Science 7 Flashcards
(35 cards)
Ecologist
An expert or student of ecology
Niche
An organisms purpose
Ecosystem
A biological community of interacting organisms and their physical environment
Biotic factors
A living thing, an animal or a plant, that influences or effects an ecosystem
Abiotic
Living organisms
Tolerance
Each organism has a tolerance range for each factor
Optimum range
Best suited environment
Limiting factor
Prevent population from growing any larger (threatens organisms tolerance/survival
Carrying capacity
Maximum number of organisms
Biodiversity
Number of different species
Biogeochemical cycles
The movement of chemicals through both the earth and living things
Hydrologic
Begins with water evaporation, as moist air lifts, water cools.
Atmospheric cycles
Carbon cycle is the Biogeochemical cycle by which carbon is changed by the biosphere
Sedimentary cycles
Include iron, calcium, phosphorus and more.
Levels of ecology
Biosphere > biome > ecosystem > community > population > organism —
Ecology
The branch of biology that deals with the relations of organisms to one another and its physical surroundings.
Biosphere
Regions of the surface, atmosphere and hydrosphere of the earth
Atmosphere
Air
Lithosphere
Land
Hydrosphere
Water
Biome
Categories of the biome based on dominant plant and animal life
Community
All living things in a ecosystem
Population
On species in an ecosystem
Individual
Any single organism