Answer: The fossil is 11459 years old.
Explanation:
Half-life of carbon-14 = 5700 years
First we have to calculate the rate constant, we use the formula :
Now we have to calculate the age of the sample:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant = ![1.21\times 10^{-4}\text{years}^{-1} t = age of sample = ? a = let initial amount of the reactant = 100 g x = amount decayed = 75 g a - x = amount left after decay process = 100 - 75 = 25 g Now put all the given values in above equation, we get [tex]t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}](https://tex.z-dn.net/?f=1.21%5Ctimes%2010%5E%7B-4%7D%5Ctext%7Byears%7D%5E%7B-1%7D%0A%3C%2Fp%3E%3Cp%3Et%20%3D%20age%20of%20sample%20%20%3D%20%3F%0A%3C%2Fp%3E%3Cp%3Ea%20%3D%20let%20initial%20amount%20of%20the%20reactant%20%20%3D%20100%20g%0A%3C%2Fp%3E%3Cp%3Ex%20%3D%20amount%20decayed%20%3D%2075%20g%0A%3C%2Fp%3E%3Cp%3Ea%20-%20x%20%3D%20amount%20left%20after%20decay%20process%20%20%3D%20100%20-%2075%20%3D%2025%20g%20%20%3C%2Fp%3E%3Cp%3ENow%20put%20all%20the%20given%20values%20in%20above%20equation%2C%20we%20get%0A%3C%2Fp%3E%3Cp%3E%5Btex%5Dt%3D%3D%5Cfrac%7B2.303%7D%7B1.21%5Ctimes%2010%5E%7B-4%7D%7D%5Clog%5Cfrac%7B100%7D%7B25%7D)
The fossil is 11459 years old.
Answer:
Habitat Isolation
Explanation:
Ecological, or habitat, isolation occurs when two species that could interbreed do not because the species live in different areas.
Salmonella is the parasitic worm that can be transferred to humans when eating raw or undercooked fish.
Frogs and pigeons both lay eggs. They may both share this characteristic because eggs are an easy way to allow young to develop outside of the womb.
This is a good question, I feel that a species can only consist of a specific type of organism. Example "dogs" and "wolves" species name is canus lupus and a dog's is canus familiarus. <span>A population can consist of multiple species.
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