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. He further demonstrated that if a transverse slit was caused in the coleoptile on the dark side and a piece of mica inserted into the slit, no phototropic response took place. On the other hand there was a phototropic response if the slit and the piece of mica were on the illu..

12 took the history test in a class of 30 girls. What fraction of the girls took the test? Write the fraction in its simplest form. => 2 5 or 5 2 or 3 5 or None of the above..

A fire accident took place in an office. The areas captured by the fire are shown as shaded portion in the figure. What percent of area is safe? => 80% or 75% or 20% or 60%..

The children of a school go on a picnic to a place 258 km away from their school by bus. On their way back, the bus traveled faster by 43 km/h, and they reached school an hour earlier than they took to get to the picnic spot. What was the speed of the bus while going to the picn..

This is because there is no starch in that area. The area was deprived of light which is needed for photosynthesis. Hence, no photosynthesis took place in that are..

Evolution of life has been taking place for about 3.8 billion years of time. When we view macroevolution - the large-scale evolutionary history of lif..

Evolution Should not be Equated with Progress - All of the changes, diversifications, and extinctions that happened over the course of life's history are the patterns of overall evolution. Evolution of life has been taking place for about 3.8 billion years of time. When we view ..

. They are the true giants of humanity; the others are insignificant. It is said that a famous boxer once refused to tie his seat belt aboard a plane. " Superman doesn't need a belt," he resisted. Tying his belt for him, the airhostess replied: " Superman doesn't need a plane either" . The truly gr..

During the formation of the Earth, cooling of gaseous mixtures took place and molten earth condensed to form different earth zones or layers. Each layer that formed on top of the other had a definite chemical composition and thus a distinct distribution of elements within ..

As soon as rockets could break away from the earth's gravity, moon became the next goal. Russians took the lead landing their spacecraft LUNA-3 which photographed the far side of moon in 1959. Meanwhile, the United States launched 11 unmanned moon missions without a single one completing ..