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xz_007 [3.2K]
3 years ago
13

Approximately twenty-five elements _____.

Biology
2 answers:
Firdavs [7]3 years ago
6 0
Occurs naturally on earth
BARSIC [14]3 years ago
4 0
It occurs naturally on earth.
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Here the difference in the Rh factor only as the blood group O has no antigen on its surface therefore the most possible phenotype for the father as he has son with B negative and a daughter with  O positive.

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