2 Food Chains Food Chain What do food chains show? What do the arrows represent?A series of events in which one organism eats another and obtains energy.Food chains show the transfer of energy in an ecosystemThe arrows represent the transfer of energy.
4 All Food Chains and Webs start with the sun All Food Chains and Webs start with the sun. The sun is the source of all the energy on the earth.
5 Almost all Food Chains start with the sun What do food chains start with?What type of organism is after the sun?Describe photosynthesis.Almost all Food Chains start with the sunAfter the sun is an organism that can do photosynthesis. Like plants and phytoplankton.Sunlight + Carbon Dioxide + Water = EnergyThis process is called Photosynthesis
6 Sample food chains:Sun →milkweed → aphid →ladybug →bird → mushroomSun → grass → zebra → lion → vultureSun → seeds → grasshopper→ mouse → hawkTHE ARROWS SHOW THE DIRECTION THAT THE ENERGY MOVES
7 ProducersAn 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.FlowersTreePhytoplanktonSunProducer
8 Plants need light for photosynthesis We call plants producers because they produce energy from the sun directly.
9 At the end of the food chain Two major groups of decomposers are: Organisms that break down wastes and dead organisms and return the raw materials to the environment.At the end of the food chainTwo major groups of decomposers are:BacteriaFungiDecomposer clips: 1, 2
10 ConsumersAn organism that obtains energy by feeding on other organisms.Ex: Deer, Humans, Snakes, Bat, Cat, Hippopotamus, Cricket, Rabbit
11 Herbivores Herb is latin for plant Herbivores are consumers that eat only producers. (plant eaters)Ex: Butterflies, deer, elephants, giraffes, mice.Sun Producer PrimaryConsumer
12 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.
13 Carnivores Consumers that eat ONLY other consumers. Carn is Latin for flesh or meat.Consumers that eat ONLY other consumers.( Meat -Eaters)Ex: T-rex, Tigers, Lions, Ladybugs, Spiders.
14 Insectivores (type of carnivore) Animal that eats insectsEx: bats, shrews, aardvarks, anteaters, and othersExample clips: aardvark, shrew, anteaterInsectivores (type of carnivore)
15 A pig eats fruit, eggs, corn, and earthworms. Omnivore
16 A frog eats insects, earthworms, and spiders. CarnivoreInsectavore
17 eats grass, leaves, twigs, and shrub Herbivore:
18 A raccoon eats almost anything including berries, acorns, baby mice, baby birds & eggs, frogs, fish, and even some snakes.Omnivore
31 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