I believe the answer is: (C) Organelle < (A) Cell < (E) Tissue < (F) Organ < (D) System < (B) Organism
Answer:
<em><u>sympatric speciation and habitat isolation</u></em>
Explanation:
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The dead and decayed plants turn to coal after a million years under high pressure and heat of the earth.
And the petroleum is formed the same but with the dead animals in ocean bed to form petroleum
<span>The scientist is correct. It is part of under water mountain system, called mid-ocean ridge. The ridge consists of chains of mountains linked to one another with long valley. it also consists of openings. it causes for the seafloor spreading.</span>