Answer:
Epinephrine
Explanation:
Epinephrine, which is also referred to as adrenaline, is the active sympathetic hormone that is secreted by the medulla of the adrenal glands into the bloodstream to initiate the body’s fight-or-flight response to stress or threat, causing increased blood pressure, sugar metabolism, heart rate, breathe rate, muscle strength as well as sweat. Pete's sighting of a bear as a threat stimulates the sympathetic nervous system to initiate the secretion of epinephrine which brings about the fight-or-flight response of the body to increase alertness of the body.
The answer is:C
Explaination
Answer:
A
Explanation:
Kenya has the most rapid increasing population
The
molecular clock tracks down nucleotide sequences for DNA or amino acids that
contain sequences of proteins. Scientists use this to deduce the time in
history where life forms possibly have diverged. This technique is also known
as a gene clock or an evolutionary clock.
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