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