Biology 1-The father of Binomial nomenclature of organisms is Carolus Linnaeus 2-Cattle are capable of digesting cellulose present in the grass and/or fodder that they eat. This ability is attribute to the presence of cellulose digesting bacteria in the rumen 3-Brachymeiosis is associated with failure of meiosis-ll to occur after meiosis-l. 4-The unit structure … Read more
Biology – REPRODUCTION 1- Prevention of pregnancy in women is called contraception. 2- Single celled organisms (bacteria, amoeba and paramecium) reproduce by fission. 3- The structure of deoxy ribonucleic acid (DNA) is discovered by Watson & Crick. 4- Reproduction through budding occurs in yeast. Fragmentation occurs in spirogyra, lichens. 5- Mitosis was discovered … Read more
Biology – CO ORDINATION IN LIFE PROCESS 1-Amylase breaks starch into sugars (glucose). 2-Animals which are active during nights are called nocturnal animals. 3-Animals which are active during day are called diurnal animals. 4- Increasing ghrelin levels results in sensation of hunger. 5- pH beyond ‘7’ is alkaline and below ‘7’ is acidic. … Read more
Biology NATURAL RESOURCES and ENVIRONMENTAL EDUCATION 1- Centre for world solidarity is situated at secunderabad. 2-Variety of the living thing that populates the earth is called bio diversity. 3-World conservation strategy was proposed by IUCN in 1980. 4-Forests serve as lungs of the world. 5-FAO- Food and Agriculture Organization. 6-Ground water levels increase … Read more
Biology HEREDITY 1- Mendel (Father of genetics) experiments stands for Heredity. 2-Differences in characters with in closely related groups of organisms are called variations. Externally visible characters are called phenotype. 3-TT or YY, Tt or Yy are responsible for a dominant character. 4-There are nearly 180 vestigial (not useful) organs … Read more
Biology CO ORDINATION 1. Hypothalamus controls pituitary gland. 2.Brain is covered by three layers called meninges. 3.Afferent neurons are also called sensory neurons and efferent neurons are motor nerves. 4.Cerebellum maintains posture, equilibrium and muscle tone. 5. Interruptions in Myelin sheath (made up of Schwann cells) are called nodes of ranvier. 6.The functional and structural … Read more
Biology – TRANSPORTATION 1.Pulse rate in well trained athletes is 40-60. Pulse rate in new born babies is 100-150. 2. Stethoscope was discovered by Rene Laennac in 1816. 3.In amoeba, hydra materials are transported through Brownian movement. 4.Coronary vessels supply blood to the muscles of heart. 5.The larger artery is called aorta rises from upper … Read more
BIOLOGY – OUR ENVIRONMENT * Charles Elton (1927) showed tropical levels in the shape of ecological pyramid.Population in food chain in each tropical level shown in pyramid of number. * Sunlight is the main source of energy for all living organisms.Energy flow from one organism to another shown in food chain. * Sun light … Read more
Biology : – OUR ENVIRONMENT & NATURAL RESOURCES 1.Food chain ends with Carnivores 2- Every food chain always starts with Producers. 3-Expand BHC – Benzene hexachloride 4-Producers are occurred in a ecological pyramid is at the base. 5-Sunlight is vital role in absorption of solar energy . 6-The energy in the ecosystem flows … Read more
Biology CIRCULATORY SYSTEM 1.In B.P 120/80 the numerator (120)indicates systolic pressure. 2- The term cardiac refers to the organ of Heart . 3-The left ventricle receives oxygenated blood from leftatria atria. 4-The largest artery in the body of the man – Aorta 5-The blood flows through heart only once for completing one circulation … Read more