Match List $- I$ with List $- II.$
List $- I$ | List $- II$ |
$(a)$ Adaptive radiation | $(i)$ Selection of resistant varieties due to excessive use of herbicides and pesticides |
$(b)$ Convergent evolution | $(ii)$ Bones of forelimbs in Man and Whale |
$(c)$ Divergent evolution | $(iii)$ Wings of Butterfly and Bird |
$(d)$ Evolution by anthropogenic action | $(iv)$ Darwin Finches |
Choose the correct answer from the options given below.
$(a)- (b)- (c)- (d)$
$(iv)- (ii) -(ii)- (i)$
$(iii)- (ii)- (i) -(iv)$
$(ii)- (i)- (iv) -(iii)$
$(i) -(iv)- (iii)- (ii)$
Match the following.
Column $- I$ | Column $- II$ |
$(A)$ Lamark | $(p)$ Finch bird |
$(B)$ De Vries | $(q)$ Evening primerose |
$(C)$ Darwin | $(r)$ Giraffes |
$(s)$ Melanic moths |
Match the columns :
Column - $I$ | Column - $II$ |
$(1)$ Human embryos have gill | $(a)$ Chemical evolution |
$(2)$ Oparin and Haldane | $(b)$ Stimulation experiment |
$(3)$ Miller and uray | $(c)$ Wings of bird and butterfly |
$(4)$ Analogous organ | $(d)$ Outogeny repeats phylogeny |
How do you express the meaning of words like race, breed, cultivars or variety ?
Assertion : Natural selection is the outcome of difference in survival and reproduction among individuals that show variation in one or more traits.
Reason : Adaptive forms of a given trait tend to become more common; less adaptive ones become less common or disappear.
Given below are four statements $(A-D)$ each with one or two blanks. Select the option which correctly fills up the blanks in two statements. Statements :
$(A)$ Wings of butterfly and birds look alike andare the results of ___$(i)$___ evolution.
$(B)$ Miller showed that $CH_4 , H_2 , NH_3$ and ___$(i)$___ when exposed to electric discharge in a flaskresulted in formation of ___$(ii)$___ .
$(C)$ Vermiform appendix is a ___$(i)$___ organ and an ___$(ii)$___ evidence of evolution.
$(D)$ According to Darwin evolution took placedue to ___$(i)$___ and ___$(ii)$___ of the fittest.