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12 Cards in this Set

  • Front
  • Back
levels of orgainization within an ecosystem
Organism Population Community Ecosystem
abiotic factors
nonliving part of an ecosystem
adaptions
the behaviors and phsical characteristics of species that allow them to live sucessfully in their environments
parasitism
a relationship in wich one organism (the parasite) lives inside another (the host) and harms it -- host stays alive to help parasite, b/c if host dies, so does parasite
habitat
the place where an organism lives and that provides the things it needs
ecology
the study of how living things interact with each other and their environment
immigration
moving into a population
emigration
leaving a population
what causes a population to increase in size?
when the birth rate is higher than the death rate

when more organisms immigrate than emigrate
what factors limit population growth?
limiting factors-- food, space, weather
what adaptions do prey have that help them survive?
camoflague (spiny bugs), warning color
(frog releases toxic), poison (skunk), protective covering (porcupine), mimicry (fly looking like bee)
what adaptations do predator have that keep them alive?
cheeta- sprints
sundew- uses goo to catch flies
jellyfish- poison
claws, teeth, stingers