Respuesta :

Answer:

1)Amber in Russia

2)Frozen soil in the Arctic

3)Ice sheets in Greenland

Explanation:

The three afformentioned sources have some features which makes the micro organisms to react on the organic compounds soft tissues just the way they would have reacted under under normal conditions.

fossilized remains of hard tissues such as teeth helped scientist with knowledge of ancient life of animals ,however some of the soft tissue of small mammals such as their fur were known through fossil. Some of these mammals were discovered like 125 millions years ago by pallentologist in Spain. , some species such as xenarthrosus are very common creatures with spinal vertebrae.

Therefore, Amber in Russia,Frozen soil in the Arctic and Ice sheets in Greenland are the only options with source that would preserve the soft tissue of an early mammal.

Amber in Russia, Frozen soil in the Arctic and Ice sheets in Greenland are the options that can preserve the soft tissue of an early mammal.

In normal conditions the microorganisms degrade the dead material. If the mammal tissue is preserved in sterilize environment, the self life of the sample will increase.

  • Inside the amber, the microbes do not have the access of soft tissue. Hence, the tissue will preserved for very long time.
  • Inside the frozen ice, the temperature is very low. In very low temperature microbes do not grow.

Therefore, Amber in Russia, Frozen soil in the Arctic and Ice sheets in Greenland are the options that can preserve the soft tissue of an early mammal.

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