After eating a meal, blood sugar levels are elevated. The body secretes hormones to help absorb excess sugar into cells and return blood sugar levels to normal. This is an example of 1.excretion
2.regulation
3.synthesis
4.reproduction

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Explain that newton first law,second law and third law of motion?