- 1. What is the primary source of energy for phytoplankton?
A) Sunlight
B) Seawater
C) Chemical energy
D) Volcanic heat
- 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) Phytoplankton
B) Virioplankton
C) Zooplankton
D) Bacterioplankton
- 5. What is the dominant form of plankton in highly productive coastal waters?
A) Krill
B) Shrimp
C) Diatoms
D) Copepods
- 6. What is the process by which zooplankton migrate vertically in the water column called?
A) Diel vertical migration
B) Sedimentation
C) Horizontal dispersion
D) Static suspension
- 7. Which of the following is a common feeding strategy of zooplankton?
A) Filter feeding
B) Scavenging
C) Photosynthesis
D) Predation
- 8. What structures do some phytoplankton have that help them regulate their buoyancy?
A) Muscles
B) Eyes
C) Stingers
D) Gas vacuoles
- 9. Plankton are primarily found in which habitat?
A) Tundras
B) Deserts
C) Aquatic environments
D) Mountains
- 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) Yellow tide
B) Blue tide
C) Green tide
D) Red tide
- 12. What is the general term for small marine organisms that drift with ocean currents?
A) Shark
B) Krill
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) Seaweed
B) Coral reefs
C) Mangroves
D) Marine snow
- 14. What is the term for plankton that spend their entire life cycle as part of the plankton community?
A) Holoplankton
B) Meroplankton
C) Phytoplankton
D) Zooplankton
- 15. What type of plankton are bacteria that drift in the water column?
A) Zooplankton
B) Phytoplankton
C) Bacterioplankton
D) Virioplankton
- 16. What is the term used to describe plankton that can move against currents?
A) Benthos
B) Holoplankton
C) Nekton
D) Tychoplankton
- 17. What is the main gas used by plankton in the process of photosynthesis?
A) Carbon dioxide
B) Nitrogen
C) Oxygen
D) Hydrogen
- 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) Meroplankton
C) Holoplankton
D) Zooplankton
- 20. Which of the following is a type of phytoplankton that can produce bioluminescence?
A) Flatworms
B) Roundworms
C) Dinoflagellates
D) Amoebas
|