What type of relationship exists between two organisms if both of them benefit from the relationship? A: Commensalism

B: Competition

C: Mutualism

D: Parasitism

Which is the best way to define a common in environmental science a. a worthless resource b. shared resource c. a rare resource d. a typical resource

The zone, which exists from a depth of 0 to 600 feet, is home to the majority of ocean life.

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