Multicellular organisms use mitosis for growth, development, and

The bones from an animal found at an archaeological dig have a C614 activity of 0.10 Bq per gram of carbon. The half-life of C61

erastova [34]

C14 is an isotope used in radiocarbon dating techniques to date organic matter remains. The age of these bones is approximately 6890 years.

<h3>What is Carbon 14?</h3>

Carbon 14, also known as radiocarbon, is a radioactive carbon isotope.

Isotopes are the atoms of the same element -carbon- that vary in neutrons and, hence, in their massic number. They are alternative forms of the same element.

The radioactive C14 nucleus contains 6 protons and 8 neutrons and has a half-life of 5730 years.

The term half-life is a reference. It means that an organism that has been dead for 5730 years has half the C14 amount or concentration than the same organism had when it was alive.

Knowing the half-life of an element is useful to determine the age of the dead matter.

C14 is used in radiocarbon dating techniques or methods to estimate the age of fossils. This is a reliable technique used for dating organic samples that are less than 50,000 years old.

Available data:

The half-life of C14 is 5730 years
Bones activity of 0.10 Bq per gram of carbon

To answer this question we can make use of the following equation

Ln (C14T₁/C14 T₀) = - λ T₁

Where,

C14 T₀ ⇒ Amount of carbon in a living body. We know, by bibliography, that living organism activity is 0.23 Bq per gram of carbon. So, C14 T₀ = 0.23 Bq/g

C14T₁ ⇒ Amount of carbon in the dead body. C14T₁ = 0.1 Bq/g

λ ⇒ radioactive decay constant = (Ln2)/T₀,₅

T₀,₅ ⇒ The half-life of carbon 14 = 5730 years

T₀ = Time when the organism was alive

T₁ = Age of bones

Let us first calculate the radioactive decay constant.

λ = (Ln2)/T₀,₅

λ = 0.693/5730

λ = 0.0001209

Now, let us calculate the first term in the equation

Ln (C14T₁/C14 T₀) = Ln (0.1/0.23) = Ln 0.4347 = - 0.833

Finally, let us replace the terms, clear the equation, and calculate the value of T₁.

Ln (C14T₁/C14 T₀) = - λ T₁

- 0.833 = - 0.0001209 x T₁

T₁ = - 0.833 / - 0.0001209

T₁ = 6889.99 ≅ 6890 years

The bones are approximately 6890 years.

You can learn more about dating organic matter with carbon14 at

brainly.com/question/4149380

#SPJ1

6 0

3 years ago

Witch of the following accord along coasts during the day

mina [271]

The following one that accords along coasts during the day is sea breezes. These happen when the cold air from the ocean is gushed to the land around and and because water is slow to absorb heat, it causes breezes we call sea breezes.

Answer: Sea breezes

Shoutout to: @Taskmasters

Note: Witch how you spelled it means a witch that works with magic. The "which" you were trying to use is spelled which. Also next time it helps if you put out the options too. I saw this was your first question so it's all right. I hope this was helpful to you! (before you use your points to ask a question, search brainly or the internet for it and you might find it and you don't have to use your points ; ) )

overcome; live

3 0

3 years ago

Oxygen is a by-product of ______________ and is needed by living organisms for the process of ______________.

Katyanochek1 [597]

The answer is D, photosynthesis and respiration.

—Evidence—

Oxygen is a byproduct of photosynthesis and, correspondingly, carbon dioxide the byproduct of respiration.

Oxygen gives our cells the ability to break down food in order to get the energy we need to survive. Although other animals may use different organs to breathe with, they all get oxygen into their bodies through respiration.

4 0

3 years ago

Juan's class is studying soils. Juan and his partner dug a shovel full of dirt and placed it in a jar. They added water and then

Arlecino [84]

Answer:

C

Explanation:

C no is the answer I think so. but not sure

6 0

3 years ago

Read 2 more answers

Which planets are located outside of the Asteroid Belt?