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ecology

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Question
Answer
________ same species living together in a given location   Population  
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____ capable of reproducing fertile offsping   species  
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______ all portion of planet that supports life.   BIosphere includes:atmosphere, lithosphere, hydrosphere  
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_______ zone in hydrosphere has only heterotrophic life   aphotic zone  
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consequences of 2 species have the same niche   -competition for resources; extinction of a species -elimination of 1 species in an area -species evolve in divergent dir  
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____ autotrophic that obtain energy from inorganic compds   chemosynthetic bacteria  
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herbivores are more adept at ______ than carnivore   defense  
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_____ 1 benefits but the other is not affected   commensalism  
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_______ both orgs benefits   mutualism  
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relationship b/t lichen and fungus   lichen makes food for fungus. fungus support lichen, conserves water and provides CO2.  
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_____ benefits at the expense of the host   parasitism  
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All__________ are parasites   virus cuz they only function within a host  
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most bacteria are   chemosynthetic / saprophytic  
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most fungi are   saprophytic  
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protists and fungi are grouped as   saprophytes  
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saltwater fish osmoreg   live in hyperosmotic environ; they drink water cuz lose water and excrete salt  
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freshwater fish osmoreg   live in hypoosmotic environ; excrete dilute urine, absorb salts  
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food chain   transfer of energy from plants to a series of orgs  
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the kingdoms that fall under saprophytes   bacteria, fungi, protists  
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food web   crossbranches of foodchains in a community  
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the greater the number of pathways in a foodweb ensures   more stable community  
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______ has the greatest energy in a pyramid of energy   producers  
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______ has the greatest mass in a pyramid of mass   producers  
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N2 is fixed in soil as nitrates by   - lightning - N2 fixing bacteria  
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saprophytes convert nitrates to   ammonia  
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ammonia converted to nitrites (NO2) by   nitifying bacteria  
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____ convert nitrite to nitrate   nitrifying bacteria  
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________ convert ammonia to N2   denitrifying bacteria  
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climax community   pop that exist in balance with the environment  
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pioneer org   first org that settles during an ecological succession eg lichen  
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