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lozanna [386]
3 years ago
11

Which eras ended with a mass extinction?

Biology
1 answer:
-Dominant- [34]3 years ago
6 0
B. Mesozoic and Paleozoic

-Good luck!
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Answer:

competition

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because one die and the other lives

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parasympathetic control of heart rate of heart rate is most noticeable with the right vagus nerve inhibiting the _______​
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Answer:

Sinoatrial Node?

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Blood pressure drops whenever the vagus nerge is stimulated. In fact, babies have to constantly be monitored for position, becase cranial pressure can stimualte the vagus nerve and cut heart circulation by inhibitng the Sinoatrial node.

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joja [24]
Organ system is the answer
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What is the molar mass of a substance?
Ipatiy [6.2K]

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