19. What are examples of the
ecological and economic
importance of molluscs?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Molluscs are important in
several food in ecosystems.Many
marine are part of common
human diet, octopus and squid,
appreciated in the , and
oysters and , consumed all
around world. Besides molluscs
are part of food industry, pearls
by oysters have commercial
value.