I believe it's the last two. "makes the lungs able to fill more completely" and "helps the blood vessels dilate more easily" hope this helps, have an amazing day :)
Answer:
In this scenario, the green light is a(n) <u><em>signal</em></u>.
Explanation:
In the above scenario, with time, the pigeon has learnt that he will be rewarded only when the green light is on. Such a condition is known as learned behaviour. In the future, the pigeon will only peck the button when the green light is on because he will know that he will be rewarded for pecking the button only when the green light is on. Hence, the green light is the signal for the pigeon to start pecking the button.
Answer: a) respiratory arrest
Explanation: the neuro-muscular blocking agent causes muscles to relax, respiration is vital for oxygen intake and and proper functioning of vital organs. Respiration depends on the diaphragm muscles for the expansion and contraction of the lungs; administration of NMBA can hamper the diaphragm muscles and this could be fatal hence, respiratory arrest should be watched out for.
<em>The cells are striated and multinucleated appearing as long, unbranched cylinders. </em>
