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Unit 10 Part 2 Notes Energy Flow in an Ecosystem
Food Chain A simple model that shows how matter (food) and energy move through an ecosystem.
Food Web A diagram of the relationships between food chains in an ecosystem
Ecological Roles: Producers/Autotrophs Make their own food from sunlight (photosynthesis) or chemicals Base of a food chain or web Higher numbers than consumers
Ecological Roles: Producers Remember Photosynthesis! Autotrophs!
Ecological Roles: Consumers/Heterotrophs Acquire energy and food from other organisms Also called heterotrophs
Ecological Roles: Types of Consumers Herbivores: eat only plants Carnivores: eat only other animals Omnivores: eat both plants and animals
Ecological Roles: Decomposers Break down organic matter Release energy and nutrients back into the system Examples: Bacteria + fungi
Initial Energy Source Sunlight is the main energy source for life on Earth!
Feeding Relationships Energy flow pathway: Sun/chemicals Autotrophs (Producers) Heterotrophs (Consumers)
Trophic Levels Represents a feeding step as food and energy move through an ecosystem. Begins with producers 2 nd, 3 rd, 4 th and higher levels are made up of consumers
To have a stable ecosystem you must have: – Sunlight or chemical energy – Producers – Consumers – Decomposers Think: What important functions does each role have?
Energy Pyramid Less energy available as you go up Most energy converted to heat Fewer organisms at higher levels Only 10% of the energy is available to next level
Energy Flow 3-2 Biology Flora.
Energy Transfer in Ecosystem
Rangeland Ecology. Hierarchy of Ecological Levels Figure from: On-line biology class.
POWER FOR LIFE’S PROCESSES Energy Flow. Producers Sunlight is the primary source of energy source for life on earth. Plants, algae, and some bacteria.
Food Chains and Food Webs
1 Energy Flow Through in Ecosystems Lesson 1 Food Chains, Food Webs, Energy Pyramids.
Energy Flows Trophic Levels and Food Pyramids. Autotrophs A groups of organisms that can use the energy in sunlight to convert water and carbon dioxide.
Energy Flow in the Biosphere,
2.2-Flow of Energy in an Ecosystem SPI 1 Interpret a diagram that illustrates energy flow in an ecosystem.
Section 2.2. Vocabulary Autotroph - Any organism that collects energy from sunlight inorganic substances to produce food. Heterotroph – An organism that.
Energy Flow In An Ecosystem Unit 11 - Ecology. Producers The most important part of an ecosystem Without a constant energy source, living things cannot.
Energy Flows Through Ecosystems Sun: Makes all energy on Earth. Producers: Make their own food. Consumers: Get their food by eating other organisms. Decomposers:
Biology Chapter 2.2 Flow of Energy In an Ecosystem.
Objective: To trace flow of energy through living things
Chapter 3 Section 2: Energy Flow Identify the source of energy for life processes Trace the flow of energy through living systems Evaluate the efficiency.
Energy Flow: Autotrophs
Energy and Ecology Ecosystem Components Producers – Basis of an ecosystem’s energy – Autotrophs: perform photosynthesis to make sugars – Chemotrophs:
Energy Flow In Ecosystems Notes. Producers ▪Sunlight is the main source of energy for life on Earth ▪Organisms that capture energy from sunlight or chemicals.
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