If a fossil contains 50% of the amount of carbon that a living animal contains, how many half lives have passed while it decayed? How old is the fossil? (half lives x 5730)

Answers

Answer 1

The currently accepted value for the half-life of 14C is 5,730 years. This means that after 5,730 years, only half of the initial 14C will remain; a quarter will remain after 11,460 years; an eighth after 17,190 years; and so on.

If A Fossil Contains 50% Of The Amount Of Carbon That A Living Animal Contains, How Many Half Lives Have

Related Questions

In general, how are seasons in the northern hemisphere related to seasons in the southern hemisphere?

Answers

Answer:

the seasons in the northern hemisphere are the opposite of those in the southern hemisphere

The season are opposite so when it is summer In north it’s winter in south

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

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 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

Genetic recombination would be most closely associated with which process in disease-causing microorganisms?

A.binary fission in fungi
B.sexual reproduction in fungi
C.spore formation in bacteria
D.viral replication in host cells

Answers

i think the answer is B because genetic diversity in sexually reproducing organisms can allow an organism to function in new ways

Genetic recombination is most closely associated with: Choice D: Viral replication in host cells

Definition:

Genetic recombination (otherwise termed genetic reshuffling) is simply the exchange of genetic material between different organisms which leads to production of offspring with combinations of traits that differ from those found in either parent.

In retroviruses, recombination actually occurs at the point during replication when the retrovirus genome is in a DNA form and takes place by the same break-rejoin technique as in cells and DNA viruses.

Recombination can occur both between two related retroviruses and between the retrovirus DNA and the host DNA.

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Individuals with the recessive trait of night blindness (genotype nn) have difficulty seeing in low light. The pedigree shows the inheritance of night blindness in a certain family.Which of these are possible genotypes of the parental generation? Refer to the figure below and match the angle with the correct measurement in degrees.

Answers

Answer:

Cool

Explanation:

The possible genotypes of the parental generation are as follows :

Male : Night Blindness Female : Normal

What is Genotype ?

Genotype is the collection of the the two alleles that makes up the gene inherited by an offspring from its parents.

Given that only one of the males of the first generation suffers from Night blindness, He inherited the Night blindness from the parental generation. therefore the male from the parental generation is a carrier of the Night blindness allele while the Female is not a carrier.

Hence we can conclude that The possible genotypes of the parental generation are Male : Night Blindness and Female : Normal.

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Provide an example of how a genetic mutation could be positive, then explain how that mutation could cause a change in a population over time.

Answers

Q1: A genetic mutation can have a positive impact on a species as it can give them an advantage in survival in comparison to its counterpart that does NOT have that same mutation.
Q2: If this mutation has a positive impact on survival rates, it’ll be more common for the ones that have the mutation to reproduce rather than the ones that don’t. As time goes on the majority of the population will have this mutation, possibly changing it completely.

Answer: Some mutations happen during cell division, when DNA gets duplicated. But the mutations we hear about most often are the ones that cause disease. Some well-known inherited genetic disorders include cystic fibrosis, sickle cell anemia, Tay-Sachs disease, phenylketonuria and color-blindness, among many others.

How do weather impact travel and tourism? (We are going to explore how weather impacts travel to Costa Rica, and how weather influences whale migration/whale watching tourism.)

Answers

Sunny weather does seem to be broadly correlated with a larger surplus on the international tourism balance, while worse weather is associated with a tourism deficit. This confirms that, as expected, overall there is a net flow of tourists from colder to warmer countries.

Now I know that structures in a simple nervous system differ from those in a complex nervous system in that they have a
pls answer this seriously.
thx!!

Answers

Answer:

Now I know that structures in a simple nervous system differ from those in a complex nervous system in that they have a unit that isn't basic, but in their arrangement. In higher nervous systems there are not interneurons concentrated in the main nervous system. (brain, spinal, and cord.) They meditate the impulses between afferent and efferent neurons.

Explanation:

what important detail should be modeled in the movement of the moon?

Answers

Make sure to model the phases of the moon in occurrence with movement

can octopuses regenerate teeth?

Answers

No they cannot. Lol lol lol

i believe the answer for this is no

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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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: I think the correct answer is A or B.

Explanation: But i highly suggest B

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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What is represented in each square of the periodic table?

Answers

I don’t know if you’re talking about the little circles and dots since I don’t really understand the question but those are the Lewis Dot Structure

In the levels of organization, a group of organs form _________.

- an organ system,

- tissues,

- bones

Answers

Answer:

an organ system

Explanation:

It’s an organ system :)

Imagine you are a scientist who monitors some of North Carolina's trout streams. You find that one of the streams has a temperature of about 13°C during most of the day. However, everyday around 2 p.m., the stream briefly reaches temperature levels of 19°C. What should you do in order to preserver the water quality of this stream?

Answers

Answer:

Explanation:

Why is having many sense organs an advantage for an animal?

Answers

Sense organs allow animals to sense changes in the environment around them and in their bodies so that they can respond appropriately.They enable animals to avoid hostile environments,sense presence of predators and find food.

Faculties help all creatures arrange themselves in their surroundings, to discover food, to escape from risk, and to discover others of their own sort. Nonhuman creatures may have faculties that people don't have. For instance, most birds can see bright light while people can't.

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:

ASAP PLEASE HURRY
Igneous, sedimentary, and metamorphic are found at the same cliff side.

Which statement is correct about the rocks in this location?

A) All three types of rock will become metamorphic if they stay at the surface of Earth.

B) If this location is buried deep underground, only the metamorphic rock will melt because it has already been heated before.

C) The metamorphic rock and sedimentary rock were already at this location and magma flowed into the other rocks.

D) The igneous rock will become metamorphic rock after the rock in the cliff side turns into sediment.

Answers

Answer:

The metamorphic rock and sedimentary rock were already at this location and magma flowed into other rocks

PLS HELp
Flocabulary

Answers

B I think sorry if I’m wrong

I believe it is C! :)

Which level of organization in the classification system is directly above the class level?

Domain
Family
Kingdom
Phylum

Brainliest for correct answer! :D

Answers

Answer:

Phylum

Explanation:

Kingdom, Phylum, Class, Order, Family, Genus and Species.

Answer:

Phylum, and kingdom is on top of Phylum

mark brainliest please :D

answer the question plss and thank you.

Answers

Answer:

Definition: A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.

use it: molecules is in yours and my body

summarize: a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.

Picture it:

WORTH 15 PTS!!!!
The table below shows two types of electromagnetic waves and three random applications of electromagnetic waves.

Type of Wave Applications of Wave
X-rays 1. Show the heat released by astronomical objects
Ultraviolet rays 2. Study stars having high temperature
3. Detect collection of gas, dust, and plasma

Which of these best matches the waves with their applications?

Select one:
a. X-rays—2 and ultraviolet rays—3
b. X-rays—3 and ultraviolet rays—2
c. X-rays—1 and ultraviolet rays—2
d. X-rays—2 and ultraviolet rays—1

Answers

I believe the answer is C.

The answer to the question is C

Which human activities would most likely increase turbidity? Check all that apply.
cutting down trees
building roads in mountains
constructing buildings
planting gardens in vacant lots
removing sediments from sidewalks using water

Answers

Answer:

Explanation:

The human activities that will most likely increase turbidity are as follows:

constructing buildingsremoving sediments from sidewalks using water

What is turbidity?

Turbidity is a quality of having the lees or sediment disturbed i.e. not clear.

Turbidity is a measure of transparency of a water body. It is caused by a release of sediments into the water that makes it unclear.

Therefore, the human activities that will most likely increase turbidity are as follows:

constructing buildingsremoving sediments from sidewalks using water

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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

Which choice best explains why scientists may use volunteers to help with an investigation?

A. Scientists have a large amount of data to collect.

B. Scientists must spend a lot of time creating graphs to analyze the data.

C. Scientists want to help volunteers learn more about the scientific process.

Answers

Answer:

Explanation:

well volunteers are use to help and learn so i think c is the correct answer

C

Because scientists use volunteers to help the scientific process go faster and easier

All the statements are correct with respect the two atoms placement on the Periodic Table EXCEPT –

Answers

C because both shells of the atom are filled therefore it is stable and isn't reactive. It's not A because there is only one electron in the outer shell therefore it is reactive but not highly reactive. So C is the answer.

Hope this helps! Brainliest is always appreciated!

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)

Can you defang a octopus?

Answers

Yes you can ..........

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.

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