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Food Chains, Food Webs, and Ecological Pyramids

Published by Lisa Giorgi Modified over 5 years ago

Presentation on theme: "Food Chains, Food Webs, and Ecological Pyramids"— Presentation transcript:

Ecosystem Structure.

Flow of Energy Through Ecosystems B-3.6. Energy Through Ecosystems  The flow of energy through ecosystems can be described and illustrated in food chains,

Warm-Up: Wednesday: November 6 th When you enter the classroom, pick up a new warm-up sheet from the front chair and a lap top from the cart and login.

An energy pyramid shows the distribution of energy among trophic levels.

MRS. SANDY GÓMEZ Energy Flow in Ecosystems. Are the feeding relationships between organisms. A Food Chain is:  transfer of food energy from its source.

2.1 Energy Flow in Ecosystems Biomass is the total mass of all living things in a given area. (measured in g/m 2 or kg/m 2) Organisms interact with the.

2.1 Energy Flow in Ecosystems

13.6 Pyramid Models Pyramids model the distribution of energy and matter in an ecosystem. 1 st Trophic Level 2 nd Trophic Level 3 rd Trophic Level 4 th.

Food Chains, Webs & Pyramids! 1) The Passage of Energy The Sun The source of energy for all life on the planet Producers (Autotroph) Use the sun’s energy.

13.6 Pyramid Models KEY CONCEPT Pyramids model the distribution of energy and matter in an ecosystem.

Part 2: Energy Flow and Nutrient cycles Support life in Ecosystem

Ecosystem Components Producers – Basis of an ecosystem’s energy – Autotrophs: perform photosynthesis to make sugars – Chemotrophs: Bacteria which use.

Food Chains, Food Webs, and Ecological Pyramids. A food chain is the simplest path that energy takes through an ecosystem. Energy enters from the sun.