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Food Chains
Food Chains, Trophic Levels and Ecological Pyramids
| Question | Answer |
|---|---|
| This is a group of interconnected food chains. | Food Web |
| This is the ultimate source of all energy for most food chains. | Sunlight |
| The ____ of an arrow in a food chain points toward the organism doing the eating | Tip |
| This is a sequence of feeding relationships showing what organism eats another. | Foodchain |
| Organisms at the base of all food chains that make their own food. | Producers |
| These producers form the basis of marine food chains | Phytoplankton |
| Organisms that cannot make their own food so they must consume other living things for food. | Consumers |
| The chemical process that producers use to create their own food from the energy of the Sun. | Photosynthesis |
| This is the waste matter and remains of once living organisms. | Detritus |
| An organism that breaks down detritus and form nutrients. | Decomposers |
| These are substances needed by organisms for growth and repair. | Nutrients |
| A _________ consumer eats producers. | Primary |
| A _________ consumer eats primary consumers. | Secondary |
| A _________ consumers eats secondary consumer. | Tertiary |
| A _________ consumers eats tertiary consumers. | Quaternary |
| A consumer that is not hunted by anything else for food. | Topcarnivore |
| Eagles, killer whales, lions and tigers are all examples of _______. | Topcarnivores |
| Rabbits, grasshoppers, squirrels, tadpoles and deer are all examples of ________. | Primaryconsumers |
| Earthworms, fungi and bacteria are all examples of ______. | Decomposers |
| ______ are marine habitats which sunlight cannot reach. | Hydrothermalvents |
| ______ in hydrothermal vents form the basis of vent food chains. | Bacteria |
| The bacteria in hydrothermal vents use the _______ found in the vents to create energy. | Sulfides |
| Only _____% of energy is transferred from one trophic level to the next. | Ten |
| _____% of energy is lost during the transfer from one trophic level to the next. | Ninety |
| This is the position that an organism occupies in a food chain. | Trophiclevel |
| A pyramid of _______ always decreases in size as you move up the trophic levels. | Energy |
| A pyramid of _______ represents trophic levels in terms of the population of organisms at each trophic level. | Numbers |
| This is the dry matter found in living things. | Biomass |
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