Intercalary meristem is seen in

In a mango tree,metabolic energy is most extensively used in

Root apical meristem occupies the ...$A$... of roots,while shoot apical meristem occupies the distant most region of the ...$B$... axis.

Histogen theory states that epidermis is derived from the

Apical meristems are present at the

According to the $Apical$ $Cell$ $Theory$, the shoot apex contains a single apical cell with three cutting faces. This theory applies to some higher algae, bryophytes, and pteridophytes, but not to gymnosperms and angiosperms. Who proposed this theory?