What are the division based on

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

Define adaptation. why do organisms adapt? give an example.