Answer:
b
Explanation:
its an organism consisting of cells in the form of chromosomes with a distinct nucleus.
Answer:
An old penny rusting
Explanation:
A penny forming rust is the penny being chemically altered and changing form as opposed to dissolving sugar in water, which is still sugar, just mixed with water. It doesn't change the chemical makeup of the water or sugar.
The reactants are like a key that fits into the enzyme forming the lock
Answer: Active transport
Explanation: Active transport is a process of transferring materials with the expenditure of energy