Question

Read the following statements carefully and select the correct ones.
(i) Alfred Wallace, a naturalist who worker in Malay Archipelago had also come to similar conclusions as Darwin around the same time.
(ii) August Weismann by careful experimentation demonstrated that life comes only for pre-existing life.
(iii) The organs which have the same fundamental structure but are different in functions are called homologous organs.
(iv) Rate of appearance of new form is inversely proportional to life span of organism.

• A. (i) and (iii)
• B. (i) and (ii)
• C. (ii) and (iv)
• D. (iii) and (iv)

Answer 1

The correct option is A (i) and (iii)

Louis Pasteur by careful experimentation demonstrated that life comes only from pre-existing life. The rate of appearance of new forms is directly proportional to lifespan of the organism. Microbes that divide fast evolve fast. For same process to occur in fish or fowl will take millions of years.

So, the correct answer is '(i) and (iii)'.