NEET UG · Biology
Ecology and environment
13 practice questions, each with the answer and an explanation.
Practise Ecology and environment now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 13 questions
- According to Gause's Competitive Exclusion Principle, what occurs when two closely related species compete for the exact same limiting resource?
- What term describes the ecological interaction where one organism benefits while the other is neither harmed nor benefited (e.g., an orchid growing as an epiphyte on a mango tree)?
- Which of the following ecological pyramids is ALWAYS upright in any healthy, functional ecosystem and can never be inverted?
- In population ecology, what mathematical equation represents logistic population growth where represents carrying capacity?
- Which layer of the atmosphere contains the protective 'Good Ozone' that absorbs harmful incoming solar ultraviolet (UV-B) radiation?
- What is the primary cause of 'Eutrophication' in freshwater lakes?
- Which international environmental agreement protocol was adopted in 1987 to halt the production of chlorofluorocarbons (CFCs) and protect the ozone layer?
- In an inverted pyramid of biomass commonly observed in marine aquatic ecosystems, which trophic level exhibits the smallest standing crop biomass?
- What type of ecological succession initiates on newly formed bare rock surfaces or freshly cooled volcanic lava flows where no biological soil previously existed?
- Which of the following is considered an 'Ex-situ' (off-site) biodiversity conservation strategy?
- What phenomenon occurs when toxic non-biodegradable chemicals such as DDT achieve progressively higher concentrations in tertiary predatory birds (like ospreys)?
- Which forest biome is characterized by multi-layered canopies, absence of seasonal leaf-fall, and harbor over 50% of the world's terrestrial species?
- A population of fish is sampled: fish are marked and released, and a later sample of fish contains marked ones. The population then grows with birth rate and death rate p…
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