Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology 129biotic potential 1. The reproductive potential of a species. 2.An estimate of the rate of increase of a species in the absenceof predators, parasites or other inhibiting factors.biotonus n. [Gr. bios, life; tonos, tension] The ratio betweenassimilation and dissimilation of a hypothetic unit, cell, organor organelle (biogen).biotope n. [Gr. bios, life; topos, place] 1. An area that is uniformin its main climatic, soil and biotic conditions. 2. Anecological niche with suitable conditions for certain faunaand flora. see biochore, core.biotular spicules (PORIF) Amphidiscs; having scalloped disksthat may occur at both ends of the rhabdome.biotype n. [Gr. bios, life; typos, type] A group of genotypicallyidentical individuals; frequently used interchangeably withthe term race.biovular see binovularbiovulate a. [L. bis, two; ovum, egg] Having two ovules.biparasitic a. [L. bis, two; parasitus, one who eats at the tableof another] Being a parasite upon or in a parasite.biparental a. [L. bis, two; parentalis, parent] Pertaining to orderived from two parents.biparietal a. [L. bis, two; paries, wall] Provided with two paries.biparous a. [L. bis, two; parere, to beget] Producing twoyoung at a time.bipartite a. [L. bis, two; partitus, divided] Having two distinctparts; bifid.bipartite uterus A uterus with paired, tubular uteri that fuseat the point of junction with the vagina.bipectinate a. [L. bis, two; pecten, comb] Having branches ontwo sides like the teeth of a comb.bipectunculate a. [L. bis, two; pectunculus, small scallop] Minutelypectinate.bipennate a. [L. bis, two; penna, feather] Twice pinnate. bipenniforma.bipinnaria larva (ECHINOD: Asteroidea) The free-swimming,