ch. 4.1 & 4.2: energy, producers & consumers/energy flow...
TRANSCRIPT
Ch. 4.1 & 4.2: Energy, Producers & Consumers/Energy Flow in Ecosystems
Essential Questions:• What are primary producers?• How do consumers obtain energy &
nutrients?• How does energy flow through
ecosystems?• How do ecological pyramids help analyze
energy flow through trophic levels?
• Primary Producers• Autotrophs
– Energy from the sun• Photosynthesis
– Life without light• chemosynthesis
• Consumers• Heterotrophs
– Types of consumers– Beyond consumer categories
• Food Chains & Food Webs– Food chains• Phytoplankton
– Food webs• Food chains within food webs• Decomposers & detritivores in food webs
– Food webs & disturbances• Ecological pyramids– Pyramids of energy
– Pyramids of biomass & numbers