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bio test 3.1
bio test 3
31
Biology
Undergraduate 1
04/22/2012

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Term
ecosystem
Definition
all components of area {biotic: plants/animals/insects}; abiotic: h20/soil
Term
endocrine glands
Definition
excrete hormones in interior: testosterone; estrogen, thyroxine, adrenaline
Term
endorphins
Definition
feel good" hormones
Term
endoskeleton
Definition
internal hard supporting structure, produces blood solids; human 206 bones
Term
essential plant nutrients
Definition
nitrogen, phosphorus, K potassium; macronutrients; fixed by root nodules
Term
estuary
Definition
river meet ocean { interface} with varying salt content; very productive ecosystem
Term
eutrophic
Definition
excess nutrients which cause "blooms"/red tides from fertilizers/pollutants
Term
exoskeleton
Definition
insects, crabs, bi-valves; external skeleton
Term
Exocrine
Definition
exterior excreation: saliva, milk, sweat, tears, digestive juices
Term
exotic species
Definition
nonnative species, introduced , feral, foreign/alien; outcompete natives
Term
fiber; soluble and insoluble
Definition
bind to cholesterol, and help move fecal material
Term
fertility rates
Definition
# of children a woman of chiledbearing age could have; earlier start= more kids
Term
food web/chain
Definition
small amount of energy passed up feeding levels
Term
fresh water
Definition
<1% in lakes, rivers,streams for humasn use; 2.5% total fresh water in glaciers/snow
Term
goiters
Definition
caused by lack of iodine; overactive thyroid
Term
glucose
Definition
energy from sugar, conveyed to cells and active transport into cells by insulin
Term
glycogen
Definition
energy stored in liver; converted to and from glucose by insulin for cell use
Term
grey matter
Definition
composed of nerve cell bodies, brain cortex exterior, spinal cord- interior
Term
guard cells
Definition
surround stomata on plant leaves, prevent/allow water and gas entry/escape
Term
gymnosperm
Definition
produce pinecones, no flowers, means naked seed
Term
habitat
Definition
address, where species live
Term
hadley celss
Definition
circulation of cells over equator, 30*N and south, 60* N and South cause trade winds
Term
heat loss during conversion
Definition
passed from one trophic level to next; 10% passed, rest used for growth, reprod
Term
hydrologic cycle(water)
Definition
recycling water: evaporation, condensation, precipitation, runoff or infiltration. transportation adn evapotranspiration
Term
hormone
Definition
travels in blood across synapse to affect specific organ/ receptor cell
Term
human population growth
Definition
exponential; can exceed carrying capacity; Hunt/gather - ag rev- ind rev
Term
humus
Definition
decaying organic matter in soil; natural fertilizer
Term
hypothalamus
Definition
controls pituitary, other organs; temperature and h20 balance
Term
IPM
Definition
integrated pest mgmt, use several methods to keep pests below economic damage
Term
indicator species
Definition
organism reveals ecology information; population/environment stable, under stress
Term
interspecific competition
Definition
between 2 species wanting same resource
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