Selected MCQ

Current Question
Which ecological pyramid is always upright?
  • A. Energy
  • B. Biomass
  • C. Number
  • D. Population
Correct Answer: A
Explanation:
Energy decreases at each trophic level.
Related Question 1
Which ecological interaction benefits both species?
  • A. Parasitism
  • B. Commensalism
  • C. Mutualism
  • D. Competition
Correct Answer: C
Explanation:
Mutualism benefits both organisms.
Related Question 2
Which process is always endothermic?
  • A. Condensation
  • B. Freezing
  • C. Sublimation
  • D. Deposition
Correct Answer: C
Explanation:
Sublimation requires energy to overcome intermolecular forces from solid to gas.