'Genetic species concept' was given by
Lamarck
Lotsy
Ernst Mayr
Linnaeus
(b)According to Lotsy $(1918)$ a species is a group of genetically identical individuals.
Potassium-argon dating can determine the age of the fossils
Using various resources such as your school library or the internet and discussions with your teacher, trace the evolutionary stages of any one animal say horse.
In $1938$, a coelacanth was found in
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