Related InterviewSolutions

• Rocky mountain revolution was succeeded by `:`A. azoic eraB. mesozoic eraC. coenozoic eraD. proterozoic era
• Which of the following structures is homologus to the wing of a bird?A. Wing of the MothB. Flipper of WhaleC. Hindlimb of RabbitD. Dorsal fin of a Shark
• The first mammals evolved 220 million years ago. The supercontinent Pangea began to break apart 200 million years ago. Therefore, fossils of the first mammals should be found `:`A. on most or all of the current continentsB. only on one or a few continentsC. only in AntarticaD. none of the above
• Wing of pigeon is homologous to the `:`A. ear of batB. tail of rabbitC. wing of butterflyD. foreleg of horse
• Which one of the following correctly describes the homologous structures?A. Organs with anatomical dissimilarities, but performing same functionB. Organs that have no function now, but had important functions in ancestorsC. Organs with anatomical similarties, but performing different functionsD. Organs appearing only in embryonic stage and disappearing later in the adult
• Which is the correct order of increasing geological time scale for a hypotehtical vertebrate evolution?A. Cenozoic, Mesozoic, Paleozoic, PrecambrianB. Cenoczoic, Palaeozoic, Mesozoic, CenozoicC. Precambrian, Palaeozoic ,Mesozoic, CenozoicD. Precambrian, Cenozoic, Palaeozoic, Mesozoic
• The ultimate source of genetic variation is `:`A. natural selectionB. mutationC. sexual recombinationD. genetic drift
• The natural selection that acts against change in form and keeps the population constant through the time is `:`A. DisruptiveB. None actingC. StabilizingD. Directional
• Occurrence of endemic species in South America and Australia is due to `:`A. Progressive evolutionB. continental separationC. absence of terrestrial route to these placesD. extinction of these species in other regions
• Example of homologous structure is `//` are `:`A. optic lobes of brainB. cerebrum of brainC. heart of vertebratesD. all of these