Answer:
The answers that are true are:
1) Small fish such as anchovies and sardines contain the highest amounts of mercury and should be avoided
2) Mercury can poison the nervous system at high enough doses.
Explanation:
Mercury has been found in fishes like anchovies, sharks, king mackerel, sardines and others and these are very harmful for consumption.
Studies have shown the link between high exposure to mercury and central nervous system changes and then damage. It acts by preventing neurons from reaching their site of action in infants brain, loss of cognitive functions, tremors, headaches and eventually death.
