colloidal form which are bounded by a membrane and grows by absorbing molecules from the environment. Oparin believed that life developed from coacervates. Cytolysis - Destruction of cells. Cursorial – A cursorial organism is one that is adapted specifically to run.
Cursorial organisms are typically adapted to long- distance running at high speeds, rather than animals with high acceleration over short distances; thus, a cheetah is considered cursorial, while a leopard is not. Denaturing – Denaturing means separation or splitting of the double helix into single stands by breaking hydrogen bonds between the two strands. Dendritic cells - Professional antigen presenting cells that have long membrane processes. Diapedesis - The movement of blood cells (leucocytes) out of the circulatory system and towards the site of tissue damage or infection accompanying inflammation.
Dinosaurs - a term coined by Sir Richard Owen for giant extinct reptiles. Group of animals that XII Std Biology-Zoology Glossary XII Std Biology-Zoology Glossary Glossary have bird-like and lizard-like facial appearance (Mesozoic). Distribution – The occurrence of different organisms in a given area and the way they are distributed in their space, specific time and utilization of their resources. DO – Dissolved Oxygen is the amount of gaseous oxygen (O ) dissolved in the water.
Ecotourism - Travel undertaken to witness sites or regions of unique natural ecological quality the provision of services to facilitate such travel. El Nino– Unusual warming of surface waters in the eastern tropical Pacific Ocean. Emphysema– A serious medical condition that occurs when the lungs become larger and do not work properly, causing difficulty in breathing. Endemism- The phenomenon in which the organisms are exclusively restricted to a given area.
Endometriosis – An abnormal condition in which endometrial tissue that normally lines the uterus grows outside . Eohippus – Ancestor of modern horse. Euchromatin – Euchromatin is a tightly packed form of chromatin that is enriched in genes, and is often under active transcription. Eutrophication - Excessive richness of nutrients in a lake or other water bodies frequently due to run of fertilizers