Putanga 1: Ko ngā rau he tohu-abaxial, ā, he pēnei i ngā kākano stomatal tuatahi (i raro i ngā ipu phloem) anake. Putanga 2: He rite nga rau ki te ngira, a, ko nga roopu stomatal tuatahi anake te abaxial (i raro i nga ipu phloemetal). Pātai: He ōrite te tikanga o te rerenga 1 me te rerenga 2? He Ae, he Kore rānei?
Kāore