Biology Ecosystems

2. The green pigment found in plants that absorbs light energy
5. The gas needed for aerobic respiration
6. The organ of the body where the lactic acid is broken down using extra oxygen
7. All food chains start with one of these and they are normally plants
8. The type of respiration that requires oxygen
11. The alcohol produced during fermentation
12. Anaerobic respiration in plants and fungi is also called this.
13. The process all organisms use to release energy from food (glucose)
15. All living organisms release this from glucose during respiration
16. The build up of toxic substances as you go along a food chain

1. The gas needed for photosynthesis
3. Organisms in food chains that eat other organisms
4. The type of respiration that takes place in animals on top of aerobic respiration
7. The process plants use to produce their food
9. How all organisms in a food web depend on each other
10. The organelle that contains the chlorophyll
14. The chemical produced due to anaerobic respiration in animals
17. The type of energy plants need to carry out photosynthesis