MIME
发表于 2025-3-28 18:39:14
Order and Defects in the Silkmoth Chorion, A Biological Analogue of a Cholesteric Liquid Crystal, in many ways, to the cuticle, the chorion protects the egg and developing embryo from physical assaults of predators, as well as from the more passive dangers of dessication and drowning, while permitting air exchange and the penetration of sperm. The chorion is produced by the monolayer of follic
贪婪性
发表于 2025-3-28 19:14:10
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卵石
发表于 2025-3-29 01:40:33
Morphological Analysis of Transcription in Insect Embryosing development. In particular, it would be of interest to learn whether or not transcriptional events are involved in cell determination. Another motivation is to understand mechanisms of transcriptional control. These mechanisms are especially amenable to analysis in the early embryonic stages of
anticipate
发表于 2025-3-29 05:50:48
The Morphogenesis of Imaginal Discs of ,opment as small invaginations of the epidermis. From then on, the discs follow developmental sequences distinct from those of larval tissues. As the larval epidermis passes through successive molts, with the secretion and apolysis of cuticle, the imaginal discs remain undifferentiated but grow rapid
Salivary-Gland
发表于 2025-3-29 09:14:22
Fine Structure of the Cuticle of Insects and Other Arthropodspidermis, from which the several layers of the cuticle are secreted. During the life cycle of an insect the process of formation and shedding of the cuticle occurs several times, which permits increases in body size and changes in form.
表皮
发表于 2025-3-29 15:28:45
The Structure and Development of Insect Connective Tissuess tissues, basement membranes, and other less structured components. Despite their variety, connective tissue matrices contain a limited number of components, the main ones being collagens, proteoglycans, glycoproteins, and elastin with its associated microfibrillar protein. All these constituents a
nocturnal
发表于 2025-3-29 15:52:45
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Cervical-Spine
发表于 2025-3-29 20:31:39
Insect Intercellular Junctions: Their Structure and Developmentes of the junctions by which their cells are associated. Although the Schleiden and Schwann cell theory holds that cells are independent units, it has gradually become apparent that they are in fact joined together in a variety of ways, depending, it seems, on the function of the tissue under invest
arsenal
发表于 2025-3-30 01:40:38
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Esophagus
发表于 2025-3-30 07:49:10
Book 1982electronmicroscopic studies on insect cells were summarized in an organized and integrated fashion for the first time, and the ultrastructural characteristics of different specialized cells and tissues were abundantly illustrated in the 117 plates this monograph contained. In the intervening period