Energy and Organization in Ecosystems Crossword Puzzle

QUESTIONS LIST:

• trophic level : the "feeding level" on an energy pyramid
• sun : the primary source of energy for all ecosystems
• no : does an energy pyramid have a limitless number of trophic levels?
• autotroph : an organism that can make its own energy, usually by photosynthesis
• heterotroph : an organism that must get energy from another organism, usually by eating
• carnivore : an organism that eats meat
• omnivore : an organism that eats plants and meat
• herbivore : an organism that eats only plants
• consumer : another word for a heterotroph
• producer : another word for an autotroph
• food chain : shows the simple pathway of energy from producer to consumer -- arrows point to the way energy is being tranferred
• food web : a combination of food chains
• ninety : what percentage of usable energy is lost from one trophic level up to the next?
• ten : what percentage of usable energy can be passed up to the next trophic level?
• to : on a food chain, does the arrow go to or from the "eater"?
• photosynthesis : what cellular process transforms energy from the sun into energy for autotrophs (producers)
• abiotic : the sun, wind, water, and other non-living parts of an ecosystem are _ factors
• biotic : plants, animals, bacteria, fungi, and all living parts of an ecosystem are _ factors