population change and evolution Flashcards
(49 cards)
taxonomy
the process of classifying living things
3 domains
- archaea
- prokaryotes
- eukaryotes
archeae
mostly extinct
prokaryotes
- no nuclear membrane
- living organism
eukaryotes
- nucleus has membrane
- living organism
eukarya kingdoms
- anamalia
- plantae
- fungi
- protista
population
of same species in an area at a given time
community
lots of populations
ecosystem
lots of communities
symbiotic relationships
- mutualism
- parasitism
- competition
mutalism
positive for both
parasitism
positive for one, negative for one
competition
negative for both
predation
predator populations closely follow changes in prey populations
biotic potential
of potential offspring 1 individual could have
theory of overproduction
not all offspring survive to adulthood
environmental resistance
- biotic or abiotic
- generation is limited by factors in their environments
density dependant
density increase –> loss of population
density independant factor
will limit a population but are not influenced by the size of the population
ex. flood
population measurements
quadrats
quadrats
- 1m^2
- a random area
- volume measurements: m^3 or L(iters)
percent error
(experimental - theoretical) / theoretical x 100 = %
transects
- defined pathway
- useful for a distribution pattern of species within an ecosystem
mark - recapture
- useful for active species
- very accurate