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Chapter 4
ecosystems, evolution, kingdoms
12
Environmental Studies
11th Grade
10/16/2007

Additional Environmental Studies Flashcards

 


 

Cards

Term
Ecosystem
Definition
all of the organisms living in an area together with their physical environment
Term
Ecosystems  need 5 things to survive
Definition
o        Oxygeno        Watero        Energyo        Mineral nutrientso        Living organisms
Term
Biotic
Definition
living and once living things (plants, animals, dead organisms, leaves, and waste products)
Term
Abiotic
Definition
non-living things (rocks, water, sand, sunlight, temperature)
Term
Organism
Definition
An individual living thing
Term
Species
Definition
a group of organisms that are closely related & can mate to produce fertile offspring
Term
Population
Definition
all the members of the same species that live in the same place at the same time
Term
Community
Definition
a group of the same species that live in the same place & interact with each other
Term
Habitat
Definition
the place an organisms live  that has specific characteristics that the organisms that live there need to survive
Term
natural selection
Definition
 the unequal survival & reproduction that results from the presence or absence of particular traits
Term
Evolution
Definition
a change in the genetic characteristics of a population from one generation to the next
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