Vocabulary

Nature at Risk

Vocabulary

Terms & Definitions

  • carnivore
    meat-eating animals
  • deciduous
    bushes and trees that shed their leaves at the end of a growing season
  • ecosystem
    a natural arrangement of living organisms interacting within their physical environment to create a stable system
  • endangered
    in danger of extinction throughout (all or a significant portion of) its range if current trends affecting its population continue
  • environment
    the external surroundings in which an organism lives
  • equilibrium
    a state of balance between opposing forces or influences
  • evolution
    changes in organisms through successive generations that allow new species to develop
  • exploitation
    over use of a natural resource for one's own profit or advantage
  • extinction
    the loss of an entire species so there are no living members
  • gene pool
    the total number of genes or genetic information possessed by all the reproductive members of a species
  • herbivore
    plant-eating animals
  • lineage
    a direct descendent from an ancestor; ancestry
  • niche
    the functional position of an organism in its environment
  • species
    a group of organisms that closely resembles one another, that breeds under natural conditions, and produces fertile offspring
  • threatened
    any species likely to become endangered in all or a significant portion of its range