Unit at a Glance
Unit 1. Ecology [C6]
Chapters 50, 51, 52, 53, 54, 55
2.A.1All living systems require constant input of free energy.
2.D.1 All biological systems from cells and organisms to populations, communities, and ecosystems are
affected by complex biotic and abiotic interactions involving exchange of matter and free energy
2.D.2 Homeostatic mechanisms reflect both common ancestry and divergence due to adaptation in different
2.D.3 Biological systems are affected by disruptions to their dynamic homeostasis.
2.E.3: Timing and coordination of behavior are regulated by various mechanisms and are important in
3.E.1. Individuals can act on information and communicate it to others.
4.A.5: Communities are composed of populations of organisms that interact in complex ways.
4.A.6: Interactions among living systems and with their environment result in the movement of matter and
4.B.3: Interactions between and within populations influence patterns of species distribution and abundance.
4.B.4: Distribution of local and global ecosystems
changes over time.
4.C.4: The diversity of species within an ecosystem may influence the stability of the ecosystem.
AP® Biology Laboratory 11: Animal Behavior [C8] [C4]
o Goal: To determine habitat preferences in the sow bug, to observe mating behavior in
Drosophila (wet lab)
AP® Biology Laboratory 12B & 12C: Aquatic Primary Productivity [C8] [C4]
o Goal: To measure and analyze the primary productivity of natural waters, to understand the
effect of light and nutrients on photosynthesis, to describe the relationship between dissolved
oxygen and the processes of photosynthesis and respiration as they affect primary
productivity in an ecosystem
Equations and Formulas
Rate and Growth
o Population Growth
o Exponential Growth
o Logistic Growth
o Primary Productivity Calculation
Traditional test using a free response essay question and numerous multiple choice questions.
Topics addressed in past AP exams
Chapter 50: Introduction to Ecology
Biotic vs. abiotic factors
Zonation in lakes vs. oceans
Survey of aquatic biomes
Survey of terrestrial biomes
Chapter 51: Behavioral Ecology
Fixed action patterns
Kinesis vs. taxis
Chapter 52 Population Ecology
Patterns of dispersion
Exponential growth vs. logistic growth
Density dependent vs. density independent
Chapter 53: Community Ecology
Competitive exclusion principle
Habitat vs. niche
Resource partitioning and character displacement
Parasitism, commensalism, mutualism
Chapter 54: Ecosystems
Gross and net productivity
Pyramid of net production
Pyramid of numbers
Cycles: carbon, water, nitrogen, phosphorus
Chapter 55: Conservation Biology
Four major threats to biodiversity