Dictionary of ichthyology. 2009.
prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood. [1885 90] * * * … Universalium
prothoracic gland — noun : one of a pair of thoracic endocrine organs in some insects that control molting * * * either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood. [1885 … Useful english dictionary
polster — the hatching gland rudiment when it underlies the forebrain during the early segmentation period. Also called pillow … Dictionary of ichthyology
Hoyle's organ — (MOLLUSCA: Cephalopoda) In embryonic Sepia, a distinct set of cells in an anchor shaped complex at the site of the shell sac closure; a hatching gland that produces a proteolytic enzyme that dissolves the chorion and surrounding envelope … Dictionary of invertebrate zoology
mir-184 — microRNA secondary structure and sequence conservation Identifiers Symbol mir 184 Rfam … Wikipedia
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
sex — /seks/, n. 1. either the male or female division of a species, esp. as differentiated with reference to the reproductive functions. 2. the sum of the structural and functional differences by which the male and female are distinguished, or the… … Universalium
Cephalopod — Cephalopods Temporal range: Devonian – Recent[1] (Stem groups from Cambrian)[2] … Wikipedia
bird — birdless, adj. /berrd/, n. 1. any warm blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard shelled egg. 2. a fowl or game bird. 3 … Universalium
Bird — /berrd/, n. Larry, born 1956, U.S. basketball player. * * * I Any of the warm blooded, beaked vertebrates of the class Aves, including more than 9,600 living species. A covering of feathers distinguishes birds from all other animals. Birds have a … Universalium
