A Salmon is a high-activity round fish.
Answer: changed by molecular oxygen
Explanation:
Biologically induced molecular oxygen (dioxygen, O2) started to accumulate in Earth's atmosphere and changed Earth's atmosphere from a weakly reducing atmosphere to an oxidizing atmosphere.
Answer:
50 percent
Explanation:
The efficiency of ramp can be found by using this formula
(Output work/input work)*100.
Amounts of work to lift up = 600j
Amount of work bro take up to same height = 1200j
Efficiency of ramp = (600j/1200j) * 100
= 0.5 x100
= 50 percent
Therefore from the calculations above, the efficiency of this ramp is 50 percent
In response to c. acid in duodenum, the hormone secretin is released by endocrine cells in the duodenal mucosa.
<h3>What releases secretin in the duodenum?</h3>
Secretin is a polypeptide that contains 27 amino acids. In response to H+ and fatty acids in the lumen, S cells in the duodenum produce secretin. Particularly, a pH of less than 4.5 indicates the entry of stomach contents, which starts the secretin release.
Secretin, a digestive hormone that controls gastric acid secretion and pH levels in the duodenum, is released by the wall of the upper portion of the small intestine (the duodenum).
A pancreatic fluid that is high in bicarbonate is secreted when secretin is present (45). By interacting with pancreatic ductal cells, secretin enters the bloodstream or intestinal lumen and increases the production of bicarbonate, which lowers the pH of the gastric chyme as it enters the small intestine.
Learn more about secretin here:
brainly.com/question/9225171
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Answer:
25 miles
Explanation:
<em>Average velocity is displacement divided by time interval of the displacement.</em>
<em> </em><em>so </em>
<em>Here </em><em>average </em><em>velocity </em>
<em>=</em><em> </em><em>5</em><em>0</em><em> </em><em>/</em><em>2</em><em> </em>
<em>=</em><em> </em><em>2</em><em>5</em><em> </em><em>miles </em><em> </em>
<em>Hope </em><em>it </em><em>will </em><em>help </em><em>:</em><em>)</em>
