Part 4: Ecology and the Environment Extras  Study Guide

Chapter 17 Chap 16   Ecosystems, communities, and species interactions   Chap 18 Flashcards  Self Quiz
  1. is the study of interactions of living organisms with one another (community) and their physical environment (ecosystem).
     
  2. Ecosystems that occupy large areas are called .
     
     
  3. Energy in one direction through levels of an ecosystem, forming a complex food .
     
  4. Unlike energy, the physical components of ecosystems are reused in chemical . 
     
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