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Setae on the legs of krill and other small crustaceans help them to gather phytoplankton. It captures them and allows them to be eaten. Setae on the integument of insects are unicellular, meaning that each is formed from a single epidermal cell of a type called a trichogen, literally meaning "bristle generator". They are at first hollow and in ...
Preening brush: a dense cluster of setae near the ventral tip of the posterior metatarsi; called a preening comb when present as a transverse row of setae. [22] Procurved: Used to describe a structure which is curved in such a way that the outer edges are in front of the central part; [22] opposite recurved
Pyrrolizidine alkaloid sequestration refers to the sequestration of one such class of poisonous compounds. seta A stiff chitinous or sclerotised hair or bristle. Also chaeta, cheta setaceous. being like or having the nature of a seta or of setae; setose; setose bearing, or covered in setae. setula Diminutive of seta. A small chitinous hair or ...
They may be irregular or align in two or more rows. The number of rows, the number of setae in each row, the size and the thickness are significant. In many groups, the acrostical setae are replaced by setulae or hairs. prescutellar (psc) two acrostical bristles, more developed than the other acrosticals, inserted in front of the scutoscutellar ...
In most species of bees, the scopa is simply a dense mass of elongated, often branched, hairs (or setae) on the hind leg. When present on the hind legs, the modified hairs are, at a minimum, on the tibia, but some bees also have modified hairs on the femur and/or trochanter.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
The ultrastructure of chaetae is fundamentally similar for all taxa but there is vast diversity in chaetal morphology. [4] Moreover, chaetae bear precise characters for determination of species and taxonomic assessment.
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