Answer:
A) shell
B) Belemnotheutis
Explanation:
The Belemnotheutis is an extinct coleoid cephalopod genus from the middle and upper Jurassic. It has an inner shell made up of a conical phragmocone apically surrounded by a thin rostrum or guard, which is similar in structure and evolutionary origin to true belemnites' bullet-shaped rostrum, a small forward projected proostracum, and ten arms of similar length hooks.
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Determine the reaction order, the rate constant, and the units of the rate constant.
0th order: kt = [A]0– [A]
1st order : kt = ln[A]0– ln[A]
2nd order” kt = 1/[A] – 1/[A]0
k*30 = ln[0.500] – ln[0.319]
k = 0.0150
k*60 = ln[0.500] – ln[0.203]
k = 0.0150
reaction is 1storder, rate constant = 0.0150 s<span>-1</span>
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A mexico i think not shure if not A then its C