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- 1. Multiple Choice
This is an example of which Class of Cnidarians?
Class Cubozoa
Class Scyphozoa
Class Anthozoa
Class Hydrozoa
- 2. Multiple Choice
The sessile stage of Cnidaria life history
medusa
bell
stalk
polyp
- 3. Multiple Choice
How do cnidarians reproduce?
only sexually
only asexually
both sexually and asexually
genetically reproduced in labs
- 4. Multiple Choicethe area between the high tide and the low tide markbenthic zoneintertidal zonepelagic zoneabyssal zone
- 5. Multiple Choice
Which ocean zone allows plants to grow??
midnight zone
photic zone
twilight zone
intertidal zone
- 6. Multiple Choiceorganisms that live on or in the bottombenthosneustonlittoralheterotrophs
- 7. Multiple Choicethe open water area beyond the continental shelfoceanic zonetidal zonebahyal zoneabyssal zone
- 8. Multiple Choice
MOST sealife lives in the:
Photic zone
Twilight zone
Midnight zone
Deep zone
- 9. Multiple Choice
Phytoplankton are abundant in this ecosystem, because they are buoyant and float in the upper part of the water.
Intertidal zone (high tide)
Ocean (aphotic zone)
Ocean (photic zone)
Intertidal zone (low tide)
- 10. Multiple ChoiceThe intertidal zone of oceanssurrounds continentsis on the coastlinehas tides that rise and fall each dayis the open ocean
- 11. Multiple ChoiceWhat are tiny organisms that float near the surface of the water?planktonorganismsabiotic factorinsects
- 12. Multiple ChoicePlankton that uses photosynthesis:PhytoplanktonZooplankton
- 13. Multiple ChoiceDinoflagellates can cause __________ which is toxic to fish, shellfish and humans.Green TIdeRed TideMalariaAlgal Bloom
- 14. Multiple ChoiceZooplankton are grouped into which kingdom?MoneraProtistaPlantaeAnimalia
- 15. Multiple ChoiceWhich best describes the source of oxygen in ocean water?Oxygen is produced by marine plants in the process of making food.
Oxygen is produced through the exhalations of marine animals.
Oxygen is produced through precipitation falling on the ocean.Oxygen is produced by nodules on the ocean floor. - Answer choicesTagsAnswer choicesTags