transitional layer
71Cortex — The outer portion of an organ. The outer portion of the adrenal gland is called the adrenal cortex; the outer portion of the cerebrum is the cerebral cortex (a key part of the brain); the outer part of the kidney is the renal cortex (it lies just …
72Eritrea — <p></p> <p></p> Introduction ::Eritrea <p></p> Background: <p></p> The UN established Eritrea as an autonomous region within the Ethiopian federation in 1952. Ethiopia s full annexation of Eritrea… …
73Montreal Protocol — For other similarly named agreements, see Montreal Convention (disambiguation). The largest Antarctic ozone hole recorded as of September 2006 The Montreal Protocol on Substances That Deplete the Ozone Layer (a protocol to the Vienna Convention… …
74Mediterranean Sea — a sea surrounded by Africa, Europe, and Asia. 2400 mi. (3865 km) long; 1,145,000 sq. mi. (2,965,550 sq. km); greatest known depth 14,436 ft. (4400 m). Also called Mediterranean. * * * Inland sea enclosed by Europe, Africa, and Asia. Its west east …
75Cloud — For other uses, see Cloud (disambiguation). Cumulus cloudscape over Swifts Creek, Australia A cloud …
76Corneal epithelium — Vertical section of human cornea from near the margin. (Waldeyer.) Magnified. 1. Epithelium. 2. Anterior elastic lamina. 3. substantia propria. 4. Posterior elastic lamina. 5. Endothelium of the anterior chamber. a. Oblique fibers …
77skeleton — skeletonless, adj. skeletonlike, adj. /skel i tn/, n. 1. Anat., Zool. the bones of a human or an animal considered as a whole, together forming the framework of the body. 2. any of various structures forming a rigid framework in an invertebrate.… …
78soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …
79respiration, human — ▪ physiology Introduction the process by which oxygen is taken up and carbon dioxide discharged. The design of the respiratory system The human gas exchanging organ, the lung, is located in the thorax, where its delicate tissues are… …
80Darfur — For other uses, see Darfur (disambiguation). Darfur دار فور Capital North Darfur: Al Fa …
