Environment and Feeding Relationships Class 7 MCQs

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1. Which of the following is an example of a mutualistic relationship? a) Parasitism between a tapeworm and its host b) Predation between a lion and a gazelle c) Symbiosis between bees and flowers d) Competition between two species of birds for nesting sites
2. What is the term used to describe the relationship between two organisms where one benefits and the other is unaffected? a) Mutualism b) Commensalism c) Parasitism d) Predation
3. Which of the following organisms occupies the highest trophic level in a food chain? a) Producer b) Primary consumer c) Secondary consumer d) Tertiary consumer
4. What is the term used to describe the feeding relationship between organisms in which one organism hunts and kills another for food? a) Mutualism b) Commensalism c) Parasitism d) Predation
5. Which of the following is NOT a primary producer? a) Grass b) Algae c) Fish d) Trees
6. Which of the following organisms is a primary consumer? a) Grass b) Lion c) Hawk d) Rabbit
7. What is the primary role of decomposers in an ecosystem? a) To produce energy b) To break down dead organic matter c) To control the population of primary consumers d) To regulate the population of producers
8. Which of the following organisms is a carnivore? a) Cow b) Rabbit c) Eagle d) Grasshopper
9. Which of the following organisms occupies the lowest trophic level in a food chain? a) Primary producer b) Primary consumer c) Secondary consumer d) Tertiary consumer
10. What is the term used to describe the transfer of energy from one organism to another in an ecosystem? a) Trophic level b) Food chain c) Energy pyramid d) Biodiversity