The position an organism occupies on the food web/pyramid/or chain., Shows the amount & flow of energy from one trophic level to the next in an ecosystem., Includes all of the biotic and abiotic factors which make up an area., A linear sequence showing how energy moves from one organism to another, A top predator with no other natural predators., Organisms convert sunlight into chemical energy., Organisms that produce their own food, An organism that eats primary consumers (herbivores) for energy, Organisms that consumes producers, An organism in a food web that feeds on secondary consumers, occupying the fourth trophic level., An organism that decomposes organic material., _________________: No process involving energy conversion is 100% efficient., Each trophic level gets only ______% of the energy from the level before it., The total amount of living tissue a trophic level contains., Primary productivity is mainly performed by plants and _____________________, Primary productivity is measured in energy or _______________., ___________________________ among species can lead to changes in behavior, adaptations over time, and possible extinction of less competitive species., ____________________________________ is when species divide resources to reduce competition., When species have similar ____________________, they may compete for resources., Food, space, and ___________________ are common resources that can be partitioned., When species reduce competition by evolving different physical traits, When species coexist by using different parts of the same environment, When species reduce competition by using resources at different times, In the desert, some species like kangaroo rats avoid daytime heat and predators, while some squirrels forage during the day. This is an example of ____________________ partitioning., ________________________ species are critical to the ecosystem's structure, often controlling the population of other species. For example, predators maintain the balance of prey populations, ________________________ species can disrupt the local ecosystem by outcompeting native species for resources., ________________________ species are at risk of extinction.., Bare rock being exposed after a glacier has retreated or melted is an example of ________________ succession., Trees growing back in an abandoned hayfield is an example of _________________ succession., Wildfires clearing out acres of land in California and the local replanting of trees and flowers in the area is an example of _____________ succession..

Unit 2 & 3

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