Branch of zoology dealing with similarities and differences between individuals related by descent is
Genetics
Eugenics
Evolution
Ecology
It's Obvious
The proponent of the theory of spontaneous generation was
Fossil $X$ is older than fossil $Y$ if
The branch which is associated with diagnosis, prevention and cure of mental disorders is
Stings of honey bee and the stings of scorpion are
$I.$ analogous organs
$II.$ heterologous organs
$III.$ homologous organs
$IV.$ vestigial organs
The correct combination is
The origin of seeds in the land plants was achieved about $345 \;million$ years ago, in lineages recognised as ancestral to all more advanced vascular plants in
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