Energy Flow in Ecosystems

Energy Flow in Ecosystems

Do Now Task

What do you think the arrows represent in this image?

How does Energy Flow in an Ecosystem?

• Explain the difference between food chains and food webs

• create an Energy Pyramid

• Make predictions about factors affecting plants and animal populations

• Analyze and evaluate changes in a food chain

Vocabulary

food chains

food webs

energy pyramid

producer

consumer

primary consumer

secondary consumer

tertiary consumer

Multiple Choice

What is a consumer? 

• Organism that creates their own food.
• Organism that eat other organisms for energy
• Organism that eat other dead organisms

Multiple Choice

What are plants called in a food chain?

• Producers
• Consumers
• Decomposers
• Scavengers

Multiple Choice

Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

Multiple Choice

What is a food chain?

• The flow of energy from one thing to another

• The way animals eat each other

• The way the sun makes everything

• How the plants grow

Multiple Choice

A connection of food chains with many food energy paths in an ecosystem is a ____________

• ecosystem
• food web
• environment

Multiple Choice

The direction of the flow of energy in a food web is represented by ___.

• Light bulbs
• Dotted Lines
• Arrows
• Bubbles

Multiple Choice

a system of food chains that shows the transfer of energy  is termed

• food web
• food chain
• prey
• predator

Multiple Choice

All energy transformations in an ecosystem begin with

• a scavenger
• the sun
• a decomposer
• a herbivore

Food Chains & Food Webs

Food Webs show all the Food Chains together within a specific ecosystem.

*Name a producer in this food web

*Which consumer feed on the Fruit Flies?

*What could be the impact if a the frog population died because of some illness?

Tropic Levels

We can organise the organisms into Trophic Levels.

The organism on the level above EATS the organism on the level below.