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6. Sea cows have cheek teeth adapted to

  • grinding cellulose rich vegetation
  • feeding on epibionts
  • feeding on epibionts and cellulose rich vegetation

7. Are seagrass meadows widely distributed?

  • Yes
  • No

8. The lack of stability and resuspension of sediment in meadows means

  • diversity is rich and abundant
  • organic carbon can be preserved in soils for millannia
  • seagrasses are never static and not a permanent feature on a geographic timeline

9. What do seagrasses prefer?

  • Clear light water with mild currents
  • murky water with little current activity
  • Light water with strong currents

10. An estimated total area of ??? was lost globally between 1879 and 2006

  • 3370km2
  • 2490km2
  • 4560km2

11. Which researchers found microplastic trapped in seagrass sediment?

  • (Huang et al,. 2019)
  • (Short et al,. 2019)

12. Green turtles forage during

  • day time
  • night time

13. Losses of two football pitches every

  • week
  • day
  • minute
  • hour

14. Most seagrass meadows require

  • soft sandy-mud substratum
  • hard rocky-sand substatum
  • soft mud substatum

15. Algae, sponges, hydroids, sea anemones, snails and bryozoans are examples of

  • Epibionts
  • Parasites
  • Epiphytes

16. Some species form reefs, protecting shore lines

  • True
  • False

17. Seagrasses bury what % of the estimated organic carbon buried by the ocean

  • 1%
  • 10%
  • 5%
  • 0.5%

18. Most seagrasses are marine sub-tidal

  • True
  • False

19. Leaves with sheaves live in

  • saline rich environments
  • low energy environments
  • high energy environments
  • predator rich environments

20. disappearance of seagrass meadows means the loss of carbon sinks and the creation of carbon source

  • True
  • False