quiz 1 Flashcards
population
groups of organisms ( same species)
community
groups of species or pop living in same space
ecosystem
abiotic non - living factors
biosphere
earth considered as one big ecosystem
exponential growth
typical successful population in a new place
Carrying capacity
max number that any species can handle in a habitat
K
abbrev. for carrying capacity
limiting factors
limit pop. growth
food, space, predators
logistic growth
non-exponential, influenced by limiting facors
density independent limiting factors
limit growth for reasons related to density
density independent limiting factors
limit growth but not because of density
Homeostasis
staying around the number of their carrying capacity
diversity
variation in their population or number of species in an ecosystem
dismal theory
limiting factors that apply to human cause and population.
Malthus
gave us Dismal theory
food chain
when energy is transferred from one organism to another
food web
food chain but showing all the options
energy pyramid
food chain but it has graphics of what energy is at each level
biomass
dry weight of organisms at any level
Biological magnification
toxic chemicals become highly concentrated at high levels of the energy pyramid
