Cycle Shop raises the price of a bicycle to 225% of what it paid to its supplier. Bike Rack raises its retail price to 150% of what it paid to its supplier. But the two prices
ended up the same. What could have been the prices the stores paid to their
suppliers?

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

2. which is the last step in the scientific method?

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.