Complete fossil of whose among the following is found
Archaeopteryx
Birds
Reptiles
Horse
Select the incorrect statements
$I.$ Natural selection is essential for evolution
$II.$ Natural selection do not include variations
$III.$ Concept of natural selection was given by Hugo de Vries
$IV.$ Mutation is the sudden inheritable change
$V.$ Synthetic theory is also called Neo-Darwinism theory of evolution The correct combination is a
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 |
$A$ : During evolution pouched mammals of Australia survived.
$R$ : Due to lack of competition from any other mammal due to continental drift
Evolution is
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.