ibps-rrb-oa 2023 · Question 127 of 209
Reading comprehension
The correct answer is: “By consuming weaker or sick individuals, preventing overpopulation and ensuring ecosystem balance.” Explanation: The passage states, "Sharks, as apex predators, help regulate the population of marine species by preying on weaker or sick individuals. This, in turn, prevents the overpopulation of certain species and ensures biodiversity within the ocean." This highlights the active role sharks play in maintaining biodiversity and regulating marine populations by targeting specific individuals. Incorrect options: (a) By migrating to different ocean regions, promoting biodiversity across ecosystems. This option is incorrect as the passage does not mention shark migrations as a primary means of promoting biodiversity. The emphasis is on their role as predators in regulating populations. (b) By avoiding interactions with other marine species, maintaining a passive role in the ecosystem. This option is incorrect because the passage emphasizes that sharks actively contribute to ecosystem balance by preying on specific individuals, indicating an active rather than a passive role. (c) By exclusively preying on dominant species, allowing weaker ones to flourish. This option is incorrect as it contradicts the information in the passage. Sharks are described as preying on weaker or sick individuals, not exclusively on dominant species. (d) By primarily feeding on plants, creating a diverse marine environment. This option is incorrect as sharks are carnivores, not herbivores. The passage does not mention sharks feeding on plants.
Source: IBPS RRB Clerk Mains Previous Year Paper 2023 (BankersAdda) · memory-based
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