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
A.
The true black melanic forms arise by a recurring random mutation.
Industrial melanism is a term used to describe the evolutionary process in which darker individuals come to predominate over lighter individuals since the industrial revolution as a result of natural selection. In 1848 a black form of the moth was recorded in Manchester and by 1895, 98% of the peppered moth population in Manchester was black. This black "melanic" form arose by a recurring random mutation, but its phenotypic appearance had a strong selective advantage in industrial areas.
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
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
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
