The most common use of radioactive isotopes in medicine is to diagnose disease. Typically, radioactive materials are injected into the body and then radiation-detecting cameras are used to build images of affected body parts or particular types of cells. This equation models the amount of a radioactive isotope in the bloodstream minutes after it is injected:

Answers

Answer 1

Radioactive substances are employed in therapy to destroy malignant tissue, shrink a tumor, or lessen discomfort.

What is the radioactive elements?

Two or more chemical species of an element with varying atomic masses and unstable nuclei are referred to as radioactive isotopes. Because of the excess radiation that these isotopes produce in the form of alpha, beta, and gamma rays.

Nuclear medicine treatments use a tiny amount of radioactive substance called a radiopharmaceutical to assist diagnose and cure disorders. To identify disorders, some radiopharmaceuticals are utilized in conjunction with imaging technology. To reduce or eliminate a cancerous tumor, radiopharmaceuticals can also be injected close to the tumor inside the body.

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Related Questions

When coal has reached it hardest, darkest form, it is called

Answers

Answer: hard coal

Explanation:

Let me know when you need anything else.

Hard core is the right answer

This diagram shows a chemical reaction in which two glucose molecules combine to form a molecule of maltose.
Drag the labels to their appropriate locations in the diagram.

First, drag the labels of Group 1 to their respective targets to identify the types of sugars and the type of reaction shown.
Then drag the labels of Group 2 to their respective targets to identify the atoms, chemical groups, or molecules involved.
Not all labels will be used.

Answers

Option A is amino acids and D is peptide bond.

How protein is formed?

Proteins are the polymer of amino acids which means that large number of amino acid combines to form protein molecule. The function of protein is to make muscle cells inside the body. The bonds present in protein are peptide bonds.

Proteins made up the structure of many enzymes or in other words, Enzymes are proteins that are comprised of amino acids which are linked together in one or more polypeptide chains.

So we can conclude that Proteins are the polymer of amino acids.

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Climate has changed over geologic time. How does this map provide evidence to support this claim?

Answers

Large sources of fossil fuels are found in cold regions shows evidence of climate change.

What this map shows?

This map shows that large sources of fossil fuels are found in cold regions because fossil fuels are extracted from the living organisms body so in cold regions once there was a large number of organisms lived there. When they died the fossil fuel sources are formed.

So we can conclude that large sources of fossil fuels are found in cold regions shows evidence of climate change.

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Which of the following questions could best be explored using a scientific investigation?

Answers

An empirical scientific question is one that focuses on things, creatures, or occurrences in our immediate environment. By examining quantifiable data and supporting evidence, it can be resolved by experimentation, observation, or other data collection methods.

These questions are appropriate scientific questions and can be tested using the scientific method:

a) The color of Handragea flowers can be studied by growing it in different soils with different pH values and the result can be noted.

b) The properties of soil affecting color of flowers can be studied by growing the flowers in different types of soils like clay, sand, nutrient rich, nutrient deficient, silt, etc.

e) If the grass requires fertilizer one set of grass can be grown without fertilizer while one set can be grown with fertilizer to check the query.

There are limitations to the scientific process. Only quantitative data from observable, quantifiable, and repeatable experiments can it provide objective answers to questions. It is unable to respond to introspective queries based on qualitative judgments or beliefs hence, other options will be incorrect.

Hence, The following questions are considered appropriate scientific questions that can be tested using the scientific method.

a. Does the pH of the soil affect the color of hydrangea flowers?

b. What properties of the soil influence the color of hydrangea flowers?

e. Does grass require fertilizer in order to grow?

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Answer:

The answer is how many seeds are in an apple

Explanation:

The geographic isolation of a population from other members of the species and the subsequent evolution of reproductive barriers between it and the parent species describes ________ speciation. Group of answer choices sympatric

Answers

Answer:

allopatric speciation.

Explanation:

HELP ASAP!!

Why is water considered a renewable natural resource?

because only surface water can be used for human purposes
because once we use up a source of freshwater it is gone forever
because the amount of freshwater is unlimited and should be used freely
because water is continuously cycled from land to the atmosphere and back

Answers

because water is continuously cycled from land to the atmosphere and back

Explanation:

With careful management and responsible usage, water is a renewable resource.

What are the defining characteristics of reptiles?

Answers

There’s a lot but probably you know the basics like they’re vertebrates which means they got back bones , they have a scaly skin , they reproduce shelled eggs , cold blooded

Reptiles are a group of vertebrate animals in the Reptilia class.

What are reptiles?

They are animals in the Reptilia class. Their main characteristics include:

They have backbones.Their body temperature varies with that of the environment.Their bodies are covered with scales.Fertilization is internal and reproduction is by laying eggs or giving birth to live ones.

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The portion of the dna double helix requiring the least energy input to form the bond is the.

Answers

The answer is hydrogen bond between the complementary strands.

What is municipal waste?
Municipal waste is the waste generated by _____
and commercial enterprises, such as markets and hotels. An example of
municipal waste is _____

Answers

Answer: Municipal waste is the waste generated by (households)

An example of municipal waste is (street sweepings)

Explanation:I took the test on edmentum

Municipal waste refers to the waste that is generated by households, institutions, and commercial establishments within a municipality or a local area.

What is municipal waste?

It includes various types of waste produced in everyday activities, such as residential households, schools, offices, restaurants, hospitals, and retail businesses.

Examples of municipal waste include household garbage, food waste, packaging materials, paper, cardboard, plastics, glass, metals, yard waste, and other similar waste materials generated by individuals and businesses within a community. Municipal waste does not include industrial or hazardous waste, which are subject to separate regulations and disposal methods.

The management of municipal waste typically involves collection, transportation, and disposal or treatment of the waste to minimize its environmental impact and promote sustainable waste management practices, such as recycling, composting, and waste-to-energy conversion.

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The Atlantic puffin feeds on several species of Atlantic fish. A population of puffins living on Matinucus Rock was found to feed on the types of fish shown in the graph below. The beaks of this group of puffin are shaped to grasp Species A particularly well. Predict what would happen to the puffins’ beaks if another predator enters the area that is better at preying on Species A. Explain your reasoning based on what you know regarding genetic adaptations.

Answers

Answer:

The Puffins would have to find more food sources and the beaks would change accordingly to the food source they are going after.

What invention in the 1400’s revolutionized the way knowledge could be spread?

Answers

Movable-type printing was the invention in the 1400’s revolutionized the way knowledge could be spread.

What is Movable-type printing?

This type of printing involves the use of movable components to reproduce elements and letters on paper.

This was adopted by churches through printing of bible and other religious materials and led to the protestant reformation in the 1400s

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Which thermoregulation strategy helped the hummingbird decrease its body
temperature?
a. flying
b. eating
c. basking in the sun
d. resting in the shade
submit

Answers

The thermoregulation strategy helped the hummingbird decrease its body

temperature is resting in the shade. Thus, option "D" is correct.

What is Thermoregulation?

Thermoregulation itself is actually a branch of homeostasis. Homeostasis is defined as the internal regulation of body environment which includes the vital organs of the body such as the heart, liver, brain and contraction of skeletal muscles.

Thus, option "D" is correct.

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What do you observe in the North American Deciduous Forests ?

Answers

Answer:

broad-leafed trees that shed their leaves annually

Explanation:

npsgov


Are data that do not support a hypothesis useful?
A. No, because the data must be inaccurate
B. No, because the data show that the experiment failed
C. Yes, because the data prove that the experiment was designed
poorly
D. Yes, because the data provide useful information that can lead to
more testing

Answers

Answer:

D

really dude, just read these types of questions the one that's really different is usually right

How is the rough ER different
from the smooth ER?
A. The rough ER has visible ribosomes.
B. The rough ER has visible chromosomes.
C. The rough ER has a visible nucleotide.

Answers

The answer is A: The rough ER has visible ribosomes.
B because the rough ER HAS RIBOSOME attached TO IT

Which muscle fiber contracts slowly and is usually red due to the amount of blood vessels delivering oxygen to the muscle?.

Answers

Due to their immense oxygen needs, slow-twitch fibers are associated with many blood vessels, mitochondria, and increased concentrations of myoglobin, an oxygen-binding protein in the blood that provides muscles their reddish coloring.

If placed on the icr plan, do you want to repay your direct loans jointly with your spouse?.

Answers

No. Married borrowers are no longer permitted by law to combine their loans into a single joint consolidation loan. You must submit separate applications if you and your spouse both want to repay your loans using an income-driven repayment plan.

What is ICRR plan?

ICRRS is the name of a system that evaluates a customer's financial situation, including their liquidity, cash flow, profitability, debt profile, market indicators, industry and operational background, management skills, and other indicators, to determine whether they can repay a loan.

Your spouse's income is only taken into account under the ICR plan if you jointly filed your tax return.

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Which of the following caused the mortality rates to significantly decrease starting in the 17th century

Answers

Answer:

The significant decrease in mortality rates starting in the 17th century is due improved Hygiene, sanitation, healthcare.

Explanation:

ANYONE?
A 21 year old woman has increasing severe pain in her left leg. She had an undisplaced fracture of the midshaft of her left tibia 2 days ago which was treated conservatively with a plaster cast.
Her toes are warm and pulses are present.

Which is the most important immediate action?

1. Elevate the limb

2.Refer to orthopaedics

3. Remove the plaster cast

4.Replace the cast with increased padding

5. Re-X-ray the fracture site

Answers

C. Remove the plaster cast

I’m guessing that you should elevate the limb and put ice on it to reduce the pain

What adaptation
did lobe-
finned fish have that was
different than the previous
organisms?
A. lobes that were the beginnings of arms and legs
B. jaws that helped with catching prey
C. giving birth to live young
D. brain and vertical column
Activate Wi
Go to Settings

Answers

Answer: A

Explanation:

Lobes were the beginning of arms and legs, the correct option is A.

What are lobe-finned fish?

Lobe-finned fish, unlike other fish, have a core protuberance in their fins that contains many bones and muscles.

The fins are extremely flexible and may be useful for supporting the body on land, as seen in lungfish and tetrapods.

The majority of bony fish have ray fins. These thin fins are made up of skin webs that cover flexible spines. Lobe-finned fish, on the other hand, have fins that look like stumps.

The lobe-finned fishes are the ray-finned fishes' sister group. They are distinguished by paired, fleshy pectoral and pelvic fins espoused by a single bone.

Prehistoric records clearly show that terrestrial vertebrates evolved nearly 400 million years ago from lobe-finned fishes.

Thus, the correct option is A.

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How did the Lumber industry contribute to the pollution in Sudbury (Located in Canada)

Answers

As of now Sudbury has some of the cleanest air in all of Ontario. That’s hard to believe given the city once emitted 2.5 million tonnes of sulfur dioxide per year due to the Lumber industry. In the 1980s, the “Sudbury” became known as a unit of pollution, against which other industrial cities were measured. It’s now become known as a unit of restoration.

Review 2
A Write True or False for each statement.
1. Red blood cells have no nucleus.
2. While blood cells contain hemoglobin.
3. Amoebas are smaller than bacteria.
4. Plants and animals are multicellular.
5. Cells require water to divide..
6. Water moves across cell membranes by osmosis.
7. White blood cells destroy invading bacteria.
8. Cells that work together are called tissues.

Answers

1) True
2) False
3) False
4) True
5) True
6) True
7) True
8) True

what are the components of the PNS ?

Answers

The components of the Peripheral nervous system consists of nerves, ganglia and nerve endings.

What is the function of peripheral nervous system?

The peripheral nervous system is one of the divisions of the central nervous system. Its function is to transmit information from it to other organs and specific parts of the body. Function is carried out through the nerves and nerve ganglia.

In this case, we can say that The Peripheral Nervous System is formed by nerves and ganglia and its function is to bring information to the Central Nervous System and responses to Organs effector organs.

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A variety of mice can have either gray fur (G) or white fur (g). Which words
describe the genotype of a mouse that inherits two of the alleles for gray fur?
O
A. Heterozygous gray
B. Heterozygous recessive
OC. Homozygous dominant
O D. Homozygous white

Answers

Answer:

[tex]\huge\boxed{\sf C. \ Homozygous\ dominant}[/tex]

Explanation:

Key:Since the dominant trait is denoted by a capital letter, gray is a dominant trait denoted by G.Recessive trait: White fur denoted by g.

The mouse inherits two of the alleles for gray fur i.e. GG.

GG is gray (dominant trait) and GG is having the identical alleles so it will be called homozygous dominant.

[tex]\rule[225]{225}{2}[/tex]

how does catfish compare to the 4 groups of plants?​

Answers

se compara que el bagre es una gran cantidad de represas, ya sea en construcción o planificadas, amenazan la especie al bloquear el camino de migración natural del bagre, lo que podría causar su extinción. La represa Xayaburi, la cual ya se terminó de construir, representa la amenaza más cercana a la especie :)

Stones caused by the precipitation of minerals, such as calcium, and other substances from the urine or kidney filtrate are ________________.

Answers

Kidney stones are stones caused by the precipitation of minerals, such as calcium, and other substances from the urine or kidney filtrate.

What are Kidney stones?

These are hard deposits of minerals such as calcium etc which stick together in the urine of affected individuals.

This thereby causes pain when urine is being expelled from the body as a result of the large size.

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Describe the structure of amino acids, and explain how their sequence in proteins affects the proteins' shapes. What are the essential amino acids (definition and a list)

Answers

Answer:

the sequence of anemia of a protein determine eyes protein shape since the chemical properties of each animal acids are force that give rise to enter mosquicular interactions to begin to create a can be success and be stands

Explanation:

your body need 20 different kinds of animal assist to fun to formation correctly this 20 enemy as his combined in different ways to make protisanum your body your body makes hundreds of anemies but it can make 9 of animal assess you need these are called entitional and acid

If a muscle fiber were to suddenly and permanently stop producing ATP the fiber would no longer be able to actively transport calcium out of the cytoplasm (sarcoplasm) and the intracellular calcium concentration would rise. You expect what to happen

Answers

No muscle contraction will be observed.

What is the effect of calcium concentration on muscle contraction?

The concentration of calcium ions in the muscle cells help in contraction and relaxation of muscles fibers.

Release of calcium ions initiate muscle contraction.

Therefore, there will be no contraction of muscle if calcium ions are not transported out from the sarcoplasm.

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how is ""maximum"" tension achieved in a whole muscle (assuming optimal length)?

Answers

The maximum tension achieved in a whole muscle by stretching a muscle to its optimum length.

What is maximum tension of a muscle?

The maximum tension of a muscle is the maximum force that a muscle can generate when contacting.

The maximum tension equates to the maximum work that a contracting muscle can do.

The maximum tension achieved in a whole muscle by stretching a muscle to its optimum length where actin–myosin interactions are maximal.

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For fruits/vegetables, why do some sugars exist in simple forms and some sugars in complex forms?

Answers

Simple sugars are a type of carbohydrate. Carbohydrates are one of the three basic macronutrients — the other two being protein and fat.

Simple sugars are found naturally in fruits and milk, or they can be produced commercially and added to foods to sweeten, prevent spoilage, or improve structure and texture.

Monosaccharides are the simplest carbs, in that your body cannot break them down further.

This allows your body to absorb them quickly and easily, with the exception of fructose.

There are three types of monosaccharides (1Trusted Source):

Glucose: Fruits and vegetables are natural sources of glucose. It’s also commonly found in syrups, candy, honey, sports drinks, and desserts.

Fructose: The primary natural dietary source of fructose is fruit, which is why fructose is commonly referred to as fruit sugar.

Galactose: The main dietary source of galactose is lactose, the sugar in milk and milk products, such as cheese, butter, and yogurt.

Other Questions
In 1973, Congress passed the War Powers Act, which required the president to seek congressional approval for the commitment of American troops overseas. true false Fill in the blanks based off the graph. (I added pictures) Thanks :) 20 pointss!!! The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system.1 0 -1 -30 1 500 1a.X=-3y--9z-1b. x-2y=-9NITC. X=-2y--92-1d. x-3y=-92-1 Which explanation is weakest?a. The steak was overcooked because I cooked it too long.b. Jose didn't drive his car today because it was in the shop for repairs.c. We don't belong to the country club anymore because we can't afford it.d. Gabrielle overslept because she stayed up very latethe answer is A but i cant reason out why it is not C Given that sine of theta = 21/29, what is the value of cosine of theta, for 0 < theta < 90? The table shows some information about the lifetimes, t, in hours, of some lightbulbs.Lifetime Frequency25 < t 50 7050 < t 100 76100 < t 150 29150 < t 200 91200 < t 250 0250 < t 300 15300 < t 350 23Estimate the mean lifetime of a bulb.Give your answer rounded to 2 DP. Ann reads 15 pages in 30 minutes. how many pages she can read in 2 hours Where does the halo of a galaxy expand from? a. the local group out to the dark matter b. the bulge out to the edge of the disk c. the irregular cluster out to the regular cluster d. the edge of the disk out to the bulge You manage a Windows system. You would like to generate a report that runs several basic tests of the operating system, Security Center, hard disk, services, and hardware devices and drivers. How can you generate a report that includes suggestions for how to improve system performance The receptor cells for vision are located in the _____ and are called _____ and _____ 2. four bulbs connoted in parallel controlled by a single pole switch using alternating current What is the value of X when line 30 is executed in the program below: 10 X = 5 20 X = X + 5 30 X = X/5 + X 40 X = X * 5 50 X = (X - 5)/5this is for qbasic btwany helpis appreciated pls only correct answers annoymous questionaires, surveys, and educational tests are all considered Which expression is equivalent to (15)(15^-7)?A 15^-21B -15^4C 1/15^4D 1/15^-4 Should states continue to allow ballot initiatives and other forms of direct democracy?. Select the correct answer.What is the main idea of this excerpt of Abraham Lincolns Second Inaugural Address?On the occasion corresponding to this four years ago, all thoughts were anxiously directed to an impending civil-war. All dreaded it all sought to avert it. While the inaugural address was being delivered from this place, devoted altogether to saving the Union without war, insurgent agents were in the city seeking to destroy it without war seeking to dissolve the Union, and divide effects, by negotiation. Both parties deprecated war; but one of them would make war rather than let the nation survive; and the other would accept war rather than let it perish. And the war came.A. Both the Union and the Confederacy wanted to destroy their enemy.B. Both the Union and the Confederacy were responsible for the Civil WarC. Both the Union and the Confederacy desired total authority by eliminating the other.D. Both the Union and the Confederacy suffered huge economic losses due to the Civil War.E. Both the Union and the Confederacy had stockpiled deadly weapons for the Civil War. help Which statement describes the pattern shown?*1 pointCaptionless ImageA. Each figure has 3 fewer squares than the one before it.B. Each figure has 6 fewer squares than the one before it.C. Each figure has 3 more squares than the one before it.D. Each figure has 6 more squares than the one before it. Solve for x : [tex]\qquad \rightarrow\bf 4x + 9x + 2x = 30[/tex]I Need explanation What does the color and smooth texture of this rock reveal about its formation?A It cools rapidly and contains dark minerals.B It cools slowly and contains dark minerals.C It cools rapidly and contains light minerals.D It cools slowly and contains light minerals.pls answer quickly! i picked biology because i didnt see science category Cai drove 189 miles in 7 hours. If he continued at the same rate, how far would hetravel in 12 hours?