Q10 of 42 Page 1

State Gause’s ‘Competitive Exclusion Principle’. How have the recent studies modified this principle?

Gause’s Competitive Exclusion Principle states that two closely related species competing for the same resources cannot exist indefinitely and the competitively inferior one will be eventually eliminated.


According to recent studies, species facing competition might evolve mechanisms that promote co-existence rather than exclusion i.e. if two species compete for the same resource they could avoid competition by choosing different times for feeding different foraging pattern.


More from this chapter

All 42 →
6

Write the genotypes of the parents of a child suffering from thalassemia. State the cause of this disease.

 8

List any four common approaches for treatment of cancer.

 19

Explain the phenomenon of evolution by natural selection as supported by the variations observed in white winged and dark winged moth populations in England between 1850 – 1920.

 20

Explain ‘mutation breeding’ as a method of developing disease resistant crop plants. Give an example of a pulse crop where this technique has helped.