NEET UG BIOLOGY Multiple Choice Questions (MCQs)
NEET UG Biology Questions - Ecology and Environment
256. Which of the following is an example of mutualism?
- A) Predator-prey relationship
- B) Human parasitism
- C) Mycorrhizal fungi and plants
- D) Competition for resources
Answer: C) Mycorrhizal fungi and plants
257. Which of the following population attributes refers to the number of individuals in a population that are born over a certain time period?
- A) Birth rate
- B) Mortality rate
- C) Age distribution
- D) Population density
Answer: A) Birth rate
258. What is the term for the interaction where one organism benefits at the expense of another organism?
- A) Mutualism
- B) Parasitism
- C) Commensalism
- D) Predation
Answer: B) Parasitism
259. In which of the following situations do two organisms compete for the same resource?
- A) Mutualism
- B) Competition
- C) Predation
- D) Commensalism
Answer: B) Competition
260. The age structure of a population can be represented by which of the following?
- A) Population density
- B) Age distribution
- C) Growth rate
- D) Birth rate
Answer: B) Age distribution
261. Which of the following is the primary source of energy in an ecosystem?
- A) Decomposers
- B) Producers
- C) Herbivores
- D) Solar radiation
Answer: D) Solar radiation
262. Which of the following is NOT a component of an ecosystem?
- A) Abiotic factors
- B) Biotic factors
- C) Energy flow
- D) Genetic pool
Answer: D) Genetic pool
263. In a pyramid of energy, which of the following has the highest amount of energy?
- A) Producers
- B) Herbivores
- C) Carnivores
- D) Decomposers
Answer: A) Producers
264. Which of the following terms refers to the loss of energy as it flows through an ecosystem?
- A) Energy flow
- B) Primary productivity
- C) Trophic level
- D) Decomposition
Answer: A) Energy flow
265. Which of the following is an example of an endangered species listed in the Red Data Book?
- A) Lion
- B) Tiger
- C) Crow
- D) Domestic dog
Answer: B) Tiger
266. Which of the following factors directly contributes to the loss of biodiversity?
- A) Habitat destruction
- B) Sustainable development
- C) Pollution control
- D) Afforestation
Answer: A) Habitat destruction
267. Biodiversity hotspots are regions that are rich in biodiversity but are threatened by human activities. Which of the following is considered a biodiversity hotspot?
- A) Amazon Rainforest
- B) Sahara Desert
- C) Gobi Desert
- D) Great Barrier Reef
Answer: A) Amazon Rainforest
268. Which of the following conservation strategies is aimed at preserving both flora and fauna in a natural environment?
- A) Biosphere reserves
- B) Sacred Groves
- C) Zoos
- D) Botanical gardens
Answer: A) Biosphere reserves
269. Which of the following refers to an area of land protected by law to conserve wildlife and their habitats?
- A) National Park
- B) Zoo
- C) Botanical garden
- D) Crops reserve
Answer: A) National Park
270. The Red Data Book is a document that contains information about:
- A) Endangered species and their conservation status
- B) Sustainable farming practices
- C) Fossil records
- D) Greenhouse gas emissions
Answer: A) Endangered species and their conservation status
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