Answer:
I think it would be like how the earth formed and other planets except way smaller but I'm not sure
a they teach you in school
4 and 5 are correct,
Hormones are Endocrine
Fingernails are Integumentary
Sperm is Reproductive
Bladder is Excretory
Killing Pathogens is Immune
nutrient that we consume have chemical energy stored within their chemical bond. This nutrient molecules are our main source of energy for metabolism.
chemical energy is potential of chemical substances to undergo transformation through a chemical reaction to transform other chemical substance. food energy is released during digestion whereby molecules in our food are broken into smaller pieces.As bond between these atom loses a chemical reaction occurs.
