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1.

The real pre-darwinian abvocate of evolution wasA. LamarckB. BuffonC. EmpedoclesD. Cuvier

Answer» Correct Answer - A
Discussion
2.

Type of finch that uses a twig to prise out insects isA. warbler finchB. cactus finchC. wood pecker finchD. ground finch

Answer» Correct Answer - A
Discussion
3.

Darwin called discontinuous variations asA. invariableB. sportsC. discreteD. saltation

Answer» Correct Answer - B
Discussion
4.

Which of the following statements is correct about neo-lamarchism ? I. Some of the variations acquired by individuals can be transmitted to its offspring. II. Characters of organism are the result of interaction of genes and the environmental conditions. III. Theory emphasises on internal vital force. IV. Theory gives importance to the use and disuse of organs.A. I and IIB. III and IVC. I, II and IIID. III and IV

Answer» Correct Answer - a
Discussion
5.

Darwinism fails to explain the I. arrival of the fittest. II. Difference between somatic and geminal variations. III. Correct process of inheritance. IV survival of the fittestA. I and IVB. II and IIIC. I, II and IIID. All of these

Answer» Correct Answer - c
Discussion
6.

Assertion Darwin regarded discontinuous variations more important than continuous variations. Reason The survial of the fittest is a result of selection and proliferation of fittest organisms.A. Both Assertion and Reason are true, but Reason is the correct explanation of AssertionB. Both Assertion and Reason are true, but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is falseD. Assertion is false, but Reason is true

Answer» Correct Answer - d
The survival of the fittest is a results of selectionand proliferation of only those organisms, which were most suitably adapted to the environment and most successful in mating. Darwin regarded continuous variation to be more important because discontinuous variations being most harmful would not be selected again.
Discussion
7.

Theory of natural selection was given byA. LamarckB. DarwinC. WallaceD. Weismann

Answer» Correct Answer - B
Discussion
8.

The correct statements about the survival of the fittest are I. the term survival of the fittest was coined by Herbert Spencer. II. Natural selection tends to favour fittest organisms III. Fittest means more healthy, but sterile. IV survival means less healthy, but sterile.A. I and IIB. only IVC. II and IVD. All of these

Answer» Correct Answer - a
Discussion
9.

On an average, each femal of species X leaves 10 female offsprings in her lifetime. If all offsprings survive to reproduce, then how many female descendants will a single female leave after 10 generations?A. 100B. 100000C. 10000000D. 10000000000

Answer» Total no of descendants after 10 generations will be `10^(10)`
Discussion