Energy Flow

2. Mass of living tissue
3. Responsible for most of the ocean's primary production
6. A wide variety of organisms that share a habitat and lifestyle
8. Have one or two whip-like flagella
11. An organism that consumes primary consumers
12. Live part of their life as plankton
13. Has a rigid cell wall made of silica
14. Most efficient ecosystem on earth
17. Consumes autotrophs/producers
18. Better represents the flow of energy in nature than a trophic pyramid
20. Also called cyanophytes, bacteria, with chlorophyll
22. Decomposition renews____materials necessary for energy to enter life through primary production; completes materials cycle

1. Physiological or biological necessities that affect survival
4. Have an internal support structure of silica
5. Silica cell wall of a diatom
7. Coastal temperate and subpolar regions are ocean regions that have the ___primary productivity
8. Break down organic material into an inorganic form
9. Spend entire life as plankton
10. Happens when an autotroph receives too much or too little light
15. Time of explosive reproduction and growth of plankton species
16. _____depth is when the amount of carbohydrates produced by and autotroph equals the amount required for its respiration
19. Percent of energy that transfers from each trophic level
21. Most efficient photosynthesizes