Sammie is using radiocarbon dating to determine the age of a sample of objects. Which best explains why radiocarbon dating can be used to determine the accurate age of these items?
A. They contain radioactive isotopes that decay at a constant rate.
B. They are made primarily of radioactive carbon that is easy to detect.
C. They give off radioactive isotopes when an electrical charge is applied.
D. They have been exposed to large amounts of radioactivity in the atmosphere.

Answers

Answer 1

Answer: I think the correct answer is A or B.

Explanation: But i highly suggest B

Answer 2

Radiocarbon  dating is a feasibe method because the isotopes involved  decay at a constant rate.

What is radiocarbon dating?

The term radiocarbon dating refers to the use of carbon in the establishment of the age of a sample. This is usually done by the use of carbon -14 isotope.

The reason why radiocarbon dating can be used to determine the accurate age of these items is that they contain radioactive isotopes that decay at a constant rate.

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Related Questions

PLS HELp
Flocabulary

Answers

B I think sorry if I’m wrong
I believe it is C! :)

Which change would most likely increase the overall mass of a plant?


A. decreased reproduction
B. decreased respiration
C. increased photosynthesis
D. increased transpiration

Answers

definitely c because getting more sun will make it grow more

Which statement is the best description of organism behavior?

A: the way an organism responds to human instruction

B: the way the environment responds to organisms

C: the physical traits an animal has that are passed down

D: the way an organism responds to the elements in its environment

Answers

The statement 'the way an organism responds to the elements in its environment' is the best description of organism behavior (Option D).

What is the environmental response?

The term environmental response indicates as an organism can react to certain environmental conditions.

These responses are fundamental to the survival and reproduction of the organism.

The organism responds to environmental conditions such as temperature changes, winds, etc.

In conclusion, the statement 'the way an organism responds to the elements in its environment' is the best description of organism behavior (Option D).

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Which behavior is a response to an external stimulus? EXPLAIN WHY


A. An elephant drinks water to quench its thirst.

B. A dog vomits during an illness to rid itself of pathogens.

C. A child gets a fever to fight off the flu.

D. A turtle suns itself on a rock during a cool day.

Answers

C. because it’s something from the outside and it causes the child a reaction

Answer:

D

Explanation:

External means outside of, internal is within. The question is asking for external stimulus. Answers A-C are internal: thirst, fever and illness.

Which of the following contributes to the desertification of the land?
A. under-populated land
B. overgrazing of farm animals
C. sufficient irrigation
D. failure to cultivate the land

Answers

Respuesta:

B. pastoreo excesivo de animales de granja

Porque son lugares secos.

Explicación:  

Las políticas e infraestructuras que promueven la agricultura en las tierras de pastoreo que no pueden mantener sistemas viables de cultivo, contribuyen a la desertificación. La mayoría de las áreas de tierras secas (el 65%) son tierras de pastoreo que son más adecuadas para el pastoreo sostenible que para el cultivo.

answer: B, overgrazing of farm animals

What happens to carbon in the process of photosynthesis?

Answers

Answer:

The plant uses sunlight as energy to perform this chemical reaction. Photosynthesis separates carbon dioxide and water known as CO2 and H2O, respectively into their individual molecules and combines them into new products. It also creates C6H12O6, a substance similar to glucose, that feeds the plant.

Explanation:

- Eijiro <3

Answer:

Photosynthesis separates carbon dioxide and water. (C02 and H20)

Space hurricanes are caused by____________.

Question 2 options:

streams of plasma unleashed from the sun in what's known as the solar wind.


the warm waters of the ocean fuel space hurricanes.


electrons and protons combining together to form a massive tornado like feature in the sky.


the planet Pluto, who is still mad about being kicked out of our solar system.

Answers

It’s definitely the last one :) (just joking)
It’s the first one because it had more explanation and it’s pretty obvious :)

Space hurricanes are caused by streams of plasma unleashed from the sun in what's known as the solar wind.

What is Space hurricane?

This is a phenomenon in which charged electrons and plasma make up a storm instead of rain and wind.

The plasma is usually unleashed from the Sun which is why option A was chosen as the most appropriate choice.

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Yeast are unicellular organisms that produce offspring from a bulge that forms and breaks away from the parent. Based on this information, what type of reproduction is this?
A. Sexual Reproduction
B. Asexual Reproduction (budding)
C. Asexual Reproduction (binary fission)

Answers

Answer: B. asexual reproduction (budding)

Explanation:

it might help you

B. Asexual Reproduction-Budding

TRUE/FALSE: When only water molecules diffuse through a cell's membrane, the process is referred to as hydrolysis.

Answers

Answer:

False

Explanation:

The correct answer is osmosis

Answer:

false

Explanation:

How can the energy stored in the photosynthetic organism be used?

Answers

Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy stored in the bonds to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as movement.

☁️ Answer ☁️

1: "Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules."

2: "The energy stored in the bonds to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as movement. "

-GoogIe

(And I love your pfp)

Hope it helps.

Have a nice day noona/hyung.

Which statement best describes how panting after running helps a person's body maintain homeostasis? EXPLAIN THE ANSWER


A). It keeps the person's body warm when it is cold outside.


B). It rids the body of harmful organisms in the respiratory tract.


C). It brings more oxygen into the body to help meet increased energy

needs.


D). It signals the body to start exercising to prevent getting out of

shape.

Answers

Answer:

the answer is C

Explanation

we all know they homeostasis is the regulation of body fluids and temperature in the body , as the runner is panting , he is also sweating , sweating regulates the body temperature , panting is a signal to the brain that the person is losing oxygen so while panting , the runner is catching his breath

C). It brings more oxygen into the body to help meet increased energy needs.

Please help mee lol!!!! (ill mArk BrAiNlIeSt)
Due in 10 mins

Answers

Answer:

1. Dendrites

2. Nucleus

3. Soma

4. Axon

5. Myelin Sheath

6. Axon Terminal Button

Explanation:

Answer:

1. Dendrite

2. Nucleus

3. Cell body

4. Schwann cell

5. Myelin sheath

6. Axon terminal

Explanation:

TRUE/FALSE: One way to tell the difference between a plant and animal cell is that the animal cell is rectangular in shape.

Answers

Answer:

false

Explanation:

animal cells are circular

False, animal cells are more circular in shape. A plant cell is more rectangular.

]How does emphasis on agricultural technology today compare to the recent past?


Today scientists are only concerned with the nutrition of livestock, not with size or quantity.

In the past, scientists were concerned with mass-producing for local areas, not for large areas.

In the past, scientists have not been concerned with the well-being of livestock or crops.

Today scientists are devising ways to use advancements in positive ways for the environment.

Answers

Answer:

In the past, scientists were concerned with mass-producing for local areas, not for large areas.

Explanation:

Today agriculture is made on a more global scale

Pretend your classmate has told you that they are having trouble with what succession is. How would you explain to them what succession is? How would you explain the difference between primary and secondary succession? Write your response in the textbox and submit when you are done. DO NOT GO.O/.GLE YOUR ANSWER

Answers

Answer:

Ecological succession is the process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire) or more or less.

Explanation:

Ecological succession is basically how the structure of an ecological community changes.

PLS HELP
Flocabulary

Answers

Answer:

im pretty sure its B

Explanation:

Which statement best describes how panting after running helps a person's body maintain homeostasis? EXPLAIN THE ANSWER

A). It keeps the person's body warm when it is cold outside.


B). It rids the body of harmful organisms in the respiratory tract.


C). It brings more oxygen into the body to help meet increased energy needs.


D). It signals the body to start exercising to prevent getting out of shape.

Answers

I think it’s c but I’m not sure
D I put that and got it righteous good luck

help please i have to do it now!!!!

Answers

Answer:

Explanation:

1,3,4 hope this helps<3

1,3,4 brother hope it helps

Can octopuses grow their fangs back?

Answers

Answer:

hi

Explanation:

i think they can't.But they can regrow their arms

have a nice day

The arrows in the picture below show several ways heat is transferred from the Sun as it strikes sand on the surface of a beach. Which arrow shows convection?

A.
1

B.
2

C.
3

D.
4

Answers

4 shows convention because the heat is coming from out of the ground into the atmosphere

Arrow 4 show convection. Thus option 4 is correct.

What is convection ?

The process in which transfer of heat occurs by movement of a heated fluid either air or water called as convection.

Initially the heat transfer through conduction, however a bulk heat transfer takes place due to the motion of the fluid.

The mechanism of convection involved,  fluid is heated from below, leads to thermal expansion.

So that the lower layers,  which are hotter now, become less dense.

So the less denser layer replaced by colder layer due to buoyancy nd colder layer is more dense.

This process continuously occur  and heat transfer occur through convection

It  occurs in both liquid and gases, may be natural or forced, bulk transfer occur.

Thus option 4 is correct.

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HELP!!

Which features of alveoli enable them to exchange gases efficiently? (Select all that apply.)


A. thin walls

B. surrounded by blood vessels

C. small numbers of them in each lung

D. large surface area

Do not scam me using links or attachments (except photos of the answer) or answer this by saying a simple yes or no because that also scams me.

Answers

Answer:

the answer is a i hope this helps

Explanation:

The sac-like structure of the alveoli increases their surface area. In addition, the alveoli are made of thin-walled parenchymal cells. These features allow gases to easily diffuse across the cells. so the

Alveoli has thin walls which are surrounded by blood vessels, and they have maximized are for gas exchange. Thus, option A, B, and D are correct.

What are Alveoli?

These are basic respiratory units, which are balloon like structure present in the lungs, where exchange of gases takes place. A pair of human lungs can contain approximately 480 million alveoli, which produces about, 50 to 75 square meters surface are.

Alveoli are made of thin walls, and they are covered by a rich blood supply through capillaries, this supplies a diffusion gradient for oxygen to move into the blood and carbon dioxide to move into the lungs.

Therefore, the larger surface area, presence of thin wall, which is only one cell thick,  and rich blood supply due to presence of blood vessels enable them to exchange gases efficiently.

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Which of the following cellular processes will be involved in the growth, development, and reproduction of the offspring?
a. meiosis only
b. mitosis only
C. both meiosis and mitosis
d. neither meiosis nor mitosis

Answers

A - meiosis only
Explanation

Answer:Both Mitosis and meiosis

Explanation:

Cell face both conditions for the development of new offspring

1. What is the value of the AMPLITUDE for WAVE A?
2. What is the value of the WAVELENGTH for WAVE A?

Answers

Answer:

Sorry I really just needed the points   ;(

Explanation:

Answer:

1) Amplitude of wave A: 0.5 meters

2) You would have to find the wavelength with the equation λ = [tex]\frac{v}{f}[/tex]

Explanation:

1) Amplitude of a wave is the height of the wave from the horizontal line drawn on "0" to the highest point on the wave.

2) λ is lambda, sign for the wavelength. V is the velocity of the wave, and F is the frequency of the wave.

Hope this helps!

Limiting factors are divided into two categories. What are they? Give an example of each.Limiting factors are divided into two categories. What are they? Give an example of each.

Answers

Answer:

Limiting factors fall into two broad categories: density-dependent factors and density-independent factors. These names mean just what they say: Density-independent factors have an impact on the population, whether the population is large or small, growing or shrinking.

the density-dependent factor example is:

Density-dependent factor, also called regulating factor, in ecology, any force that affects the size of a population of living things in response to the density of the population (the number of individuals per unit area).

the independent factors example is:

Pollution. Like other density independent factors, pollution is a good example of a density independence.

Explanation:

pls mark brainliest

Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource.

Which fact supports the following conclusion?

Agricultural sciences have a global impact.


Grains are in higher demand than livestock worldwide.

The demand for American meat products is increasing.

Genetic modification contributes to health internationally.

The world’s population has risen to seven billion people.

Answers

grains are in higher demand than livestock wordwide

Why should God’s Natural Moral Law be the foundation for all other laws? (i can't fnd religion so i just put it in biology)

Answers

It’s fair and it’s mainly about love and respect for one another

What are winds that blow in a certain direction most of the time and can produce surface currents called?

the Coriolis effect

surface winds

prevailing winds

ocean winds

Answers

Answer: surface winds

A protein may fold incorrectly if_________ brings the wrong amino acid to the ribosome to assemble the protein.

Answers

YOUR ANSWER IS tRNA because the mRNA sends out a message to the tRNA and the tRNA brings back the appropriate amino acid but if the tRNA where to bring back the wrong the protein could fold incorrectly.

If tRNA does not bring back the appropriate amino acids, the protein may fold incorrectly. so, the blank is tRNA.

What is tRNA?

The type of RNA that helps in the synthesis of proteins from mRNA, called as tRNA. tRNA acts as an adapter molecule during the translation process, and as an adapter, it connects amino acids to nucleic acids. It carries the amino acids that are added to the peptide chain and decodes the same codons in the mRNA molecule.  

The structure of tRNA can be separated into primary, secondary and tertiary structures. The structure tRNA has four arms (the acceptor, D, anti-codon and -arms), three loops (D, anti-codon and -loop) and a variable region.

It binds amino acids to specific codons present in the mRNA, by acting as an adapter. Therefore, If tRNA bring wrong amino acid to ribosome for assembly of protein, protein may fold incorrectly.

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Klaus is going to Greece to study the ancient columns. He typically studies artifacts in a lab, but the columns are immobile and can't be taken to
a lab. What kind of artifacts are the columns considered to be?

A .archaeological features

B.stationary artifacts

с.cumulative lifeways

D.stationary remains

Answers

i would say d, they can’t move and they are remains from the past
I think the answer is stationary remains

Sam is making a new homestead in Alaska and needs a supply of fresh drinking water.

i) How can Sam use his knowledge of the water cycle to determine how much water is available?

NO LINKS AND COMPLETE ANSWER (PARAGRAPH)


ii) Describe in detail: Where can he find fresh drinkable water? How can he collect that water? How can he confirm that it is not contaminated?

Answers

Answer:5 Understanding Your Septic System And Water Quality ... 3.1.3 Constructed Wetlands: A New Concept In Treating Wastewater. Section 3.2. On-site ... ground information on water supplies, the water cycle, ... We use water in so many ways that we take it for granted ... water on earth, is liquid fresh water available for most.

Explanation:

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