Central America — Central American. continental North America, S of Mexico, usually considered as comprising Guatemala, Belize, El Salvador, Honduras, Nicaragua, Costa Rica, and Panama. 18,600,000; 227,933 sq. mi. (590,346 sq. km). * * * Southern portion of North… … Universalium
plant disease — ▪ plant pathology Introduction an impairment of the normal state of a plant that interrupts or modifies its vital functions. All species of plants, wild and cultivated alike, are subject to disease. Although each species is… … Universalium
Physical Geography of Assam — is extremely interesting with its geologic origin, geomorphic characteristics, climate, rich biodiversity, etc. Assam, extending from 89 degree 42 minutes E longitude to 96 degree E longitude and 24 degree 8 minutes N latitudes to 28 degree 2… … Wikipedia
plant development — Introduction a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… … Universalium
Plant evolutionary developmental biology — For a more ecological discussion on the evolution of plant morphology, refer to Evolutionary history of plants Evolutionary developmental biology (evo devo) refers to the study of developmental programs and patterns from an evolutionary… … Wikipedia
Plant — For other uses, see Plant (disambiguation). Plants Temporal range: Early Cambrian to recent, but see text, 520–0 Ma … Wikipedia
Central Asian arts — Literary, performing, and visual arts of Afghanistan, Azerbaijan, Kazakhstan, Kyrgyzstan, Mongolia, Nepal, Tibet, Turkmenistan, Uzbekistan, and parts of China and Russia. The term usually denotes only those traditions not influenced by the… … Universalium
Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis … Wikipedia
Central reservation — This article is about divided roads. For other uses, see Central reservation (disambiguation). Typical motorway road layout (Irish and Israeli road markings) On divided roads, such as divided highways or freeways/motorways, the central… … Wikipedia
Plant sexuality — Close up of an Echinopsis spachiana flower, showing both carpels (only the styles and stigmas are visible) and stamens, making it a perfect flower. Plant sexuality covers the wide variety of sexual reproduction systems found across the plant… … Wikipedia
