Producers, Consumers, and Decomposers Learning Targets: I can draw a food web and food chain and label producers and consumers. I can give an example of an herbivore, omnivore, carnivore and decomposer. I can discuss how energy flows through a food chain. I can discuss how energy flows through a trophic pyramid.
What do all living things need to survive? ENERGY
What is the source of energy for almost all living things? The Sun https:// www.goodfreephotos.com /vector-images/cartoon-sun-vector- art.png.php
1. Producers These are organisms that use sunlight to make food The process in which plants use the sun’s energy to make food is referred to as Photosynthesis Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct. Producers are also known as Autotrophs
Examples of producers Algae, Plants such as Grasses and Trees http://commons.wikimedia.org/wiki/File%3APlants_Conservatory.JPG
2. Consumers Organisms that rely on other organisms to obtain the energy that they need to sustain life. There are four types of consumers. Herbivores Carnivores Omnivores Decomposers
Herbivore Consume producers as their source of energy http://commons.wikimedia.org/wiki/File:Cow-bw.JPG
Carnivore Consume other heterotrophs/animals as their source of energy http://commons.wikimedia.org/wiki/File:Old_lion_of_the_Serengeti.JPG
Omnivore Consume both producers and animals as their source of energy http://commons.wikimedia.org/wiki/File:Bear_Alaska_(3).jpg
Scavengers Consume dead organic matter as a source of their energy http://commons.wikimedia.org/wiki/File:151_Turkey_Buzzard.jpg
Where do humans fit in a food chain? Provide students with the article: Between Pigs and Anchovies: Where Humans Rank in the Food Chain . (Lexile 1070) After reading the article students will respond to the following question in your Bio. Notebook: What type of consumer are you? What is the importance of having different types of consumers, rather than having only one type?
3. Decomposers Organisms that obtain energy by breaking down the remains of dead organisms. These organisms can be thought of as Nature’s Recyclers! http://commons.wikimedia.org/wiki/File:Bacteria_photomicrograph.jpg
Decomposers at Work Video Link: https:// youtu.be /Z6V0a_7N1Mw
Food Chains and Food Webs – The Flow of Energy Introductory video to food web: http://www.cleanvideosearch.com/media/action/yt/watch?v=0ZOvqYypOuo
Can you identify the producers, consumers, decomposers and scavengers? https:// www.flickr.com /photos/121935927@N06/13578843423
Learning Target Check In your science notebook answer the following: What would happen in an ecosystem if any one of the following groups, consumers or decomposers, were removed from it?