- germ tract
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The complete detailed history of the germ cells from one generation to the next.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
germ tract
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tract — s. v. circulaţie, trafic. Trimis de siveco, 13.09.2007. Sursa: Sinonime tract s. n., pl. trácturi Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic TRACT s.n. 1. Foaie sau broşură de propagandă. 2. v. tractus. [< … Dicționar Român
Germ cell — Germ cells are progenitors of the gametes. These singled out cells move through the gut to the developing gonads and undergo mitotic proliferation followed by meiosis and differentiation into either eggs or sperm (mature gametes). Plants do not… … Wikipedia
endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… … Universalium
Testicular immunology — is the study of the immune system within the testis. It includes an investigation of the effects of infection, inflammation and immune factors on testicular function. Two unique characteristics of testicular immunology are evident: (1) the testis … Wikipedia
radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… … Universalium
endoderm — The innermost of the three primary germ layers of the embryo (ectoderm, mesoderm, e.); from it is derived the epithelial lining of the primitive gut tract and the epithelial component of the glands and other structures ( … Medical dictionary
reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… … Universalium
integument — /in teg yeuh meuhnt/, n. 1. a natural covering, as a skin, shell, or rind. 2. any covering, coating, enclosure, etc. [1605 15; < L integumentum a covering. See IN 2, TEGUMENT] Syn. 1. cortex, involucre, involucrum. * * * Covering of the body,… … Universalium
Circumcision — This article is about male circumcision. For female circumcision, see Female genital mutilation. Circumcision Intervention Circumcision being performed in central Asia, possibly Turkmenistan c. 1865–1872. Restored albumen … Wikipedia
Biological warfare — For the use of biological agents by terrorists, see bioterrorism. Weapons of mass destruction … Wikipedia
