Show:
Food/Energy Pyramids
Cycles
Organism Interactions
Populations and Habitats
Mystery
100
simplest way to look at energy flows, show a single sequence of feeding relationships
What is a food chain
100
how water re-enters the atmosphere as a gas
What is evaporation
100
one organism captures and feeds on another
What is predation
100
the factors that an organisms needs to survive- HOW an organism lives
What is a niche
100
most of the energy in an ecosystem is lost as this as it is transferred between trophic levels
What is heat!
200
the complex networks of feeding relationships that shows the flow of energy within and beyond a given ecosystem
What is a food web
200
burning of fossil fuels releases large amounts of this into the atmosphere, adding to the greenhouse effect
What is carbon
200
two organisms of the SAME species fight for the same limited resource like food or shelter
What is intraspecific competition
200
two species competing for the same resources CANNOT survive together
What is competitive exclusion
200
type of growth when resources are abundant and a population size increases very rapidly
What is exponential growth
300
species that holds together an ecosystem; changes to this species can affect the entire ecosystem
What is a keystone species
300
produced during photosynthesis, used during cellular respiration
What is oxygen
300
an ecological relationship where both organisms benefit
What is mutualism
300
the way individuals in a given population spread out
What is population distribution
300
species that occupy similar niches, but live in different geographic regions (a tree frog in Georgia vs. a tree frog in the rain forest)
What is ecological equivalents
400
consumers that feed on one specific organism or a small number of organisms
What are specialists
400
the only cycle with NO atmospheric portion- majority is stored within rocks
What is phosphate cycle
400
an ecological relationship where one organism is harmed while the other is benefited
What is parasitism
400
limited factors affected by the number of individuals in a given area (competition, predation)
What is density-dependent limiting factor
400
a diagram that shows the number of surviving members over time from a measured set of births
What is a survivorship curve
500
the levels of a food/energy pyramid
What is producers, primary consumers (herbivores), secondary consumers, tertiary consumers (top predators)
500
the process in which bacteria and lighting convert atmospheric nitrogen into usable forms like ammonia and nitrates
What is nitrogen fixation
500
the atlantic puffin uses nests left behind by rabbits- this is an example of
What is commensalism
500
four things that affect population size (density)
What is immigration, emmigration, deaths and births
500
the sequence of biotic changes that regenerate a damaged community or create a community in a previously uninhabited area; include BOTH types!
What is succession - primary (new community) and secondary (regrowth from a damaged ecosystem)