Question

why are invertebrates shown in the deepest layer of the earth ​

Answer 1

Answer:

Explanation:

The invertebrates were among the first animals to live on earth nd hence when they died their remains got deposited into he soil. Eventually with time the soil for covered with more layers on above nd hence they r found in Deepest layers

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Answer 2

EXPLANATION:

Invertebrates are the most primitive living organisms. They importantly do not have a notochord and have no bones apart from many other distinguishing factors from vertebrates.  

They have existed on Earth from the earliest of times. As life has evolved over time and these invertebrates have died, natural processes have caused their deposits to be layered over by many layers of dust and Earth. Hence the invertebrates have been shown in the deepest layer of Earth where their deposits have been found.