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6.Evolution
hard
Complete fossil of whose among the following is found
A
Archaeopteryx
B
Birds
C
Reptiles
D
Horse
Solution
(a)The earliest known bird in fossil record is Archaeopteryx lithographica, meaning ancient wing. It dates back to late jurassic period about $140$ million years ago. It was discovered in a slate quarry at Langenaltheim, Bavaria (Germany) in $1861$ by Andreas Wagner. A second skeleton was discovered in $1877$ and third in $1956 $ from the same locality.
Standard 12
Biology
Similar Questions
medium
Match the columns :
| Column – $I$ | Column – $II$ |
| $(1)$ Mutation | $(a)$ Change in population allele frequencies due to chance alone. |
| $(2)$ Gene flow | $(b)$ Difference insurvival and reproduction |
| $(3)$ Natural selection | $(c)$ Immigration, emigration change allele frequencies. |
| $(4)$ Genetic drift | $(d)$ Source of new alleles. |
easy
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 |
medium
