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