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6.Evolution
easy
Definitions / Explanation : Recapitulation theory or Biogenetic law & Palaeontology
Option A
Option B
Option C
Option D
Solution
This theory says that "Ontogeny recapitulates evolutionary history.
This means an organism repeats its ancestral history during its development.
It is the study of past life based on the fossil records. It furnishes the most direct and most reliable evidence for evolution.
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 – $II$ |
$(1)$ Human embryos have gill | $(a)$ Chemical evolution |
$(2)$ Oparin and Haldane | $(b)$ Stimulation experiment |
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$(4)$ Analogous organ | $(d)$ Outogeny repeats phylogeny |
easy