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39 Cards in this Set

  • Front
  • Back
eats only producers
trophic level
feeding level in an ecosystem
eats only consumers
eats both producers and consumers
primary consumer
when consumer feeds directly on producers

ie.insects @ birds that eat seeds and fruits, antelope n deer
secondary consumers
eat primary consumers

small ammals and reptiles that eat insects
tertiary consumer
3rd level

eats 2nd consumersq
zoned reserve
area of land that is relatively unditurbed by humansand is surrounded by bufer zones that are minimally impacted by humans
buffer zone
area of a reserve that is minimally impacted by humans
substainable development
use of natural resources in a way that allows them to renew themselves and be available for the future
process by which a DNA template is used to produce a single-stranded RNA
competitive exclusion
one species succeeding over another when the growth of both species is limited by the same resource

ticks, leeches, tapeworms, hookworms,
lives with host and gets nutrients as long as possible

interaction in which one organism consumes another
evaporation of water from a plants leaves
wastes and remains of dead organisms
food web
pettern of feeding in an ecosystem consisting of interconnected and branching food chains
organic material manufactured by producers
primary productivity
rate by which a community aries in a virtually lifeless areas with no soil
energy pyramid
diagram representing energy loss from one trophic level to the next
process by which certain bacteria convert ammonium to nitrates
biomass pyramid
diagram representing the biomass in each trophic level of an ecosystem
pyramid of numbers
representation of the numba of individual oraganisms in each trophic level
nitrogen fixation
process by which certain bacteria convert nitrogen gas to ammonia
variety of life on earth
practice of harvesting or hunting to such a degree that remaining individuales may not be able to replenish the population
conservation biology
application of biology to counter the loss of biodeiversity
ecological succession
series of changes in the species community, often following a disturbance
primary succesion
no soil, no plants, no animals,
volcanic eruption

process by which a community arises in a virtually lifeless area with no soil
secondary succesion
change following a disturbance that damages an existing community but leaves the soil intact

forest fire, still has soil but has to wait for plants to grow again
introduced species
spp moved by humans to new geographic areas, either intentionally or accidentally

rabbits(brought 2 australia) starlings, horse (in america extinct brought back by spanish)
organism that makes its own food and produces organic molecules that serve as food for others
obtains chemical energy by feeding on the producers or on other consumers
break down wastes and dead organisms
interspecific competition
competition between 2 or more species
habitat... how an animal lives eats
a squirrl lives in a tree and eats nuts and sleeps durning the winter...
symbiotic relationship
close interaction between species in which one species live in or on the other
2 species that live together 2 help w/o

rhino n pasite eating bird,
the bird eats the parasites off the rhino n the rhino scares the birds pray away

one species benifits the other is not effected much

shark and tiny fish