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SUMMATIVE ASSESSMENT (SA – 2) Model Papers 2020 (With Blue Print)
Prepared by Anju Sakleshpura
1st to 6th Std Summative Assessment (SA 2) All Subjects Model Papers, CLICK HERE
4th to 6th Std Summative Assessment (SA – 2) ALL subjects Model Papers (Prepared by Saligramajam), CLICK HERE
DO YOU KNOW?
The continous and gradual change from simple life forms to complex organisms is called Organic evolution, The earliest organisms to emerge on earth were Protozoa, Lamarck’s theory of evolution is called the theory of use and disuse, The first scientist o give the scientific theory on organic evolution was Charles Drawin, The famous book written by Charles Darwin is Origin of Species, The book origin of species written by Darwin was published in 1859, The scientist who propounded the theory of organic evolution by natural selection was Charles Darwin,
The one of the basis of darwins theory was Struggle for existence, The feature of Darwin that the organisms which have favourable variations will succeed and survive is called Survival of fittest, The remains of an ancient organism preserved in earth’s crust are known as Fossils, The branch of science that deals with the study of fosils is called Paleontology, The first bird known to live during the late jurrasic period was Archaeopteryx, The organs of different group of organisms having fundamental similarity of structure and postion are called Homologus organs, The organs of different groups having different structure and performing similar functions is called Analogus organs,
The age of earth is estimated to be approximately 5 billion years, The age of Invertebrates is called Proterozoic era, The age of amphibians and fishes is called Paleozoic era, The age of reptiles is called Mesozoic era, The mammals belong to the age Coenozoic era, The seed bearing plants emerged on the earth during the Mesozoic era, The flowering plants emerged on the earth during the Coenozoic era, Archaeopteryx is a link between reptiles and birds, Darwin’s theory of evolution is best described as Evolution by Natural selection.
Dinosaurs are ancient reptiles, The competition amongst the organisms for resources is called Struggle for existence, The Lamarckian theory of evolution was refuted by August Weismann, The geographical era in which the first life emerged on earth was Proterozoic era, The algae, fungi, protista emerged on the earth during the Mesozoic era, The region where we find the remains of the ancient elephant that lived 1000 years ago Siberia, The life emerged on earth in the oceans
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