, BIOL 355 ECOLOGY EXAM 1 QUESTIONS
AND ANSWERS (DR. LARSON) | SPRING
2026 VERSION A ANSWER KEY | WITH
COMPLETE SOLUTIONS.- BINGHAMTON
UNIVERSITY.
SECTION 1: BIOLOGICAL HIERARCHY &
EMERGENT PROPERTIES
Question 1
Our course is modeled after the Biological Hierarchy. Choose the correct
order, from the largest to the smallest level, of the Biological Hierarchy:
A) organism → population → ecosystem → community → biosphere
B) biosphere → ecosystem → community → population → organism
C) biosphere → community → ecosystem → organism → population
D) organism → ecosystem → population → community → biosphere
Answer: B. biosphere → ecosystem → community → population →
organism
Rationale: The biological hierarchy organizes life from the largest (most
inclusive) to the smallest (least inclusive) scale: Biosphere → Ecosystem →
Community → Population → Organism . This framework helps ecologists
study interactions at different levels of organization.