of solutes than another solution, but has more water.

What are the four types of physical hazards?
Select the 4 answer options that apply.

Extreme Temperature

Radiation

Vibration

Noise

Pathogens

Corrosive substances

Answers

Answer:

1st 4 are the physcal hazards

Explanation:

a)

b)

c)

d)

The four types of physical hazards are Extreme Temperature, Radiation, Vibration and Noise.  

What are Physical Hazards?

A physical hazard is an agent, factor or circumstance that can cause harm with contact. They can be classified as type of occupational hazard or environmental hazard.  

Physical hazards include ergonomic hazards, radiation, heat and cold stress, vibration hazards, and noise hazards.

Whereas, Corrosive substances comes into chemical hazards and Pathogens can be classified as biological hazards.  

Thus, the Extreme Temperature, Radiation, Vibration and Noise are the best four options as the type of physical hazards.

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Applying the systems thinking techniques, outline the practical steps that can be taken to address drought

Answers

Some practical steps to address drought may include the implementation of efficient water usage techniques, the protection of vegetation, and the use of methods to retain moisture in the soil.

What is a drought?A drought is classified as the shortage or absence of water for a prolonged period of time in a region. These can be caused by a prolonged lack of rainfall.Other factors include poor water management and lack of vegetation.

Methods to avoid droughts.The planting and protection of vegetation, primarily those adapted to dry environments, is important in preventing drought.Furthermore, the correct implementation of efficient water usage techniques can aid in preventing drought by limiting the amount of water that is wasted. Lastly, the use of mulch and other water retainers can be an effective method in keeping the soil moist and aids in the previous two methods.

Therefore, we can confirm that the most effective ways to avoid droughts are to practice efficient water use so as to not waste water, to plant and protect vegetation, and to use mulch and other moisture-retaining methods to keep the soil from drying.

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Why can't we just use centuries, decades

Answers

We can? Weeee in them rn

I just don’t understand my dad why I should go to the school

Answers

Answer: well i basically agree with u what  "smart" invtented school anyway

Explanation:

John had unattached earlobes like his father, but his mother has attached earlobes. What is johns genotype with unattached being dominant

Answers

Genotype refers to the complete genetic make-up and can also be referred to as the alleles an organism carries on a particular gene.

John's genotype with unattached being dominant is Aa.

Using A to represent the allelesSince his mother has attached earlobes, her condition can only be inherited in the recessive condition (aa). So for John to have an unattached earlobe, his father has to be either AA or Aa. Therefore John's genotype would be Aa

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True or False. Scientific names use the Spanish language.

Answers

Answer:

False, it's Latin.

Explanation:

The language known today as Spanish is derived from a dialect of spoken Latin, which was brought to the Iberian Peninsula by the Romans after their occupation of the peninsula that started in the late 3rd century BC.

False it’s Latin………….


Anything made from crude oil or natrual gas can be made from synthetic oil.
True
Or
False

Answers

Answer: True but not always

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