1. D
2. C
3. B
4. D
5. A
6. --
7. D
8. B
9. --
10. C
11. --
12. --
13. B
14. B
15. B
16. A
17. B
18. --
19. A
20. D
21. C
22. D
23. A
24. B
25. C
26. --
27. B
28. D
29. D
30. C
Ok. So what you want to do is -20 because it says went down 20 ft. Then -3 more. + 7. -20+-3=-23+-7=16 So you get 16. I hope that helps.
Answer:
heterotrophs
Explanation:
they cannot make food on their own.
Plants and other autotrophs absorb nutrients from soil and water. Autotrophs are organisms that can make their own food. The most important nutrients they need are carbon, hydrogen, and oxygen. Other nutrients needed by plants are nitrogen, phosphorous, potassium, calcium, magnesium, and sulfur.
Answer:
Energy drives the cycling of matter within and between systems. Energy drives the cycling of matter within and between systems in aerobic and anaerobic conditions. Photosynthesis and cellular respiration (including anaerobic processes) provide most of the energy for life processes.
