Food Uptake And Utilization

FIGURE 16.3. Longitudinal section through crop, proventriculus, and anterior midgut of a cockroach. [From R. E. Snodgrass, Principles of Insect Morphology. Copyright 1935 by McGraw-Hill, Inc. Used with permission of McGraw-Hill Book Company.]

midgut epithelium) (Terra, 1996; Lehane, 1997). This separation of the epithelium from the food improves digestive efficiency by segregating enzymes between the spaces and enabling some enzymes to be recycled (Section 4.2.1).

The PM is generally absent in fluid-feeding insects, for example, Hemiptera, adult Lepidoptera, and bloodsucking Diptera. However, some insects produce the PM only at certain times (e.g., female mosquitoes after a blood meal). Further, as described below, the

FIGURE 16.4. Transverse section through midgut of a locust. [After C. Hodge, 1939, The anatomy and histology of the alimentary tract of Locusta migratoria L. (Orthoptera: Acrididae), J. Morphol. 64:375-399. By permission of Wistar Press.]
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.

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