forms+of+good-breeding
61Spawn (biology) — The spawn (eggs) of a clownfish. The black spots are the eyes developing. Spawn refers to the eggs and sperm released or deposited, usually into water, by aquatic animals. As a verb, spawn refers to the process of releasing the eggs and sperm,… …
62arctic — arctically, adv. /ahrk tik/ or, esp. for 7, /ahr tik/, adj. 1. (often cap.) of, pertaining to, or located at or near the North Pole: the arctic region. 2. coming from the North Pole or the arctic region: an arctic wind. 3. characteristic of the… …
63Evolution — Evolution (History and Scientific Foundation) † Catholic Encyclopedia ► Evolution (History and Scientific Foundation) The world of organisms comprises a great system of individual forms generally classified according to structural… …
64Sexual selection — This article is about the evolutionary concept. For the selection of the sex of offspring, see sex selection. Goldie s Bird of paradise: Ornamented male above; female below. Paradesia decora by John Gerrard Keulemans (d.1912) Sexual selection, a… …
65Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… …
66dog — dogless, adj. doglike, adj. /dawg, dog/, n., v., dogged, dogging. n. 1. a domesticated canid, Canis familiaris, bred in many varieties. 2. any carnivore of the dogfamily Canidae, having prominent canine teeth and, in the wild state, a long and… …
67sex — /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… …
68Health and Disease — ▪ 2009 Introduction Food and Drug Safety. In 2008 the contamination of infant formula and related dairy products with melamine in China led to widespread health problems in children, including urinary problems and possible renal tube… …
69community ecology — Introduction study of the organization and functioning of communities (community), which are assemblages of interacting populations of the species living within a particular area or habitat. As populations of species interact with one …
70Zoo — A zoological garden, shortened to zoo, is an institution in which living animals are exhibited in captivity. In addition to their status as tourist attractions and recreational facilities, modern zoos may engage in captive breeding programs,… …
