Reproductive isolation does not permit the interbreeding among the individuals of ……….species.
a) same
b) different
c) both a and b
d) none of these
Which of the following are evidences for the new species to evolve by descent with modification?
a) evidences from comparative anatomy and fossil records
b) evidences from the vestigial organs and biochemistry
c) evidences from molecular biology and embryology
d) all of these
Comparative anatomy provide many evidences of evolution; in such study we are concerned with ……….
a) homologous structure
b) analogous structure
c) internal structure
d) external structure
Explanation: structures that have the same general arrangement of parts and similar mode of development but different functions
Which of the following is/are homologous structure/s?
a) human hands and a bat’s wing
b) cat’s paw and horse front legs
c) front flippers of whales and human’s hands
d) all of these
Which of the following is/are the same in the homologous structures of human hand, bat’s wing, cat’s paw and horse front leg?
a) number of bones
b) muscles
c) nerves and blood vessels
d) all of these
Explanation: all these have similar mode of developments
Evidences from comparative anatomy of homologous structure among
different organisms conclude that these organisms have…….from ancestral type to
constitute new species.
a) converged
b) diverged
c) created
d) evolved
