Page 2 - Assignment-Evolution

a. Ilha da Queimada Grande
b. Guatemala
c. Faroe Islands
d. Galapagos Islands
9. _____________ was considered as a missing link between reptiles and birds.
a. Archaeopteryx
b. Pteranodon
c. Avimimus
d. Caudipteryx
10. The oldest mineral discovered so far was __________, which dates back to 4.4
billion years.
a. Iron
b. Zircon
c. Cadmium
d. Silicon

B. Very Short Answer Questions (1 mark each)
1. Name one fish like reptile that evolved from land reptile about 200 million years ago?
2. For a long time, it was believed that life originated from decaying matter. What is
this theory known as? Name the scientist who experimentally disproved this theory.
3. If abiotic origin of life is in progress on a planet other than earth, what should be the
conditions there?
4. Name the person who proposed that population tends to increase geometrically
while food production supply arithmetically.
5. Name the scientist who had also come to similar conclusion as that of Darwin about
natural selection as a mechanism of evolution.

C. Short Answer Questions-II (2 marks each)
6. Explain Oparin-Haldane theory of chemical evolution of life.
7. Distinguish between convergent and divergent evolution giving one example of each.
8. What is adaptive radiation? Explain with an example.

D. Short Answer Questions-I (3 marks each)

9. (i) State the Hardy-Weinberg principle.
(ii) When there is a disturbance in the Hardy-Weinberg equilibrium,what would it
result in?
(iii) According to this principle, what is the sum total of all allelic frequencies?