Answer:
The bulging eyes of most frogs allow them to see in front, to the sides, and partially behind them. The eyes help push the food down its throat. Eyes positioned atop the head give frogs a field of vision of almost 180 degrees. This peripheral vision helps them spot predators and prey.
Explanation:
It is because all these three elements contain ionic properties and they have only one element in their outermost shell
B .How organisms could change .
