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 GI tract consists of mouth, esophagus, stomach, small intestine, large intestine, and anus,
<h2>Pathway of digestion</h2>
The GI tract is a series of hollow organs that is joined in a long, twisting tube from mouth to the anus. The GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus are the hollow organs while on the other hand, the liver, pancreas, and gallbladder are the solid organs of the digestive system.
The food enters through mouth which moves after chewing to esophagus then to the stomach. After digestion, all the nutrients are absorbed whereas waste materials are send to the small and then large intestine and finally to anus.
Learn more about digestion here: brainly.com/question/882651
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Because facilitated diffusion is a passive process, it does not require energy expenditure by the cell. Water also can move freely across the cell membrane of all cells, either through protein channels or by slipping between the lipid tails of the membrane itself.
hope this is the right answer......
Answer: yes\
correct me if im wrong :sob:
