Ch 5 Test Flashcards
an atmospheric gas that increases when fossil
fuels are burned
Carbon dioxide
evidence of excessive fertilizer use
Algal bloom
a final and stable community
Climax community
a type of succession that occurs on abandoned farmland
Old field secession
a gradual process of change and replacement of the types of species in a community
Ecological secession
a common type of succession that occurs on a surface where an ecosystem has previously
existed
Secondary secession
What term is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism
Food chain
What term is used to refer to the many feeding relationships that are possible in an ecosystem
Food web
In the carbon cycle, where do the producers get their carbon
The atmosphere
Where would you most likely find nitrogen fixing bacteria
On the routes of legumes
Which of these is a large reservoir of nitrogen that is unusable by most organisms
The atmosphere
