Insulin and glucagon are both hormones that work opposite of eachother explain what each of these hormones regulate

Insulin controls blood sugar by lowering it, glucagon tells the liver to release its stored sugar into the blood stream, increasing blood sugar.

The littoral zone. . .

Alright, i'm gonna try to explain this as good as possible. the law of conservation is like a collection overtime. it never changes though. no matter how you change the constituent parts.