Integument and Ectodermal Derivatives

Soon after definitive dorsal closure, the outer embryonic ectoderm differentiates into epidermis, which in embryos of most insects then secretes the first instar larval cuticle. In some insects, however, one or more embryonic cuticles are produced which may be shed before or at hatching. As in larvae, production of the cuticles in embryos appears to be regulated by molting hormone (Section 9).

External sensilla generally develop from a dividing precursor epidermal cell, whose daughter cells then differentiate to form the sensory neuron and accessory cells (Chapter 12). The axon of the sensory neuron finds the appropriate interneurons within the central nervous

Beekeeping for Beginners

Beekeeping for Beginners

The information in this book is useful to anyone wanting to start beekeeping as a hobby or a business. It was written for beginners. Those who have never looked into beekeeping, may not understand the meaning of the terminology used by people in the industry. We have tried to overcome the problem by giving explanations. We want you to be able to use this book as a guide in to beekeeping.

Get My Free Ebook

Post a comment