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

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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

Why do plant seeds contain oil

Answers

Answer: to store energy

Explanation:

Which geographic concept is MOST EASILY seen in this picture? Cultural Diffusion Population Distribution Forms of Government International Borders​

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Answer is population desterbution

Pls help with this biology question

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Plants make glucose with the sunlight and water and this process is known as photosynthesis The products are glucose and carbon dioxide

Which phrase correctly defines a gene?
O a complete protein
a segment of DNA
a segment of a protein
a part of the cell membrane

Answers

Answer:

A segment of DNA

Explanation:

Genes are parts of DNA

A gene is a segment of the DNA (deoxyribonucleic acid). DNA is the genetic material of the cell which contains the information for the development of different characteristics in an organism. Thus, the correct option is B.

What is a Gene?

A gene is the basic unit of heredity in an organism. It can also be defined as the molecular gene which is a sequence of nucleotides in the DNA molecule that is transcribed to produce a functional RNA which synthesizes a protein. There are two main types of molecular genes which include protein-coding genes and the noncoding genes.

Protein-coding genes or exons are the regions in the DNA which encodes for the synthesis of protein and the non-coding genes or introns are the segments of the DNA which does not code for any protein and thus are spliced in the post-transcriptional mechanism.

Therefore, the correct option is B.

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a material similar to the earths mantle would be

A. Wood
B. Copper
C. water
D. silly putty​

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I think it’s C sorry if I’m am wrong:)

Are gender traits completely a result of societal expectations?
Are there any parts of the human body that get oxygen directly from the air and not from the blood?

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Answer:nope there are no parts like that.

Explanation:

our body uses energy in the form of ATP which is a by product of respiration.

Glucose molecue is broken down into water and ATP molecule.

So our body only take oxygen from blood.

We don't have stomata all over our body dude!

Which cell type would have the highest concentration of oxygen on a bright, sunny day?

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Answer: The Pulmonary vein blood vessel carries oxygenated blood from the lungs back to the heart. Therefore, it carries the highest concentration of oxygen.

Explanation: i think is the answer not sure hope it help this question :)

help please this is about dna in biology

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Answer:

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

Explanation:

whats released during cellular respiration

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Answer:

During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate).

Which of the following is a correct association?

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Answer:

The first one

Explanation:

because it has the most words on their.

The correct association is option a.The cell synthesises proteins and organelles in the G2 phase (also known as the "Gap 2 phase") of the cell cycle in order to prepare for cell division.

The cell enters the G2 phase following DNA replication, which takes place during the S phase. In order to manufacture the elements required for cell division, the cell continues to expand and goes through further protein synthesis during this phase. These proteins play a role in the development of the mitotic spindle, control of cell cycle checkpoints, and cytoskeleton organisation.

The cell also creates organelles like the mitochondria and endoplasmic reticulum to make sure there will be enough energy and cellular building blocks for the impending division in the phase.

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Where does carbon dioxide enter aplant

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Answer:

through its leaves.

Explanation:

Tapeworms can reproduce by _____.

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Answer:

There you go! they explained it better than I could. hopefully that helps you, for more information you could simply look up an article.

How does myelin increase the speed of the action potential?

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It insulates the axon and assembles specialized molecular structure at the nodes of Ranvier. In unmyelinated axons, the action potential travels continuously along the axons.

For example, in unmyelinated C fibers that conduct pain or temperature (0.4–1.2 μm in diameter), conduction velocity along the axon is 0.5–2.0 m/s (as fast as you walk or jog).

I hope this helps have a great day :)

The bacteria that is responsible to convert ammonia to nitrates is called



Group of answer choices

E coli

denitrifying bacteria

nitrifying bacteria

Answers

Answer:

nitrifying bacteria

Explanation:

Question 1: DNA remains in the nucleus. mRNA can travel in and out of the nucleus. Explain how the function of DNA and mRNA differs. ( Will Mark Brainliest and please only answer if your company 100% sure. And Do Not Repost Someone Else's Answer that is on Brainly Or Any Other Websites Please.​

Answers

Answer and explanation;
DNA molecules is a nucleic acid which carries genetic information for the synthesis of proteins that carry out various processes in all organisms and is found in the nucleus of a cell.
Messenger RNA on the other hand is a type of RNA that carries genetic information copied from DNA, for the purpose of protein synthesis.
DNA encodes the information necessary to produce the proteins needed by your body. To make these proteins, DNA first undergoes a process known as transcription.
Transcription is the process that takes place in the nucleus of a cell, where the information on the DNA strand is transferred to a molecules known as mRNA. This process is catalyzed by the enzyme RNA polymerase.
The mRNA is a type of RNA which carries the information from the DNA for protein synthesis. The mRNA moves from the nucleus to the cytoplasm to special organelles called ribosomes where proteins are synthesized.

Stuck on these 2 questions

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5. X^A X^a
6. AA
Explanation

Guys how to convince my dad to give me money

Answers

Answer:

hey dad can i have some money

if he says no

then no

Explanation:

Answer:

First ask for a small amount than right after he gives you the small amount ask for a bigger amount

This trick works all the time

Explanation:


Define the term variation as it relates to living organisms.

Answers

In biology, variation refers to any difference between cells, individuals, or groups of organisms of any species caused by genetic differences (genotypic variation) or the effect of environmental conditions on the manifestation of genetic potentials (phenotypic variation).

Igneous rock that forms from fava at or above Earth's surface:
a. organic rock
b. clastic rock
c. intrusive rock
d. extrusive rock
PLZ HELP

Answers

extrusive rock duhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Answer:

Extrusive rock

Explanation:

there you go :)

A mother has blood type A and her son has blood type O. Which blood types are possible for the father?

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Answer: The child fathers blood type is O.

What is an example of a population in a desert ecosystem

Answers

Answer:

scorpions

Explanation:

scorpions live in but the desert

Which structure is this statement most likely referring to

Answers

Answer:

semipermeable membrane is a large glucose molecule that requires facilitated diffusion but an oxygen molecule does not.

What are 3 inventions that came as a direct result of space exploration?

Answers

Answer:

NASA has addressed a lot of issues in space exploration through their inventions such as water filters, charge-coupled devices, lifeshears, scratch-resistant eyeglass lenses, cochlear implants, anti-corrosion coating and memory foam.

Explanation:

Some animals shiver as a natural, involuntary response to their environment. Shivering generates heat. This is an example of which function? reducing movement to regulate body temperature reducing movement to regulate blood glucose maintaining homeostasis by regulating body temperature maintaining homeostasis by regulating blood glucose

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Answer: The answer is C!!! :D maintaining homeostasis by regulating the body's temp!

Explanation:

Shivering as a natural, involuntary response to generate heat is an example of  maintaining homeostasis by regulating body temperature.

Homeostasis refers to the maintenance of a relatively constant body environment. The normal range of operation of the body system is known as the setpoint.

When the setpoint temperature for some animals is breached, a negative feedback mechanism is used to return it to the setpoint. Shivering to generate heat is a response to a cold environment when the body's temperature is about to drop below the setpoint.

The oppositeis sweating. Sweating causes cooling and comes in response to when the setpoint temperature is exceeded.

Hopes this helps happy early Christmas!!!! :D

Maintaining homeostasis by regulating body temperature.

What is shivering?

Shivering is a mechanism used by animals, including humans, to maintain a constant body temperature in cold environments. When the body's core temperature drops below its normal range, shivering is an involuntary response that generates heat by rapidly contracting and relaxing the muscles.

This increased muscle activity requires energy, which is obtained from the breakdown of stored carbohydrates and fats, releasing heat in the process. This helps to raise the body's core temperature back to its normal range and maintain homeostasis, which is the body's ability to maintain a stable internal environment despite changes in external conditions.

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this list of characteristics describes organisms in the _____ kingdom

Answers

this list of characteristics describes organisms in the united kingdom

The portion of the membrane system in eukaryotic cells that is responsible for the making lipids and breaking down toxic substances in the

Answers

Answer:

The endoplasmic reticulum

Explanation:

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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1. Llena los espacios en blanco
a. ___________________________ se refiere al conjunto de reacciones metabólicas que tienes que ver con la degradación de moléculas complejas. Estas reacciones__________________________ energía por lo tanto se definen como____________________________

Answers

Answer:

tacos and burritos

Explanation:

tacos and burritos

In the American Midwest, native seed crops goosefoot, sumpweed, and sunflowers were farmed about ________ yBP.

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In the American Midwest, native seed crops goosefoot, sumpweed, and sunflowers were farmed about 6,000-1,000 yBP. These crops were used by early Amerindians as sources of food.

The native seed crops goosefoot, sumpweed, and sunflower were used by early Amerindian natives as food prior to the arrival of the squash, beans and maize from Mexico.

The sunflower is nowadays a worldwide extended crop used in intensive farming due to its high yield and high nutritional value.

The first domesticated plants in Illinois about 1800 years before Common Era include goosefoot (Chenopodium berlandieri) and sunflower (Helianthus annuus L.).

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Which of the following human actions negatively affect the water cycle by increasing evaporation?

Answers

Answer: Hydroelectricity

Explanation: None Sorry

Burning of fossil fuels adversely impacts on the water cycle that adversely affect the climate on Earth.

Human activity such as the burning of fossil fuels in vehicles and burning of wood for cooking have adverse effect on the earth's atmosphere. This burning of fossil fuels increase the temperature of the earth leads to global warming.

Raising the Earth's temperature means that there is an increase of evaporation, melting of glaciers and sea ice which imbalance the water cycle leads to flood and drowning of coastal regions of the earth so we can conclude that burning of fossil fuels adversely impacts on the water cycle that adversely affect the climate on Earth.

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