The concept of chemical evolution is based on
cyrstallization of chemicals
interaction of water, air and clay under intense heat
effect of solar radiation on chemicals
effect of solar radiation on chemicals
D.
effect of solar radiation on chemicals
The concept of chemical evolution is based on possible origin of life by combination of chemicals under suitable environmental conditions.
Industrial melanism as observed in peppered moth proves that
The true black melanic forms arise by a recurring random mutation.
The melanic form of the moth has no selective advantage over lighter form in industrial area
The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area
The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area
One of the important consequences of geographical isolation is
no change in the isolated fauna
preventing speciation
speciation through reproductive isolation
speciation through reproductive isolation
Among the human ancestors the brain size was more that 1000 CC in
Homo neander-thalensis
Homo erectus
Ramapithecus
Ramapithecus
About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and
phosphorus and sulphur
sulphur and magnesium
magnesium and sodium
magnesium and sodium
