The concept of chemical evolution is based on
The concept of chemical evolution is based on
Options
(a) interaction of water, air and clay under intense heat (b) effect of solar radiation on chemicals (c) possible origin of life by combination […]
Biology
Industrial melanism as observed in peppered moth proves that
Industrial melanism as observed in peppered moth proves that
Options
(a) the melanic form of the moth has no selective advantage over lighter form in industrial area (b) the lighter-form moth has no […]
Which one of the following statement is correct about evolution
Which one of the following statement is correct?
Options
(a) There is no evidence of the existence of gills during embryogenesis of mammals (b) All plant and animal cells are totipotent (c) Ontogeny […]
Which one of the following options gives one correct example each
Which one of the following options gives one correct example each of convergent evolution and divergent evolution?
Options
(a) Eyes of octopus and mammals – Bones of forelimbs of vertebrates (b) Thorns of […]
The extinct human who lived 1,00,000 to 40,000 years ago in Europe
The extinct human who lived 1,00,000 to 40,000 years ago in Europe, Asia and parts of Africa, With short stature, heavy eyebrows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait […]
The eye of octopus and eye of cat show different patterns of structure
The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of
Options
(a) Homologous organs that have evolved due to divergent […]
Random unidirectional change in allele frequencies that occurs by chance
Random unidirectional change in allele frequencies that occurs by chance in all populations and especially in small populations is known as
Options
(a) Mutation (b) Migration (c) Natural selection (d) Genetic drift
Correct […]
The finch species of Galapagos Islands are grouped according to their food
The finch species of Galapagos Islands are grouped according to their food sources. Which of the following is not a finch food?
Options
(a) Seeds (b) Carrion (c) Insects (d) Tree buds
Correct […]
Which one of the following is a matching pair of a body feature and the animal
Which one of the following is a matching pair of a body feature and the animal possessing it?
Options
(a) Ventral central nervous system – Leech (b) Pharyngeal gill slits absent in embryo- […]
Which one of the following scientists name is correctly matched with the theory
Which one of the following scientists name is correctly matched with the theory put forth by him?
Options
(a) Weismann – Theory of continuity of Germplasm (b) Pasteur – Inheritance of acquired characters […]