- 1. What is the primary source of energy for phytoplankton?
A) Chemical energy B) Sunlight C) Volcanic heat D) Seawater
- 2. What is the process of zooplankton feeding on phytoplankton called?
A) Burrowing B) Grazing C) Erosion D) Pollination
- 3. Which organism is considered a primary producer in the plankton community?
A) Jellyfish B) Phytoplankton C) Herring D) Shrimp
- 4. What type of plankton feeds on other plankton as part of the marine food chain?
A) Bacterioplankton B) Zooplankton C) Phytoplankton D) Virioplankton
- 5. What is the dominant form of plankton in highly productive coastal waters?
A) Shrimp B) Copepods C) Krill D) Diatoms
- 6. What is the process by which zooplankton migrate vertically in the water column called?
A) Static suspension B) Sedimentation C) Diel vertical migration D) Horizontal dispersion
- 7. Which of the following is a common feeding strategy of zooplankton?
A) Filter feeding B) Predation C) Photosynthesis D) Scavenging
- 8. What structures do some phytoplankton have that help them regulate their buoyancy?
A) Muscles B) Stingers C) Gas vacuoles D) Eyes
- 9. Plankton are primarily found in which habitat?
A) Tundras B) Mountains C) Aquatic environments D) Deserts
- 10. Which of the following is not a type of plankton?
A) Phytoplankton B) Jellyfish C) Zooplankton D) Bacterioplankton
- 11. Which of the following is a type of harmful algal bloom caused by excess plankton growth?
A) Green tide B) Blue tide C) Red tide D) Yellow tide
- 12. What is the general term for small marine organisms that drift with ocean currents?
A) Krill B) Shark C) Tuna D) Plankton
- 13. What is the term for tiny particles that are transported by ocean currents and provide a surface for plankton to attach to?
A) Coral reefs B) Marine snow C) Seaweed D) Mangroves
- 14. What is the term for plankton that spend their entire life cycle as part of the plankton community?
A) Zooplankton B) Meroplankton C) Phytoplankton D) Holoplankton
- 15. What type of plankton are bacteria that drift in the water column?
A) Zooplankton B) Bacterioplankton C) Virioplankton D) Phytoplankton
- 16. What is the term used to describe plankton that can move against currents?
A) Nekton B) Benthos C) Tychoplankton D) Holoplankton
- 17. What is the main gas used by plankton in the process of photosynthesis?
A) Oxygen B) Nitrogen C) Hydrogen D) Carbon dioxide
- 18. Plankton play a crucial role in the global carbon cycle by performing which process?
A) Respiration B) Chemical weathering C) Decomposition D) Photosynthesis
- 19. What is the term for plankton that spend only part of their life cycle as part of the plankton community?
A) Bacterioplankton B) Zooplankton C) Meroplankton D) Holoplankton
- 20. Which of the following is a type of phytoplankton that can produce bioluminescence?
A) Roundworms B) Flatworms C) Dinoflagellates D) Amoebas
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