Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
biodiversity
|
sum total of genetically based variety of all organisms in the biosphere 6.3
|
|
|
ecosystem diversity
|
variety of habitats, communities, and ecological processes in the living world.6.3
|
|
|
species diversity
|
number of different species in the biosphere.6.3
|
|
|
genetic diversity
|
sum total of all different forms of genetic info carried by all organisms living on earth today 6.3
|
|
|
extinction
|
when a species disappears from all or pard of its range 6.3
|
|
|
endangered species
|
a species whose population size is declining in a way that places it in danger of extinction6.3
|
|
|
habitat fragmentation
|
when development splits ecosystems into pieces , becoming biological 'islands' 6.3
|
|
|
biological magnification
|
concentration of harmful substance increase in organisms at higher trophic levels in a food chain or web
DDT example- explain 6.3 |
|
|
invasive species
|
species that get transported to a foreign area and reproduce rapidly, crowding out native species 6.3
|
|
|
conservation
|
the wise management of natural resources, including the preservation of habitats and wildlife 6.3
|
