What are the organs similar in basic structure/shape, modified to perform different functions called?
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Some of the energy derived from the food we eat is stored in the form of
The number of free electrons in the outermost shell of carbon atoms in diamand is
Which one of the following is not a borderline element?
___ has naked seeds.
Sadir is a name of which ancient dance style of India?
Why does ice covered in sawdust not melt quickly?
Orbital period of Halley's comet is ___ years.