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Chapter 3 Biosphere

QuestionAnswer
study of interactions among and between organisms ecology
organism, population, community, ecosystem, biome, biosphere levels of orginazation
group of ecosystems that have the same climate biome
can breed and produce fertile offspring species
make up first trophic level autotroph/producer
when autotrophs use light energy from the sun to power chemical reactions photosynthesis
when organisms use chemical energy to produce carbohydrates chemosynthesis
rely on other organisms for their energy and food supply heterotroph/consumer
eats plants herbivore
eats animals carnivore
eats plants and animals omnivore
eat plant and animal remains and other dead animal detritivore
break down organic matter decomposer
steps in which organisms transfer energy by eating and being eaten food chain
links all the food chains in an ecosystem together food web
cellular respiration
each step in a food chain or food web trophic level
organisms in different feeding system ecological pyramid
connect all other aspects of the biosphere biogeochemical cycle
when an ecosystem is limited by a single nutrition that is scarce or cycles very slowly limiting nutrient
when an aquatic ecosystem receives a large input of a limiting nutritent algal bloom
Created by: clairesinak
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