Nkebi ahịrịokwu nke 1: Akwụkwọ ya dị ka agịga ma nwee eriri stomatal bụ isi abaxial (n'okpuru arịa phloem) naanị. Nkebi ahịrịokwu nke abụọ: Akwụkwọ ya dị ka agịga ma nwee eriri stomatal bụ naanị abaxial (n'okpuru arịa phloemetal). Ajụjụ: Ọ̀ bụ otu ihe ka ahịrịokwu nke mbụ na nke abụọ pụtara? Ee ma ọ bụ Ee e?
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