Page 3 - Assignment-Evolution
P. 3
10. Classify the following as examples of homology and analogy–
(i) Hearts of fish and crocodile
(ii) Wings of butterfly and birds
(iii) Eyes of Octopus and Mammals
(iv) Tubers of Potato and sweet potato
(v) Thorns of Bougainvillea and spines of Opuntia
(vi) Thorn of Bougainvillea and tendrils of cucurbits.
11. Stanley Miller and Harold Urey performed an experiment by recreating in the
laboratory the probable conditions of the atmosphere of the primitive earth.
(i)What was the aim of the experiment?
(ii) In what forms was the energy supplied for chemical reactions to occur?
(iii) For how long was the experiment run continuously? Name two products
formed.
12. ‘Industrial Melanism’ in peppered moth is an excellent example of ‘Natural
selection’. Justify the statement.
13. Fill up the blanks left in the table showing Era, period and organism.
14. (i) In which part of the world, Neanderthal man lived?
(ii) What was his brain’s capacity?
(iii) Mention the advancement which Neanderthal man showed over Homo erectus.
15. Figures given below are of Darwin’s finches?
