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Correct Answer: Newton's first lawGalileo showed that force causes acceleration. On the basis of the law of parabolicfall, Galileo reached the conclusion that bodies fall&...Read more
Correct Answer: R. H. WhittakerR.H. Whittaker proposed the five kingdoms of classification in 1969. This classification was based upon certain characters like mode of nutrition, thallus organization, cell structure, phylogenetic relationships and reproduction....Read more
Correct Answer: WaterThe xylem transports water and soluble mineral nutrients from the roots throughout the plant. It is also used to replace water lost during transpiration and photosynthesis. Xylem sap consists mainly of water and inorga...Read more