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32 Cards in this Set

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ecology
ecology: scientific study of the interactions among organisms and between organisms and their environment (Concept 34.1)
biotic factor:)
any living part of an environment
abiotic factor:
nonliving physical or chemical condition in an environment (Concept 34.1)
population:
group of individuals of the same species living in a particular area at the same time.
community:
all the organisms living in an area (Concept 34.1)
ecosystem:
community of living things plus the nonliving features of the environment that support them (Concepts 1.1, 34.1)
biosphere:
all the parts of the planet that are inhabited by living things; sum of all Earth's ecosystems (Concepts 1.1, 34.1)
habitat:
an organism's specific environment, with characteristic abiotic and biotic factors (Concept 34.1)
tropics:
regions between 23.5° N latitude and 23.5° S latitude; warmest temperature zones on Earth (Concept 34.2)
polar zones:
the regions north of the Arctic Circle (66.5° N) and south of the Antarctic Circle (66.5° S), that receive the smallest amount of direct sunlight year-round (Concept 34.2)
temperate zones:
latitudes between the tropics and polar regions in each hemisphere (Concept 34.2)
current:
riverlike flow pattern within a body of water (Concept 34.2)
microclimate:
climate in a specific area that varies from the surrounding climate region.
biome :
major type of terrestrial ecosystem that covers a large region of Earth (Concept 34.3)
tropical rain forest:
type of forest near the equator that receives as much as 250 cm of rainfall yearly (Concept 34.3)
savanna:
grassland with scattered trees; found in tropical regions of Africa, Australia, and South America (Concept 34.3)
desert:
land area that receives less than 30 centimeters of rain per year (Concept 34.3)
chaparral:
chaparral: temperate coastal biome dominated by dense evergreen shrubs (Concept 34.3)
temperate grassland:
biome characterized by deep, nutrient-rich soil that supports many grass species (Concept 34.3)
temperate deciduous forest:
forest in a temperate region, characterized by trees that drop their leaves annually (Concept 34.3)
coniferous forest:
forest populated by cone-bearing evergreen trees; mostly found in northern latitudes (Concept 34.3)
coniferous forest:
forest populated by cone-bearing evergreen trees; mostly found in northern latitudes (Concept 34.3)
tundra:
biome in the Arctic Circle or on high mountaintops, characterized by bitterly cold temperatures and high winds (Concept 34.3)
permafrost:
permanently frozen subsoil (Concept 34.3)
photic zone:
regions of a body of water where light penetrates, enabling photosynthesis (Concept 34.4)
phytoplankton:
microscopic algae and cyanobacteria that carry out photosynthesis (Concepts 17.4, 34.4)
aphotic zone: (Concept 34.4)
deep areas of a body of water where light levels are too low to support photosynthesis
benthic zone:
bottom of an aquatic ecosystem; consists of sand and sediment and supports its own community of organisms (Concept 34.4)
estuary:
area where fresh water from streams and rivers merges with salty ocean water; productive ecosystem (Concept 34.4)
pelagic zone:
open water above the ocean floor.
intertidal zone:
area of shore between the high-tide and low-tide lines.`
what is the liquid in a cell
the citoplasm