How are birds adapted for flight? A. Their body shape; B. Smooth waxy feathers; C. Hollow bones; D. Beaks

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

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

The first generation of offspring from the cross of two parents is called the a. f1 generation b. f2 generation c. short generation d. p generation