APES MIDTERM EXAM QUESTIONS AND ANSWERS GRADED A+ 2026

APES MIDTERM EXAM QUESTIONS
AND ANSWERS GRADED A+ 2026




Which of the following best describes an ecosystem?
A) Populations interacting


B) All biotic factors interacting


C) Inter-species relationships


D) Intra-species relationships


E) All biotic and abiotic factors - ANS E


Choose the correct sequence for energy flow within an ecosystem
A) herbivores-->producers-->carnivores-->scavengers


B) producers-->herbivores-->carnivores-->scavengers


C) producers-->carnivores-->herbivores-->carnivores


D) scavengers-->producers-->herbivores-->carnivores

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, E) carnivores-->scavengers-->producers-->herbivores - ANS B


Approximately how much of the potential energy available from the sun's rays hitting the Earth
is not used in photosynthesis?
A) 1%


B) 10%


C) 50%


D) 90%


E) 99% - ANS E


During what stage of the hydrologic cycle is water released to the atmosphere from plants?
A) Evaporation


B) Transpiration


C) Precipitation


D) Infiltration


E) Condensation - ANS B


Which stage of the hydrologic cycle can be the most direct cause of algal blooms?
A) Evaporation

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