Answer:
Frogs have smooth or slimy skin that is moist, whereas toads have thicker, bumpy skin that is usually dry. All toads are poisonous, while frogs are not.
If the cell were a factory, the lysosomes would function as the maintenance crew. The lysosome breaks down the enzymes and keeps the cell from working. The factory can not operate without the maintenance crew. The maintenance crews make sure that the factory is well conditioned to work.
Molecule, organelle, cell, tissue, organ, organ system, organism, community, population, ecosystem, biosphere