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Rainbow [258]
3 years ago
8

PLEASE HELP!!!

Biology
1 answer:
mars1129 [50]3 years ago
5 0

Answer:  B:17,190 years

Explanation: After 5730 years ( first half life) 70 /2 = 35 mg decays and 35 g remains left. After another 5730 years ( two half lives or 11460 years) 35 /2 = 17.5mg decays and 17.5 g remains left . After another 5730 years ( three half lives or 17190 years) 17.5 /2 = 8.75mg decays and 8.75g remains left.

i know this is off topic but, can you go to my quetions, to see if you can answer any?(or if you know anyone who can answer them)

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The oris muscle is derived from the other facial muscles inserted into the lips and join with the lips controlling the movement of the lips. The muscle controls the movement by pulling down the corners of the mouth and the lips along with other muscles like the mentalis,  the triangularis and the risorius.

Thus, Orbicularis oris muscle is the correct answer.

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