Living in the Environment 18th Edition by Tyler Miller,Scott Spoolman

Exercise 18

What is the key concept for this section What major ecosystem and economic services are provided by marine systems What are the three major life zones in an ocean Define and distinguish between the coastal zone and the open sea. Distinguish between an estuary and a coastal wetland and explain why each has high net primary productivity. Explain the ecological and economic importance of coastal marshes, mangrove forests, and sea-grass beds.