plankton vocab

2. Organisms that obtain their energy by consuming other organisms
5. Planktonic organisms that spend only a part of their life cycle as plankton
7. Zooplankton that remain in the planktonic phase throughout their entire life cycle
9. Larger-sized plankton, visible under a microscope
14. The position an organism occupies in a food chain, indicating its feeding relationship to other organisms
15. Extremely small-sized plankton, smaller than microplankton
16. Microscopic organisms that drift or float in aquatic environments
17. Planktonic organisms that spend their entire life cycle in the planktonic phase
18. The depth in the water column where the rate of photosynthesis equals the rate of respiration
19. A bloom of harmful, often toxic, phytoplankton that can lead to the discoloration of water
20. A close and long-term interaction between different biological species

1. Microscopic, photosynthetic organisms that form the base of the aquatic food chain
3. Small crustaceans that are a common type of zooplankton
4. A rapid increase in the population of planktonic organisms, often causing discoloration of the water
6. Small animals that feed on phytoplankton or other zooplankton
8. Pertaining to the bottom of a body of water; organisms living on or in the substrate
10. A type of phytoplankton with a silica-based cell wall, often shaped like a glass shell
11. Free-swimming aquatic organisms, such as fish and squid, capable of active movement
12. Organisms that produce their own food through processes like photosynthesis
13. Unicellular algae that can be both phytoplankton and sometimes bioluminescent