18155.Darwin judged the fitness of an individual by
Ability to defend itself
Strategy to obtain food
Number of offspring
Dominance over other individuals
18156.
Assertion: Coacervates are believed to be the precursors of life.
Reason: Coacervates were self-duplicating aggregates of proteins surrounded by lipid molecules.
Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
Assertion is true statement but Reason is false.
Both Assertion and Reason are false statements.
18157.What is meant by the term Darwin fitness?
The ability to survive and reproduce
High aggressiveness
Healthy appearance
Physical strength
18158.Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as
Migration
Divergent evolution
Adaptive radiation
Natural selection
18159.One of the important consequences of geographical isolation is:
Random creation of new species
No change in the isolated fauna
Preventing Speciation
Speciation through reproductive isolation
18160.Divergent evolution of a single group of organisms in a new environment is called ______.
Adaptive radiation
Uniformitarianism
Catastrophism
Convergent evolution
18161.De Vries gave his mutation theory on organic evolution while working on -
Oenothera lamarckiana
Drosophila melanogaster
Pisum sativum
Althea rosea
18162.Chemical reactions could have converted simple organic compounds into ______ for the origin of life.
Micromolecules
Nitrogen, oxygen and other gases
Cells
Macromolecules
18163.What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?
Increasing cranial capacity
Upright posture
Shortening of jaws
Binocular vision
18164.The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called
Natural selection
Convergent evolution
Non-random evolution
Adaptive radiation