Across
- 3. organisms that drift in water
- 5. Plantlike protists
- 8. Microscopic, free-floating, autotrophic organisms that function as producers in aquatic ecosystems
- 10. Process that requires oxygen
- 12. reproduce by inserting their DNA into the DNA of the host cell
- 15. small free-floating animals that form part of plankton
- 17. A kingdom made up of nongreen, eukaryotic organisms that have no means of movement, reproduce by using spores, and get food by breaking down substances in their surroundings and absorbing the nutrients
- 18. Organisms that make their own food
- 20. An organism that cannot make its own food.
- 23. the first producers of energy-rich compounds that are later used by other organisms
- 24. A red, orange, or brown coloration of water caused by a bloom.
- 25. break down dead organic matter
- 26. not capable of reproduction without host cell; contain DNA but cannot reproduce unless in a living cell
Down
- 1. the production of light by means of a chemical reaction in an organism
- 2. whole life as plankton
- 4. spends only a portion of life as plankton
- 6. Cells that contain nuclei
- 7. A unicellular organism that lacks a nucleus and membrane bound organelles
- 9. A unicellular photosynthetic alga with a unique glassy cell wall containing silica
- 11. organism that uses energy from sunlight to convert carbon dioxide and water to carbon compounds
- 13. A group of protozoans that move by waving tiny, hair-like organelles called cilia.
- 14. use reverse transcriptase to copy their RNA genome into DNA
- 16. viral infected cells spill contents and release large amounts of organic matter that can be utilized by other organisms
- 19. Process that does not require oxygen
- 21. amoeba like protist that has a shell and looks like a snail
- 22. "the earliest ones"; kingdom including unicellular and multicellular eukaryotes