Approach: if you suspect someone may need a hand, walk up, greet them and identify yourself. Help them out.
An agonist will active receptors, causing a physiological response. (Pretty much, it acts like a neurotransmitter). On the other hand, an antagonist will BLOCK a receptor, preventing a neurotransmitter from binding on that receptor, therefore blocking a physiological response.
Agonist --> acts like a neurotransmitter and elicits a responseAntagonist --> BLOCKS a neurotransmitter by binding on to the receptor, therefore blocking a response.
<span>Ventricular fibrillation when the impact occurred during a critical portion of the cardiac cycle. Hope this helps! :) </span>
Cancer is the noncommunicable disease