Back aperture
(Science: microscopy) The exit pupil of a microscope objective lens. The objective lens back aperture, which can be examined with a phase telescope or by inserting a bertrand lens, displays the conoscopic interference figure and diffraction patterns.
This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of fruits, fruit dispersal mechanisms, and seed germination. The distinctions between dicots and monocots, the two major groups of flowering plants, are presented in this tutorial...
