Author: neetexam

Q. In the development history of mammalian heart, it is observed that it passes through a two chambered fish like heart , three chambered fish like heart and finally four…

Q. Darwin's finches are an excellent example of : (a) Brood parasitism (b) Connecting links (c) Adaptive radiation (d) Seasonal migration Solution : Correct option : C Divergent evolution also…

Q. Dinosaurs became extinct in which the following periods ? (a) Permian (b) Jurassic (c) Cretaceous (d) Triassic Solution : Correct option : C Dinosaurs went extinct about 65 million…

Q. Which one of the following statement is correct ? (a) Stem cells are specialized cells (b) There is no evidence of the existence of gills during embryogenesis of mammals…