Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2026ZoologyOrganisms and PopulationsActual

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Abingdon tortoise in Galapagos islands became extinct within a decade after goats were introduced. Reason R : Goats were more efficient at browsing than Abingdon tortoise. In the light of the above statements, choose the most appropriate answer from the options given below :

Options

  1. AA is not correct but R is correct
  2. BBoth A and R are correct and R is the correct explanation of A
  3. CBoth A and R are correct but R is not the correct explanation of A
  4. DA is correct but R is not correct

Correct answer

B. Both A and R are correct and R is the correct explanation of A

Step-by-step solution

According to the competitive exclusion principle, when two species compete for the same limited resources, the competitively superior species will eventually eliminate the other. The Abingdon tortoise in the Galapagos Islands became extinct within a decade after goats were introduced on the island. This occurred because the goats had a greater browsing efficiency compared to the tortoises, leading to a lack of food resources for the tortoises. Thus, Assertion A is correct, and Reason R is also correct and provides

Practice Organisms and Populations on Quantrex Academy →

More from Organisms and Populations

Match List-I with List-II . List-I List-II A. Both species are harmed I. Predation B. One species is harmed and the other is benefited II. Mutualism C. Both species are benefited I 2026Choose the correct statements regarding population interactions between two species. A. In both parasitism and commensalism, only one species benefits and the other species is harm 2026Which of the following equations depicts Verhulst-Pearl logistic population growth ? 2026Consider a population of 10 million cells. Given the per-capita birth rate of 0.002 (per unit time) and the per-capita death rate of 0.002 (per unit time), the expected number of c 2026Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : The logistic growth model of populations is considered more re 2026Which one of the following is an appropriate example of 'sexual deceit' ? 2026Who is known as the father of Ecology in India? 2025Given below are two statements : Statement I : Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it. Statement II : Fig wasp and fig tree exhibit mutual relations 2025 Full Organisms and Populations list All NEET PYQs