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