Responses & Behavior
A change in what an organism does (movement, timing actions) in response to stimuli is this type of response.
what is behavioral response
these organisms capture energy from sunlight or inorganic molecules to build organic matter
what is producers/ autotrophs
evaporation, condensation, precipitation, and transpiration are key processes in this cycle
what is water cycle
when resources are unlimited, population size increases in this pattern
what is exponential growth
Mutualism, commensalism, and parasitism are all types of this broader interaction category
what is symbiotic relationships
a change in internal processes (heart rate, hormone levels, stomata opening) is this type of response.
what is physiological response
this relationship diagram shows many feeding interactions in a community
what is food web
the largest reservoir of nitrogen on earth is here.
what is atmosphere
a population growth model that levels off around a carrying capacity is this
what is logistic growth
a species with a disproportionate impact on ecosystem structure, despite low abundance is this
what is keystone species
This plant response describes directional growth toward light.
what is phototropism
arrows in a food chain/web point in the direction of this transfer
this microbial process converts atmospheric N2 into NH3/NH4+
what is nitrogen fixation
the maximum population size an environment can sustain is called this
what is carrying capacity
this index is commonly used in AP bio to quantify species diversity from abundance data
what is shannon diversity index
movement toward or away from stimulus in animals ( or single celled organisms) is described with this term
what is taxis
a general rule of thumb says only about this percent of energy transfers to the next trophic level
what is about 10%
photosynthesis, respiration, decomposition, and combustion are key parts of this cycle
what is carbon cycle
disease and competition are examples of these limiting factors
what is density dependent
an introduced species that outcompetes natives for resources is called this
what is invasive species
this term describes activity patterns that occur primarily at night.
what is nocturnal
these organisms break down dead organic matter and recycle nutrients.
what is decomposers
weathering releases this nutrient (as phosphate) from rocks
what is phosphorus
hurricanes and drought are examples of these limiting factors
what is density independent
This human caused nutrient enrichment can lead to algal blooms and hypoxia
what is eutrophication