Answer:
When blood glucose level rises beyond the threshold levels, the pancreas secrets hormones insulin. The latter ensures entry of glucose into the cells through Glut transporters for cellular utilization, therefore reducing the blood levels., and promotes storage as glycogen in the liver and muscles.
How ever if the glucose levels drops below the set point, an hormone glucagon is also produce by the pancreas to cause the liver o withdrawal and breakdown glucose storage as glycogen back to glucose thus raising the blood glucose level back to the normal levels.
This is an example of negative feedback mechanism, because the increase in the input levels (blood glucose levels) brings about a counter mechanisms (insulin secretions)as output , to reduce the elevated levels by promoting entry into the cells,, thus bringing the levels to threshold levels.
Thus insulin is acting in a negative feedback mechanism to control blood glucose levels
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Answer:
B. the long beak helps the bird eat insects.
The ecosystem is defined as the stable interaction of biotic and abiotic factors in the surroundings. The intertidal is a zone of ecosystem found between land and water.
<h3>What is the Intertidal Zone of Ecosystem?</h3>
- The intertidal zone is defined as the point or site where the ocean meets the land between high and low tides. The zone can be found at any point where the land meets the ocean.
- The ecosystem found in the intertidal zones are estuaries, tide pools, and salt marshes.
Thus, the intertidal zone supports the ecosystem of marshes, tidal pools, and estuaries.
Learn more about the <u>ecosystem </u>here:
brainly.com/question/1673533
I am not thinking of a creature but of a tree which is the gingko tree which was in existence back 200 million years ago and there is one on a street where we lived in Vancouver BC and they grow in various parts of the world still. The coelocanth is a prehistoric fish which still lives in the sea also. I think that evolutionists would view such living 'fossils' as proof that these organisms were so well adapted to a wide range of environments or were able to find environments that they originally thrived in that they could survive so long. Also, probably the longer they survived changed conditions the tougher they would get. A creationist would say aha that shows that species don't change and evolve which of course would deny the overwhelming evidence of the change in species through time such as amongst man's ancestors.
Answer:
A. The prism's index of refraction for violet light is greater than 1.35.
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