two pairs of eyes are better than one
21Spider — Taxobox name = Spiders image width = 250px image caption = an Orb weaver spider, Family: Araneidae regnum = Animalia phylum = Arthropoda subphylum = Chelicerata classis = Arachnida ordo = Araneae ordo authority = Clerck, 1757 diversity link =… …
22eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
23photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such …
24human behaviour — Introduction the potential and expressed capacity for physical, mental, and social activity during the phases of human life. Human beings, like other animal species, have a typical life course that consists of successive phases of… …
25Wikipedia:Featured article candidates — Here, we determine which articles are to be featured articles (FAs). FAs exemplify Wikipedia s very best work and satisfy the FA criteria. All editors are welcome to review nominations; please see the review FAQ. Before nominating an article,… …
26HEBREW GRAMMAR — The following entry is divided into two sections: an Introduction for the non specialist and (II) a detailed survey. [i] HEBREW GRAMMAR: AN INTRODUCTION There are four main phases in the history of the Hebrew language: the biblical or classical,… …
27charadriiform — ▪ bird order Introduction any member of the large group of birds (bird) that includes the sandpipers (sandpiper), plovers (plover), gulls (gull), auks (auk), and their relatives. These birds form an important and familiar segment of the… …
28nervous system, human — ▪ anatomy Introduction system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …
29annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… …
30dinosaur — /duy neuh sawr /, n. 1. any chiefly terrestrial, herbivorous or carnivorous reptile of the extinct orders Saurischia and Ornithischia, from the Mesozoic Era, certain species of which are the largest known land animals. 2. something that is… …
