A.Harmful mutation
B.Catastrophic changes of environment
C.Both (a) & (b)
D.None of these
Related Mcqs:
- The term “Eco” implies ___________?
- A sudden heritable change is called:
- Concept of a sudden genetic change which breeds true in an organism is visualized:
- Which of the following is not a reason of unnatural extinction of species?
- Habitat loss and fragmentation, over exploitation, alien species invasion and co extinction are causes of ____________.
- New species evolve by sudden and distinct heritable changes called mutations and not by Natural Selection. The idea was put forward by:
- The processes associated with evolution of a species collectively mean:
- Determinate variations are controlled by strong genes or their recombination which are often so strong that the characters continue to develop beyond usefulness, to bearer and ultimately bring extinction of the species. The example of such are:
- All species on earth together with their environments collectively comprise __________?
- The crucial species that determine the ability of large number of other species is termed as ____________ species?
