All categories

1 year ago

A fossil is found to have a 14c14c level of 73. 73. 0 ompared to living organisms. how old is the fossil?

Biology

1 answer:

AnnyKZ [126]1 year ago

3 0

If the 14C level of fossils is 73% compared to living organisms. It will be 2602 years.

<h3>What is radiocarbon dating? </h3>

This method is used to estimate the relative age of carbon-based materials. This is done usually for fossils which originate from living organisms.

This age is estimated by estimating the percentage of carbon-14 isotopes in the fossil. This is done by comparing this percentage to a reference standard used internationally. This method is of tremendous use in palaeontology. It has also found its use in hydrology, oceanography, geology etc.

Fossil age is determined by

At = (Ao) x (1 - 0.5)^(t/h)

Here, At/Ao = 0.73

So, 0.73 = 0.5^(t/5730)

Therefore, t = 2602 years

You might be interested in

which principles states, that in undisturbed rock layers, the oldest rocks are on the bottom and the youngest rocks are on top

Leviafan [203]

Answer:

The correct answer is principle of superimposition.

Explanation:

According to the superimposition principle, in the undisturbed rocks, the youngest rocks are situated on the top and the oldest rocks are found in the bottom. The phenomenon takes place due to withering. The rocks get withered because of the influence of air and water.

The soil particles or the sediments get gathered at another site. The deposits of sediments get concentrated with time and result in the production of rocks. The mature rocks get surrounded by the layers of sediments with time passing by. These sediments get concentrated again to produce novel rocks. Through this procedure, the fresh young rocks get produced over the older ones.

3 0

3 years ago

Why do the finch species look so different on the Galapagos Islands?

Verdich [7]

Answer:

B.When the finches migrated to new islands with food sources,they needed to adapt in order to survive.

6 0

3 years ago

Question 6(Multiple Choice Worth 2 points)

never [62]

Explanation:

seals more offspring when food is plentiful

4 0

1 year ago

Global bee populations have been declining over the past decade. What impact might this have on the world's human population?

aev [14]

Answer:

Bees play a significant role in the field of agriculture. They can adapt to the process of pollination. Pollination is usually defined as the process of transportation of pollen grains from the male anther of a flower to the female stigma. The bees pollinate the crops and increases their productivity and yield capacity. About 35% of the food that we eat, are dependent on this pollination act that is carried out by the bees, involving either directly or indirectly.

Over the last few decades, the population of the bee has been decreasing, and it is directly affecting the global human population. It is because less amount of food is produced compared to the rate of demand, resulting in a shortage of food items.

7 0

3 years ago

Which of the following determines the specificity of a DNA probe?

kiruha [24]

Answer:

Complementary base pairing

Explanation:

DNA probes are the single stranded stretches of nucleotides that are complementary to the original strand. DNA probes are used in various molecular technologies like polymerase chain reaction and DNA finger printing.

DNA probes can only hybridize with the specific complementary base pairs. Hence, complementary base pairing determines the specificity of DNA probe.

Thus, the correct answer is option (D).

5 0

3 years ago

Read 2 more answers