Answer: D. Epinephrine
Explanation:
During perceived danger the fight-or-flight response includes faster heart beat, quickened breath, tense muscles and thought speed up. This co-ordinated set if physiological changes is triggered by two hormones of the adrenal gland, epinephrine and norepinephrine.
The major activities of these hormones is to increase the amount of chemical energy available for immediate use, increase the heart rate and stroke volume and dilate the bronchioles in the lungs, action the raise the rate of oxygen delivery to the cell.
Answer is epinephrine
Answer: (B)
Explanation: They are asking for a comparison between light waves and sound waves.
A and C is wrong because it only says about sound waves
D only says about sound waves
E is completely wrong because they are affected differently in different mediums.
A possible effect of an error during transcription is the wrong amino acid chain, will be produced.
Option D
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The "wrong amino acid chain", will be produced as a possible effect of an error during transcription. A mutated set of proteins will start getting produced. They will have different or faulty functioning. In some cases, they won't have any functions of their own.
To avoid the possibility of an error, the transcript goes through a process of proofreading which further eliminates the chances of a wrong protein being developed.
1. Spherical
2.Rod
3.Spiral
4.Comma