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dangina [55]
3 years ago
7

A person walks through the woods. A branch falls suddenly, almost hitting him, and his heart suddenly starts racing. What part o

f his nervous system causes his heart to race?
Biology
2 answers:
erma4kov [3.2K]3 years ago
8 0
I believe that would be the Sympathetic and Autonomic nervous system, because that sounds like the fight or flight response.
liraira [26]3 years ago
7 0
Pretty sure it would be the nerves attatched to the heart valve


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To find the extinct species and their divergence of characters can be studied using molecular genetic techniques.

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  • Paleontology is the study of ancient species and their remaining that were found millions of years ago. These species extinction can be found and manipulated to find out the origin or divergence of species from their origin
  • The samples of these species may contains their remains that help the biologist to isolate and analyze their protein or DNA. when the DNA is isolated their sequences can be generated using molecular biology techniques.
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