Download, print and study this document offline |
Page 1 CBSE TEST PAPER-11 CLASS - XII BIOLOGY (Evolution) 1. Which period is called “Age of Reptiles”. [1] 2. Name the species of human beings which is most closely related to modern man. [1] 3. What is “Founder’s effect”? [1] 4. A chimpanzee can hold objects by its hand & an elephant by trunk. Are these organs Analogous or homologous? [2] 5. Differentiate between convergent & divergent evolution? [2] 6 Bring out differences between De Vrie’s mutations Darwinian Variations? [2] 7. State in what ways Stanley miller simulated the condition of :- i) Primitive atmosphere on earth. ii) Energy source at the time of origin of life . iii) Formation of organic molecule of life. [3] 8. What is Biogeography? How Darwin’s finches provide biogeographical evidence in favour of evolution. [3] 9. How did louis pasteur successfully demolish the popular theory of spontaneous generation? [3] 1 0. Study the figures given below & answer the following question. i) Under the influence of which type of natural selection would graph (a) become like graph (b). ii ) What could be the likely reason of new variations arising in a population. iii) Who suggested natural selection as mechanism of evolution? [3]Read More