| Topics | Questions | Media Resources |
15.1 Community, Habitat, and Niche |
List 10 items that are a
part of your niche.
Answer
What is the difference between habitat and niche?
Answer
| Quick Overview Key Points |
15.2 Kinds of Organism Interactions | -
What do parasites, commensal organisms,
and mutualistic organisms have in common? How are they different?
Answer
-
Describe two situations in which competition may involve combat and
two that do not involve combat.
Answer | Quick Overview Key Points Animations and Review Interactive Concept Maps Experience This! |
15.3 The Cycling of Materials in Ecosystems |
Trace the flow of carbon
atoms through a community that contains plants, herbivores, decomposers, and
parasites.
Answer
Describe four different roles played by
bacteria in the nitrogen cycle.
Answer
Describe the flow of water through the
hydrologic cycle.
Answer
List three ways the carbon and nitrogen
cycles are similar and three ways they differ.
Answer
Describe the major
processes that make phosphorus available to plants.
Answer
| Quick Overview Key Points Animations and Review Interactive Concept Map Case Study |
15.4 The Impact of Human Actions on Communities | -
Why do DDT and PCBs increase in
concentration in the bodies of organisms at higher trophic levels ?
Answer
-
How have past practices of predator
control and habitat destruction negatively altered biological communities?
Answer
-
List 3 introduced species that have become
pests and explain why they became pests.
Answer | Quick Overview Key Points Animations and Review Case Study Food for Thought |
