Which one does not faovur Lamarckian concept of inheritance of acquired characters?
Lack of pigment in cave dwellers
Absence of limbs in snakes
Presence of webbed toes in aquatic birds
Melanization of prepared moth in industrial areas
Frequency of a character increases when it is _________________.
Recessive
dominant
inheritable
adaptable
Which one is irrelevent to evolution of man?
Perfection of hand for tool making
Increased ability to coomunicte or develop community behaviour
Change of diet from hard nuts/roots to soft food
Loss of tail
Parallelism is ___________.
adaptive divergent
adaptive convergence of widely different species
adaptive divergent convergence of closely related groups
adaptive convergence of widley separated species
The first organisms were _______________.
Chemoautotrophs
Chemoheterotrophs
Autotrophs
Eukaryotes
Correct order is _______________.
palaeozoic → Archaeozoic → Coenozoic
Archaeozoic→ palaezoic→ protenozoic
Palaeozoic →Mesozoic → coenozoic
Mesozoic → Archaeozoic→ proterozoic
Two gegraphical regions separated by high mountains are ____________.
Oriental and Australian
Palaearctic and oriental
Nearctic and palaearctic
Neotropical and Ethiopian
Extremities, tail and ear relatively shorter in animals living in cooler regions as compared to those inhabiting warmer zones. This is ____________.
Bergman's rule
Jordan's rule
Gloger's rule
Allen's rule
What was absent in the atmosphere at the time of origin of life's
NH3
H2
O2
CH4
Basic principles of embryonic development were pronounced by _____________.
Von Bear
Weismann
Haeckel
Morgan