Across
- 2. most nitrogen is found in the nitrogen cycle
- 3. Allows bones to move smoothly across each other
- 6. max. population of a species that the environment can sustain is the ______ capacity
- 7. refers to the variety of all organisms that are part of an ecosystems
- 8. the type of Diabetes that the body doesn't produce enough insulin
- 9. Adenosine TriPhosphate
- 11. structures that are similar in characteristics, but different in function.
- 12. Type of muscle is voluntary
- 13. filters out toxins and waste
- 16. energy transfer between trophic levels is only ____ percent efficient
- 17. disapperance of a species from earth
- 19. keystone species that help to control populations
- 22. Type of cellular respiration that does not require oxygen
Down
- 1. Layer of the lead helps to reduce water loss
- 4. White blood cell's main job is to help maintain
- 5. Green pigment that absorbs light energy for photosynthesis
- 6. reactions are those that break large molecules into small ones.
- 10. A stable internal environment
- 12. primary producers their energy
- 14. Bones are ....
- 15. small organs at the ends of the fallopian tubes
- 18. Hemoglobin on red blood cells transport
- 20. Developed Theory of Evolution
- 21. Blood cells are produced in the