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What is the relationship between heterotrophs and photoautotrophs?

What is the relationship between the stomata and photosynthesis?

What is the relationship between Na+ and water in the kidney?

1. Identify the correct statement with reference to human digestive system.

(a) ileum opens into small intestine.

(b) Serosa is the innermost layer of the alimentary canal.

(c) ileum is a highly coiled part.

(d) Vermiform appendix arises from duodenum

Explain the two roles of the enzyme carbonic anhydrase (CAH) as it relates to two of the primary functions of the kidney? 

What is ESR