Biology Quarter 1: Weeks 5-6
September 21-October 2, 2015
(2,4,5; 95 min.)
Lab Practical
Introduction to Food Webs
* Celebration of Understanding!!!
How do organisms interact with each
other and the environment to obtain
energy? Where does the energy go?
Wednesday-Thursday Food Webs and Ecological Pyramids
(2,4,5: 95 min.)
* How does the structure of plants allow
them stay alive and, at the same time,
form the basis for food webs? Where
does the energy go?
(2,4,5; 95 min.)
C. Gay 9/19/15
1. Food Web Story
DUE: W-Th 9/23-24
2. Biology Ch 3.1: Notes
DUE: W-Th 9/23-24
1. Biology Ch 3.2: Notes
DUE: M-T 9/28-29
No Class – Homecoming Activities
10% Rule and Bioaccumulation
* How does matter cycle as organisms
interact to obtain energy? What
happens to their waste?
Wednesday-Thursday Limiting Nutrients: Elodea & Snail
(2,4,5: 95 min.)
* What is a limiting nutrient? Is the Earth
a closed system?
(2,4,5; 40 min.)
Limiting Nutrients: Elodea & Snail
* What is a limiting nutrient? Is the Earth
a closed system?
1. Biology Ch 3.3: Notes
DUE: W-Th 9/30-10/1
2. Check for Understanding
DUE: W-Th 10/1-2
1. Biology Ch. 18.2-3 Notes
DUE: F 9/18
1. Check for Understanding
DUE: M-T 9/21-22
Steamboat Springs High School
Topical Understanding
To be alive, organisms must take in energy to do many kinds of work – including maintenance of their ordered state, and
must rid themselves of the waste produced from this work.
Organisms interact with each other and the environment in many complex ways to obtain the energy they need to survive.
Energy flows from the sun, through plants, animals and decomposers, and is lost as heat. Ecosystems require daily input of
energy, but matter and nutrients are recycled between organisms and abiotic reservoirs.
Essential Questions
What interrelationships form in ecosystems as each organism solves the problem of energy acquisition?
The 10% Rule: What are the implications for world hunger?
What would happen to an ecosystem if nutrients did not cycle?
What would happen to an ecosystem if there were no limiting factors?
Areas of Focus
= Energy Flow Through Ecosystems
= Cycles of Matter
Knowledge and Skills
Knowledge and Skills
= Energy Flow
 Producers
o Autotrophs
o Photosynthesis vs. Chemosynthesis
 Consumers
o Heterotrophs
o Herbivores
o Carnivores
o Omnivores
o Detritivores
o Decomposers
o Primary consumers
o Secondary consumers
o Tertiary and quaternary consumers
 Feeding Relationships
o Food Chains and Food Webs
o Trophic Levels
 Ecological Pyramids
o Pyramid of Energy
 Ten Percent Rule
o Pyramid of Biomass
o Pyramid of Numbers
= Cycles of Matter
 Recycling in the Biosphere
o Biogeochemical cycles
 Water cycle
o Evaporation and transpiration
 Nutrient Cycles
o Carbon cycle
o Nitrogen cycle
o Phosphorus cycle
 Nutrient Limitation
o Primary productivity
o Limiting nutrient
C. Gay 9/19/15
Biology Textbook Reference
Chapter 3.1-3 pp. 74-81
Mrs. Gay’s Website
Remember that all handouts and resources can be accessed here!
Steamboat Springs High School