Evolution is
Development of $DNA$ from nucleotides.
Development of organism through time.
Development of a cell from chemicals.
cloning
Definitions / Explanation : Analogous organs & Vestigial or rudimentary organs
$A$ : During evolution pouched mammals of Australia survived.
$R$ : Due to lack of competition from any other mammal due to continental drift
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.
Match the columns :
Column - $I$ | Column - $II$ |
$(1)$ Charles Darwin | $(a)$ Mutation theory |
$(2)$ Lamarck | $(b)$ Germ plasm theory |
$(3)$ Hugo de vries | $(c)$ Philosophie zoologique |
$(4)$ Ernst Haeckel | $(d)$ The origin of species |
$(5)$ August Weismann | $(e)$ Biogenetic law |
$(f)$ Eassy on population |