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34 Cards in this Set

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  • Back
ecology
study of interactions among organisms
ecosystem
community of living and nonliving things.
biotic factor
any living part of an environment
abiotic factor
nonliving parts of an environment
population
group of individuals of the same species living in an area.
community
all the organisms living in the area
biosphere
all the parts of the planet that are inhabbited by living things
habitat
an animals specific habitat with aboitic and biotic factors
tropics
regions between 23.5 n lattitude and 23.5 s lattitude
polar zones
regoins north of the arctic circle
temperate zones
between the tropics and the polar regoins
current
river like flow pattern within a body of water
microclimate
climate in a specific area than the surronding climate region
photic zone
regoins of body water were light penatrates enabling photo synthisis
phytoplankton
microscopic algae and cyanobacteria
aphotic zone
deep areas of bodies of water
benthic zones
bottom of an aquatic system
estuary
area where fresh water from streams and rivers merges with salty ocean water; productive ecosystem
pelagic zone
open water above the ocean floor
intertidal zone
area of shore between the high-tide and low-tide
neritic zone
area of ocean that extends from the low-tide line out to the edge of the continental shelf
oceanic zone
vast open ocean from the edge of the continental shelf outward
zooplankton
microscopic animals that swim or drift near the surface of aquatic environments
hydrothermal vent
opening in the ocean floor where hot gases and minerals escape from Earth's interior
biome
major type of terrestrial ecosystem that covers a large region of Earth
tropical rain forest
type of forest near the equator that receives as much as 250 cm of rainfall yearly
savanna
grassland with scattered trees; found in tropical regions of Africa, Australia, and South America
desert
land area that receives less than 30 centimeters of rain per year
chaparral
temperate coastal biome dominated by dense evergreen shrubs
temperate grassland
biome characterized by deep, nutrient-rich soil that supports many grass species
temperate deciduous forest
forest in a temperate region, characterized by trees that drop their leaves annually
coniferous forest
forest populated by cone-bearing evergreen trees; mostly found in northern latitudes
tundra
biome in the Arctic Circle or on high mountaintops, characterized by bitterly cold temperatures and high winds
permafrost
permanently frozen subsoil