admin 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
History Modern India 1-Wittet designed the Gateway of India in Mumbai. 2-Francis Church located at Cochin( 1510) is believed to be the first church built by the Europeans in India. 3- A building Constantia erected by General Martin (British) at Lucknow, is the best specimen of Palladian Style in India. 4-A master builder of Punjab, … 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
Biology RESPIRATION -Important Points -One Liners For Exams 1- The microscopic air sacs present in lungs are called alveoli 2- We will find vocal cards in larynx 3- Lungs are protected by two layers called pleura 4- No of lobes present in the left lung of man are two and in the right lung three … Read more
History -One Liners For Various Exams 1- War is to a Nation what maternity is to women was the principle of Fascists. 2- Robert mugabe was the first president of Zimbabwe. 3-.The first Five years plans in the world started in Russia by Stalin 4-Menshivik party was founded by Kerensky. 5-Excavation work of Indus valley … Read more
Chemistry -One Liners 1-Action of phosphoric acid on rock phosphate produces phosphoric acid 2-What is the name given to the electrons in the highest occupied energy level of an atom ? -Ans- valence electrons 3-What type of bonding does NaCl have ? -Ionic 4-Temperature and pressure in ammonia converter is 450 atm, 550°C 5-Fusion zone … Read more