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
nitrogen fixation and ammonification
Organic matter in soil is called humus.
1. nucleus--> this is where the formation of ribosomal subunits.2. cytoplasm---> this is where the attachment of an amino acid to tRNA.3. Free ribosomes---> this where the translation of cytoplasmic proteins happens.4. chromatin---> this is where transcription and RNA processing happens.5. ribosomes---> translation of secreted proteins
Explanation:
When there are low oxygen levels in blood, the blood pH tends to lower. This is because there is an increased level of carbon dioxide in the blood that is converted to carbonic acid by carbonic anhydrase. When carbon acid dissociates, into H⁺ and HCO₃⁻ . The H⁺ influences the increase in acidity of the blood. The kidneys will excrete most of the H⁺ and retain most of the HCO₃⁻ to help maintain the right blood pH. However, most of blood pH homeostasis is maintained largely by the lungs.
Learn More:
For more on function of kidneys check out;
brainly.com/question/1285333
brainly.com/question/909694
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