No because sometimes they have to put animals down and that’s something I, as a full hearted human, could not do.
Answer:
sorry but how can we help as the is no information could you send in a screenshot so we can see the actual question please?
<span>DETERIORATE. With aging, heart does not reamin the very efficient pacemaker. The arteries gets deposited with fats, fibrous tissue develops in them, which leads in slowing down of heart. Further, size of heart increases, which leads to more time in filling up of heart. The muscle cells of the heart also deteriorate. Thus, cardiorespiratory fitness deteriorates. </span>