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