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HERE IS UR ANSWER
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1) Long loop of Henle so that reabsorption of water can takes place to a great extent.
2) Small glomeruli so as to reduce rate of ultrafiltration.
It would normally be the last phase
I really don't know if i can help you but to make the the organisms in the population more suited is by placing them in keep the environment clean and you will have more consumers and producers <span />
Fossils up to 75,000 years old can be dated with Carbon-14.
Radio isotopes can be used for the age determination of the fossils. Carbon-14 is a common isotope which is used for that purpose. But the half- life of the Carbon-14 is relatively small as 5730 years. That means the amount of Carbon-14 will be half after every 5730 years. Hence, decay is very fast. So Carbon-14 cannot be used forage determination which is more than 75000 years due to the low accuracy.
