State Standard SB4B. Explain the flow of matter and energy through ecosystems by Arranging components of a food chain according to energy flow. Comparing the quantity of energy in the steps of an energy pyramid. Flow of Energy (2.2)

Energy in an Ecosystem  ____________ 2.2 Flow of Energy in an Ecosystem Principles of Ecology  Organisms that collect energy from sunlight or inorganic substances to produce food  Autotrophs are AKA ____________.  ____________  Organisms that get their energy requirements by consuming other organisms A lynx is a heterotroph. Chapter 2 Heterotrophs are AKA ____________.

 _______________ can synthesize food by using ____________ energy. Principles of Ecology 2.2 Flow of Energy in an Ecosystem Chapter 2 Types of Autotrophs _______________ can synthesize food by using inorganic ____________ substances.

Principles of Ecology 2.2 Flow of Energy in an Ecosystem Chapter 2 Types of Heterotrophs Organisms that only eat ____________ are called ____________. Ex: cow, rabbit, grasshopper ____________ prey on other heterotrophs. Ex: wolf, lion, lynx Organisms that eat both ____________ & ____________ are called ____________. Ex: bear, human, mockingbird

Principles of Ecology 2.2 Flow of Energy in an Ecosystem Chapter 2 Types of Heterotrophs Cont’d ____________ ________ fragments of dead matter in the ecosystem, ultimately returning nutrients to the soil, air, & water where they can be ____________. Ex: worms, millipedes, maggots, vultures ____________ break down dead organisms by ____________ digestive enzymes. Ex: bacteria, fungi

Principles of Ecology 2.2 Flow of Energy in an Ecosystem Chapter 2 Types of Heterotrophs Cont’d Whenever a heterotroph consumes a producer, it is known as a ____________ consumer. A ____________ consumer eats a primary consumer. A heterotroph is a called a ____________ consumer when it eats a secondary consumer.

Principles of Ecology Models of Energy Flow  Food ____________ and food ____________ model the energy flow through an ecosystem.  Each step in a food chain or food web is called a ____________ ____________. 2.2 Flow of Energy in an Ecosystem Chapter 2

Principles of Ecology Models of Energy Flow Cont’d  A ____________ ____________ is a ____________ model that shows ____________ ____________ of energy flow in an ecosystem. 2.2 Flow of Energy in an Ecosystem Chapter 2

Principles of Ecology Models of Energy Flow Cont’d  A ____________ ____________ is a ____________ model representing the many _______________ food chains and pathways in which energy flows through a group of organisms. 2.2 Flow of Energy in an Ecosystem Chapter 2

Principles of Ecology Ecological Pyramids  Diagrams that can show the relative amounts of ____________, ____________ (amount of living matter), or ____________ _____ ____________ at each trophic level in an ecosystem 2.2 Flow of Energy in an Ecosystem Chapter 2