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Ecology & Environment. Chapter 2. Vocabulary. Scavenger Decomposer Food chain Food web Energy pyramid. What are the energy roles in an ecosystem?. Organisms in an ecosystem are either: Producer Consumer Decomposer. Producers. Organisms that makes its own food
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Ecology & Environment Chapter 2
Vocabulary Scavenger Decomposer Food chain Food web Energy pyramid
What are the energy roles in an ecosystem? • Organisms in an ecosystem are either: • Producer • Consumer • Decomposer
Producers • Organisms that makes its own food • Source of all food in an ecosystem • Plants, algae, bacteria photosynthesis
Consumers • Obtains energy by eating other organisms Herbivores = only eat plants Carnivores = only eat animals Omnivores = eat plants and animals Scavenger = feeds on dead organisms
Consumers – Which is which? Label each picture as a herbivore, carnivore, omnivore or scavenger
Decomposers • Break down biotic wastes and dead organisms • They return raw materials back to the ecosystem • They recycle energy! • Mushrooms, bacteria, mold
Pair Share Review • Write one sentence with your pair share partner; finish this sentence: The sun is the main source of energy for producers, consumers and decomposers because ________________________________ _____________________________________________________________________________________________________________________.
How does energy move through an ecosystem? • Energy moves through an ecosystem when one organisms eats another!
Food Chains • Series of events where one organisms eats another. Lake Algae -> Bass Fish -> Eagle • Put an example of a food chain in your notes. Connect grass to you!
Food Webs • Food chain shows one path of energy • Food web shows all the possible paths energy can move *Virtual lab tomorrow!
Energy Pyramids • Diagram that shows how energy moves from lower to higher levels *the most energy is available at the producer level of the pyramid, as energy moves up the pyramid less energy is available
Pair Share Review • With your pair share partner, complete the Energy Flow in Ecosystems worksheet. • 10 minutes! • Will correct when finished!! • No copying! Work together!!
Vocabulary Biome Climate Desert
Vocabulary Rainforest Emergent layer Canopy Understory
Vocabulary Grassland Savanna Deciduous tree
What are the six major biomes? Biome – group of ecosystems with similar climates and organisms • Desert • Rainforest • Grassland • Deciduous forest • Boreal forest • Tundra
Climate Climate = average temp & amount of precipitation *Climate determines a biome by limiting the type of plants that can grow
Prepwork • Pages 63-66 due tomorrow!
