Ecology Retake Flashcards
taxis and kenisis
a change in activity in a directional response to a stimulus
a population will grow exponentially if
there is no limiting factor
inter specific competition
when individuals of different species compete for the same resources in an ecosystem
succession in communities coexist because..?
each existing community changes the environment
the number of trophic levels in an ecological pyramid?
minimum of two
maximum of four
aposmatic coloration
Conspicuously recognizable markings of an animal that serve to warn potential predators of the nuisance or harm that would come from attacking or eating it
what nutrients is replenished in the soil?
nitrogen
how primary and secondary succession differers
occurs in essentially lifeless areas—regions in which the soil is incapable of sustaining life. Secondary is where he soil is still intact