You've been tasked to study the movements of condensed chromosomes during cell division.
You have access to a magnifying glass, a standard light microscope, a scanning electron
microscope and a transmission electron microscope. Which piece of equipment would you choose
and why? Also why would you NOT choose the others? (max 50 words)

Answers

Answer 1

In order to see something as small as a chromosome, It is necessary to employ the use of a scanning electron microscope.

The question states that we wish to study the movements of condensed chromosomes during cellular division. This means that we will need a scope capable of not only looking inside of a cell but even inside of the nucleus of a cell, an extremely minute space.

Logically, a magnifying glass will not be able to accomplish this given that it only allows us to see macroscopic elements, many hundreds of times bigger than what we wish to observe. We run into similar limitations with standard light and transmission microscopes. Although these allow us to see things on a microscopic level, they fall short of the desired capability.

Though the transmission microscope can see even smaller elements than a standard light microscope, both are limited to the surface of cells. The SEM or scanning electron microscope, on the other hand, allows the user to see elements down to 0.1 nanometers in size. Given that chromosomes are between 10 and 30 nanometers in size, we can use this microscope for the desired study.

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You've Been Tasked To Study The Movements Of Condensed Chromosomes During Cell Division.You Have Access

Related Questions

Risk of toxicity is higher with fat- vitamins. True or False

Answers

Answer:

True

Explanation:

The fat-soluble vitamins, A, D, E, and K, are stored in the body for long periods of time and generally pose a greater risk for toxicity than water-soluble vitamins when consumed in excess. Eating a normal, well-balanced diet will not lead to toxicity in otherwise healthy individuals.


Explain why it is not possible to make a conclusion from
this experiment.

Answers

Answer:

impossible every experiment have a conclusion

Marine biologists have determined that when a shark detects the presence of blood in the water, it will swim in the direction in which the concentration of the blood increases most rapidly. Based on tests conducted by the biologists, the concentration of blood (in parts per million) at a point P(x,y,z) on the surface of sea water is approximated by

Answers

Blood concentration is approximated by the distance from the source.

The concentration of blood at a point P(x,y,z) on the surface of sea water is approximated by the distance from the source where the blood moves. Point x is the place where the concentration of the blood is the highest because at this point the source of blood present.

At point y, the concentration of the blood is lower as compared to point x but higher than point z, while on the other hand, at point z the concentration of blood is the lowest due to its presence farther from the source so we can conclude that blood concentration is approximated by the distance from the source.

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PLS ANSWER NOW THANK YOU :):) NEED HELP QUICKIn
1-2 sentences, describe the process of deposition and explain how it creates new landforms. :):)

Answers

Deposition is the geological process in which sediments, soil and rocks are added to a landform or landmass. Simply when layers of eroded material pile to create new landforms. For example, coastal deposition is how beaches are formed.

The geological process of deposition involves the addition of sediments, soil, and rocks to a landform or landmass. when eroded debris is piled up in layers to produce new landforms.

What is deposition?

A deposition is testimony made under oath and taken down in writing by an authorized officer of the court, typically in an out-of-court setting and before trial.

Depositions are usually taken from key witnesses, but can also involve the plaintiff or defendant, to give the involved parties a fair preview of all the evidence.

The individual making the deposition is known as the deponent and false statements can carry civil and criminal penalties.

Therefore, The geological process of deposition involves the addition of sediments, soil, and rocks to a landform or landmass. when eroded debris is piled up in layers to produce new landforms.

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please answer fast please ​

Answers

Answer:

year 1800

Explanation:

I think this is the right answer, good luck dude :)

Answer:

i dont know thx for the point.s

Explanation:

How is CO2 essential for life?

Answers

Answer:

if there will be no CO2 then there will be no food because the green plants produce food using the CO2 only

Explanation:

brainliest plz

Answer:

Carbon dioxide provides the carbon that is the building block of all life. Plants consume carbon dioxide to grow and animals consume plants to obtain the necessary carbon for existence. ... All plants and animals die. The carbon eventually becomes coal, natural gas and crude petroleum locked inside the earth

1. Which of the following scenarios would not prompt the cell to start dividing? A. a bone elongating during puberty B. tissue healing after an injury C. stretching of a cell to allow for more fat storage

Answers

Answer:

I think the answer is C

Explanation:

The scenario that would not prompt the cell to start dividing is the stretching of a cell to allow for more fat storage.

What do you mean by Cell division?

Cell division may be defined as the process by which a parent cell divides into two or more daughter cells.

The stretching of a cell to allow for more fat storage is usually done by the process of cell growth, but not by the process of cell division.

Therefore, the scenario that would not prompt the cell to start dividing is the stretching of a cell to allow for more fat storage.

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If both parents are (hetero-zygous),
what percent of their offspring would be (homo-zygous) recessive?
Question 2 options:

100%


25%


50%


75%

Answers

The answer is 25%.
Father : Aa
Mather : Aa
Offspring : AA : Aa : aa = 1 : 2 : 1
Recessive : 1/4 = 25%

5514998054 ps 123456​

Answers

tyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

can anyone heelp me
pls pls

Answers

Answer: lotion- semi-solid

capsule- solid

suspension- liquid

Explanation:

phenol, strong acids and bases are examples of hazardous chemicals that are

Answers

Answer:

corrosive chemicals thank you


Which of the following best describes gasoline?
Solid
Low energy
Stable
Combustible

Answers

Combustible, light it on fire. It goes BOOM.

Using ___ is one way of planting where a seed is allowed to germinate in box or boxes before planting the soil.

Answers

Answer:

Plantig seeds

Explanation:

The answer is “Planting seeds”.

A seventh-grader drew the following image as a model of asexual reproduction. image Is the seventh grader’s model a correct representation of asexual reproduction? A. The model is not a correct representation of asexual reproduction, as the offspring are not genetically identical to the parent organism. B. The model is not a correct representation of asexual reproduction, as the offspring have the same characteristics. C. The model is a correct representation of asexual reproduction, as all organisms have a nucleus. D. The model is a correct representation of asexual reproduction, as the parent and offspring all look like single-celled organisms.

Answers

Answer:

hello! The model is not a correct representation of asexual reproduction, as the offspring are not genetically identical to the parent organism. is the awnser

Explanation:

30 POINTS In what ways can the use of statistics help in improving mental health services? Could the use of statistics cause potential misunderstandings of mental health services? How can you avoid any such misunderstandings?

Answers

In what ways can the use of statistics help in improving mental health services? Could the use of statistics cause potential misunderstandings of mental health services? How can you avoid any such misunderstandings?

Myths, misunderstandings, and negative stereotypes and attitudes surround mental illness. These result in stigma, discrimination,and isolation of people with mental illness, as well as their families and carers.

----------------------------------------------------------------------------------------------------------------

Are mental illnesses a form of intellectual disability or brain damage?

No. They are illnesses just like any other, such as heart disease, diabetes, and asthma. Yet the traditions of sympathy, support, and flowers given to people with physical illnesses are often denied to those with a mental illness.

Are mental illnesses incurable and lifelong?

No. When treated appropriately and early, many people recover fully and have no further episodes of illness.

For others, mental illness may recur throughout their lives and require ongoing treatment. This is the same as many physical illnesses, such as diabetes and heart disease. Like these other long-term health conditions, mental illness can be managed so that individuals live life to the fullest.

Although some people become disabled as a result of ongoing mental illness, many who experience even very major episodes of illness live full and productive lives.

Are people born with a mental illness?

No. A vulnerability to some mental illnesses, such as bipolar mood disorder,can run in families. But other people develop mental illness with no family history.

Many factors contribute to the onset of a mental illness. These include stress, bereavement, relationship breakdown, physical and sexual abuse, unemployment,social isolation, and major physical illness or disability. Our understanding of the causes of mental illness is growing.

Can anyone develop a mental illness?

Yes. In fact, as many as one in five Australians may develop a mental illness at some stage in their lives. Everyone is vulnerable to mental health problems.

Many people feel more comfortable with the notion of having 'a nervous breakdown' rather than a mental illness. However, it is important to talk openly about mental illness, as this reduces the stigma and helps people to seek early treatment.

Are people with mental illness usually dangerous?

No. This false perception underlies some of the most damaging stereotypes. People with a mental illness are seldom dangerous. Even people with the most severe mental illness are rarely dangerous when receiving appropriate treatment and support.

Should people with a mental illness be isolated from the community?

No. Most people with a mental illness recover quickly and do not even need hospital care. Others have short admissions to hospital for treatment. Improvements in treatment over recent decades mean that most people live in their communities, and there is no need for the confinement and isolation that was commonly used in the past.

A very small number of people with mental illness need hospital care,sometimes against their will. Improvements in treatment are making this less and less common, and fewer than one in a 1000 people are treated this way.

Describe four ways that protist get food?

Answers

Answer:

There are many plant-like protists, such as algae, that get their energy from sunlight through photosynthesis. Some of the fungus-like protists, such as the slime molds (Figure below), decompose decaying matter. The animal-like protists must "eat" or ingest food. Some animal-like protists use their "tails" to eat.

Explanation:

Which structural data is normally used to classify mosses into the category Bryophyta?(1 point)

They are large.


They lack roots.


They produce flowers.


They produce seeds.

Answers

Answer:

They lack roots

Explanation:

The structural data which is normally used to classify mosses into the category Bryophyta is that they lack roots. Thus, the correct option for this question is B.

What are the characteristics of Bryophyta?

The characteristics of the Bryophyta are as follows:

The plant body is mostly thallus-like, i.e. erect or prostate.They are generally attached or linked to the substratum by rhizoids. They significantly lack true vegetative structure. The plants are generally green and have chloroplast.They express an autotrophic mode of nutrition.Vascular tissues like the xylem and phloem are completely absent.

It is known that Bryophytes include embryophytes like hornworts, liverworts, and mosses. These are very small plants that remarkably grow in shady or damp areas where there is an enormous amount of mud is present.

Bryophytes have no roots, leaves, or stems. This characteristic is the root foundation or evidence that is used to classify mosses into the category of Bryophyta.

Therefore, the correct option for this question is B.

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Giving Brainliest!!!!!!!!

Answers

Answer:

organelles

Explanation:

since multicellular plants and animals have organs that perform specific functions, eukaryotic cells have organelles to perform their specific functions.

a plant grows 3 inches faster per dat when placed on a window sill than it does when placed on a coffee table. Determine if observation is qualitive or quantitive

Answers

Answer:

sg5ntg4r4fhynumybtcrbu

ny f gh

Explanation:

chnbunmhbcrxrctvub

Chloroplasts and mitochondria are both involved in energy conversion in cells and share many similarities. Differentiate between chloroplasts and mitochondria. Choose ALL of the characteristics that apply ONLY to chloroplasts.

A) contain DNA B) found in plants C) contain pigments D) used in photosynthesis E) used in aerobic respiration

Answers

Explanation:

contain pigments c and used in photosynthesis

The main difference between chloroplasts and mitochondria are contained pigments, used in photosynthesis. The correct options are C and D.

What are chloroplast and mitochondria?

The organelle found inside the cells of plants is known as a chloroplast. Additionally, there are particular algae that serve as the photosynthesis sites, where the sun's energy should be converted into chemical energy for the sake of growth. In addition to being employed in photosynthesis, it also contains pigments.

Membrane-bound cell organelles known as mitochondria (mitochondrion, singular) produce the majority of the chemical energy required to fuel cellular metabolic operations.

Therefore, the correct options are C) containing pigments and D) used in photosynthesis.

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N.) Effects of human Intervention of the nitrogen cycle-

Answers

The chief culprit is fossil fuel combustion, which releases nitric oxides into the air that combine with other elements to form smog and acid rain.

Choose the stage that best matches the description given.

In warm, humid climates, only dry bones would exist at this stage.

Day 1
Day 2
After day 50
Days 3-17
Days 26-43
Days 18-25

Answers

In order for an organism to decompose to the point that only dry bones will remain, it is estimated that in warm and humid environments the process will take roughly three weeks, In which case the options of Days 26-43 as well as after day 50 are correct.

Decomposition is what happens to any dead organic material. Decomposition is when the organic material is broken down into smaller compounds, organic or not. This process is affected by a variety of conditions including:

TemperatureHumidityPresence and species of insectsElements to which the material is exposed

and so on. Each of these factors can greatly impact how fast something will decompose.

The question at hand gives us the conditions for the fastest decomposition, given that this process is accelerated in warm and humid conditions. When in these conditions, it is estimated that an organism can take a minimum of three weeks to reach the stage in which all that is left is the skeleton (dry bones).

Three weeks consists of 21 days, however, option 6 that states "Days 18-25" is not being included given that during days 18-21, elements other than bones may still be present. For this reason, the correct answer is any day after day 21, that is, days 22-50+. Therefore, options 5 and 3 can both be considered correct as in those days only dry bones will remain.

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Answer: if u say this: In warm, humid climates, only dry bones would exist at this stage. on whatever your search thing

it shows that and it shows that a person on brainly said 18-25 but its the 26-43 one I think I'm not fully sure. Apologies but beware about all the other questions it made me get alot wrong those people on here are wrong i might be to  

Explanation:

Days 26-43

describe how the moon appears to move across the night sky. First person to awnser correct in the next 6 hours will be marked brainless

Answers

Answer:

The Earth is rotating

Explanation:

The Earth is rotating on it's axis

Because of the Earth's rotation, everything in the sky seems to move together.. Earth rotates on its axis from west to east, the Moon and the Sun and all other celestial objectsappear to move from east to west across the sky

Which step of the scientific method do you perform after you form a
hypothesis?
A. Collect data and observations.
B. Draw conclusions.
C. State the problem.
ОО
D. Conduct an experiment.

Answers

Answer:

d. conduct an experiment

Answer:

D. Conduct an experiment.

Explanation:

State the Problem.

Collect Information (Data and Observations)

Form a Hypothesis.

Test Hypothesis: Conduct an experiment

Keep Accurate Record.

Check Results.

Repeat Experiment.*

Draw Conclusions.

To best display the distribution of sex (male, female, other), we could use:

Answers

Answer:

i guess it's gender

hope this helps

Enzyme activity generally increases as temperature increases within an enzyme’s optimal range because an increase in temperature causes an increase in molecular motion. This increase in molecular motion results in the enzyme and its substrate coming into contact with each other more often. At too high a temperature, however, the enzyme will become denatured and no longer be able to function. As the video describes, that is what happens when someone has a high fever.

What do you think happens to enzyme activity as temperature decreases outside an enzyme’s optimal range? Explain your answer in terms of molecular motion.

Answers

This most reliable temperature is commonly around human frame temperature (37.5 °C) for the enzymes in human cells. Above this temperature, the enzyme shape begins to interrupt down denature given that at better temperatures intra- and intermolecular bonds are broken because of the enzyme molecules' advantage of even greater kinetic electricity.

Each enzyme has a temperature variety in which a maximal charge of response is accomplished. This maximum is referred to as the temperature most desirable of the enzyme. The most excellent temperature for maximum enzymes is set at ninety-eight. 6 tiers Fahrenheit (37 ranges Celsius). There also are enzymes that work nicely at decreased and better temperatures.

Most activity is accomplished on the enzyme's ultimate temperature. The lively website online of the enzyme modifications shape as the temperature rises above the surest temperature, resulting in a decline in interest. Above and under the highest quality temperature, activity decreases.

Most enzyme functions are done at 37∘C in humans due to the fact the enzymes are capable of holding their structure at that temperature, allowing it to break down complex molecules efficiently.

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5. Once the caffeine is removed from the plant
materials, how might the caffeine be recovered
from the supercritical Co,?
F. by forcing the Co, back through the plant
materials
G. by lowering the temperature and pressure
of the CO2
H. by changing the polarity of the caffeine
molecules
I. by using a harsher solvent

Answers

Answer:

Option C

Explanation:

Caffeine is actually supercritical carbon dioxideLowering the temperature will cool it down and can make dry ice kinda situationPressure must be low also

Option G is correct

is a chemical substance that is produced in substantial quantities, and is reasonably expected to be released in to the environment in substantial quantities a risk trigger, standard trigger, or an exposer trigger?

Means that the EPA has made a determination that a chemical or biological agent may present an unreasonable risk both in toxicity and exposure.
a. exposer trigger
b. standard trigger
c. risk trigger

Answers

Answer:

c-risk trigger

Explanation:

The Risk Evaluation process is the second step, following Prioritization and before Risk Management, in EPA’s existing chemical process under TSCA.  The purpose of risk evaluation is to determine whether a chemical substance presents an unreasonable risk to health or the environment, under the conditions of use, including an unreasonable risk to a relevant potentially exposed or susceptible subpopulation.  As part of this process, EPA must evaluate both hazard and exposure, exclude consideration of costs or other non-risk factors, use scientific information and approaches in a manner that is consistent with the requirements in TSCA for the best available science, and ensure decisions are based on the weight-of-scientific-evidence. 

Which statements about wells are true? Check all that apply.

Wells bring groundwater from the unsaturated zone to the surface of the water.
Wells need to be drilled below the water table.
If water is pumped from a well too quickly, the well may run dry.
Water from wells is generally not safe to drink.
Water gushes from artesian wells due to pressure.

Answers

Answer:

Wells need to be drilled below the water table.

If water is pumped from a well too quickly, the well may run dry.

Water gushes from artesian wells due to pressure.

Explanation:

The statements that assert a true claim regarding the wells would be as follows:

b). Wells need to be drilled below the water table.

c). If water is pumped from a well too quickly, the well may run dry.

e). Water gushes from artesian wells due to pressure.

The above statements offer appropriate claims regarding the wells that they are required to be penetrated down the water table because it assists in striking the water from the lower levels as well. The next statement asserts that water must be transported from wells in a hurry because it can impact the yielding ability of the wells.The streaming of water from the artesian wells is primarily because of the pressure as it helps in the release of the water effectively.

Thus, options b, c, and e are the correct answers.

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Cuál es la utilidad de la lógica argumentativa en la comunicación

Answers

Answer:Comunicación argumentativa para la investigación-acción ... espectro innovador de su diseño de la lógica que enseña a investigar problemas y ...

Explanation:

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