Petrification occurs when: (A) soft body parts are preserved
(B) shell and bone are replaced with minerals
(C) animals are preserved in oil seeps
(D) oxygen comes in contact with the dead organism

(B) shell and bone are replaced with minerals

Explanation:

Petrification is simply turning into stones. It is one of the ways of fossilization which helps to preserve an organism from decay and total loss from the stratigraphic record.

This process is therefore known as petrification.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms

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