Ecology Review

relationship in which two species live closely together

• resource
• mutualism
• succession
• symbiosis

symbiotic relationship in which one organisms benefits and the other organism is not affected

• invasive (non-native) species
• mutualism 
• nitrogen fixation
• commensalism

symbiotic relationship in which both organisms benefit

• competition
• Mutualism
• nitrogen fixation
• energy pyramid

growth in which the number of individuals in a population gets a lot bigger in each time period that follows 

• primary succession 
• exponential growth 
• succession
• carrying capacity

the process by which a new community replaces another community that has been partially ot totally destroyed 

• exponential growth
• primary succession
• secondary succession 
• succesion 

a relationship between two in which one species, the predator, feeds on the other species, the prey

• chemosynthesis
• predation
• cellular respiration 
• commensalism

largest number of individuals of a population that the environment can support  

• carrying capacity
• primary succession 
• denitrification
• mutualism

a species that takes over to live in an area where no other living thing lives and that starts a cycle in which many other species make that area the place where they live

• pioneer species 
• succession 
• nitrogen fixation
• cellular respiration 

diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat

• succession 
• cellular respiration
• energy pyramid
• biochemical cycle

relationship in which two species live closely together

• resource
• mutualism
• succession
• symbiosis