Across
- 1. A close and long-term interaction between different biological species.
- 6. Free-swimming aquatic organisms, such as fish and squid, capable of active movement
- 7. Small animals that feed on phytoplankton or other zooplankton
- 10. Planktonic organisms that spend only a part of their life cycle as plankton.
- 13. Zooplankton that remain in the planktonic phase throughout their entire life cycle
- 14. Organisms that obtain their energy by consuming other organisms.
- 15. Pertaining to the bottom of a body of water; organisms living on or in the substrate.
Down
- 2. Larger-sized plankton, visible under a microscope.
- 3. The position an organism occupies in a food chain, indicating its feeding relationship to other organisms.
- 4. Microscopic, photosynthetic organisms that form the base of the aquatic food chain
- 5. A rapid increase in the population of planktonic organisms, often causing discoloration of the water.
- 8. Organisms that produce their own food through processes like photosynthesis.
- 9. Microscopic organisms that drift or float in aquatic environments
- 11. A bloom of harmful, often toxic, phytoplankton that can lead to the discoloration of water.
- 12. Planktonic organisms that spend their entire life cycle in the planktonic phase.
