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Food Chains • Food Chain • A series of events in which one organism eats another and obtains energy. • What do • Food chains show the food chains transfer of energy in an show? ecosystem • What do the• The arrows represent arrows the transfer of energy. represent? All Food Chains and Webs start with the sun. The sun is the source of all the energy on the earth. What do food chains start with? • Almost all Food Chains start with the sun What type of organism is after the sun? • After the sun is an organism that can do photosynthesis. Like plants and phytoplankton. Describe photosynthesis . • Sunlight + Carbon Dioxide + Water = Energy – This process is called Photosynthesis • Sample food • Sun →milkweed → aphid chains: →ladybug →bird → mushroom • Sun → grass → zebra → lion → vulture • Sun → seeds → grasshopper→ mouse → hawk • THE ARROWS SHOW THE DIRECTION THAT THE ENERGY MOVES • Producers Flowers Tree Phytoplankton • An organism that can make its own food . They use carbon dioxide, water and sunlight to make energy, through a process called photosynthesis. • Producers are the source of all food in an ecosystem. Without producers there is no food chain. Sun Producer Plants need light for photosynthesis We call plants producers because they produce energy from the sun directly. • Decomposers • Organisms that break down wastes and dead organisms and return the raw materials to the environment. • At the end of the food chain • Two major groups of decomposers are: – Bacteria – Fungi Decomposer clips: 1, 2 • Consumers • An organism that obtains energy by feeding on other organisms. • Ex: Deer, Humans, Snakes, Bat, Cat, Hippopotamus, Cricket, Rabbit • Herbivores • Herb is latin for plant • Herbivores are consumers that eat only producers. (plant eaters) • Ex: Butterflies, deer, elephants, giraffes, mice. Sun Producer Primary Consumer • Omnivores • Omni is latin for all or everything. • Consumers that eat BOTH consumers and producers. (both meat eaters and plant eaters) • Ex. Humans, Bearded Dragons, Turtles, Bears. • Carnivores • Consumers that eat ONLY other consumers. • Carn is Latin for ( Meat -Eaters) flesh or meat. • Ex: T-rex, Tigers, Lions, Ladybugs, Spiders. Insectivores (type of carnivore) • Animal that eats insects • Ex: bats, shrews, aardvarks, anteaters, and others • Example clips: aardvark, shrew, anteater A pig eats fruit, eggs, corn, and earthworms. Omnivore A frog eats insects, earthworms, and spiders. eats grass, leaves, twigs, and shrub Herbivore A raccoon eats almost anything including berries, acorns, baby mice, baby birds & eggs, frogs, fish, and even some snakes. Omnivore Spiders eat insects. Carnivore (Insectivore) A giraffe lives in Africa and eats leaves from trees. A giraffe may eat 75 pounds of food each day. Herbivore A wolf eats deer, dogs, fish, mice, moose, birds, and other herbivores. Carnivore Rabbits eat grasses, weeds, leaves, shoots, twigs, and bark. Herbivore Lions eat other animals such as gazelles, antelopes, and zebras. Carnivore Sheep eat grass and hay. Herbivore Eagles eat fish, mammals, birds, and snakes. They love fish! Carnivore eats grass and hay Herbivore eats corn, twigs, shoots, acorns, fruit, berries, green plants Herbivore A grizzly bear usually eat things such as grasses, roots, berries, insects, fish, and small and large mammals. Omnivore Omnivore eat 150 pounds of plants each day Herbivore Scavenger • Scavengers are animals that eat dead animals • Their role in the ecosystem is to contribute to the decomposition of dead animal remains. • Scavengers open up animal bodies so they can eat them. • Example Clip: Vultures What’s Wrong ??? Bacteria Decomposer Plant Producer Butterfly Primary Consumer Herbivore Bird Bacteria Secondary Decomposer Consumer Omnivore Cactus Sun 1st Consumer Herbivore Bird Cactus 2rd Consumer Producer Carnivore BirdSnake Primary 3rd Consumer Consumer Carnivore Herbivore Sun Snake Decomposer Secondary Consumer Carnivore Sun Mushroom Caterpillar Producer Primary Consumer Herbivore Leaves Producer Frog Secondary Consumer Carnivore Mushroom Platypus Decomposer Tertiary Consumer Carnivore , , Sun Grass Producer , Dung Beetle Primary Consumer Herbivore , Dung Lion Beetle Zebra Decomposer Primary Secondary Secondary Tertiary Consumer Consumer Carnivore Herbivore ________________________ Sun Mustard Seed Producer Mustard Plant Primary Producer Consumer Bee Mushroom Herbivore Decomposer Mushroom Producer Apple Tree Producer / Apple Producer / Worm Herbivore Primary Consumer / Crow Carnivore Secondary Consumer Sun Zooplankton Fish Fish Phytoplankton Phytoplankton Primary Tertiary Secondary Secondary Producer Consumer Consumer Consumer Consumer Herbivore Omnivore Carnivore Omnivore Pelican Tertiary 4th Consumer Carnivore Sun Soil Producer Plant Producer Rabbit Fox Primary Primary Consumer Consumer Herbivore Carnivore Rabbit Fox Secondary Consumer Herbivore Carnivore Sun Bacteria Fish Phytoplankton Producer Primary Producer Consumer Herbivore Sea lion Secondary Consumer Carnivore Great Phytoplankton Bacteria White Decomposer Decomposer Shark Tertiary Consumer Carnivore Sun Algae Producer Shrimp Shrimp Primary Primary Consumer Consumer Herbivore Carnivore Arctic Cod Secondary Consumer Carnivore Seal Tertiary Consumer Carnivore Sun Tree Tree Omnivore Producer Earthworm Primary Consumer Herbivore Earthworm Decomposer Sloth Primary Consumer Herbivore Jaguar Secondary Consumer Carnivore Clownfish Primary Consumer Herbivore Sun Sea Grass Producer Sea Turtle Secondary Consumer Omnivore