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bio test 3.2
bio test 3.2
34
Biology
Undergraduate 1
04/29/2012

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Term
joints
Definition
ligaments surround; some nonmovable (skull); ball and socket, gliding. hinge
Term
keystone species
Definition
has unique role in ecosystem; may control other species
Term
large intestine function
Definition
primarily water absorption, some vitamin production
Term
legume nitrogen fixation
Definition
root nodules; takes atmospheric N and makes available to plants as NH4
Term
ligaments and tendons
Definition
attached to bones for stavility and muscles attached to bonces by - respectively
Term
liver functions
Definition
produce bile; toxin removal; stores glycogen, releases glucose when needed
Term
loam
Definition
most desirable soil type; has decating humus to help with tilth
Term
marine
Definition
salty aquatic environment; 72% of H20 on planet (oceans contain 97.5%)
Term
melatinin
Definition
promotes sleep, regulates circadian rhythm
Term
metamorphosis
Definition
takes place in insects and amphibians; part of growth in series to adulthood
Term
milanovitch cycles
Definition
cause progression of ice ages/wwarming; eccentric orbit, axis tilt. and wobble
Term
muscle force
Definition
only by pulling in one direction; muscle pairs at least, mat have multiples
Term
muscle origin and insertion
Definition
attachment and insertion determines what moves (named by convention)
Term
musculature of GI tract
Definition
2 layers in intestines, 3 layers in stomach (smooth muscles only)
Term
myelin sheath
Definition
surrounds axon, lipid composition; seeds nerve impulses- Jumps" to nexy gap
Term
mycorrhizae
Definition
symbiotic relationship between fungi and root to provide nutrients to plant
Term
nerve cell anatomy
Definition
dendrites, cell body, spinal column, and brain, conveys impulse to stimulate response
Term
nerve tissue
Definition
throughout body, spinal column, and brain, conveys impulse to stimulate response
Term
neurohormone
Definition
chemical produced be nerve and secreted into blood to affect specific target
Term
neurotransmitter
Definition
diffuses across synaptic cleft after exocytosis from axon terminus
Term
niche
Definition
occupation, what species does
Term
nervous system receptor
Definition
cell that contains neurotransmitter
Term
nervous system CNS
Definition
central nervous system: brain and spinal column
Term
Nervous system PNS
Definition
peripheral nervous system: nerve impulse when you prick your finger
Term
ocean currents
Definition
modify climate along oceans/ large lakes (Gr.Lakes)
Term
gulf stream
Definition
warms coast of England, Ireland
Term
ozone hole, (stratosphere)
Definition
O3 destruction - by CFCs, Halons, UV penetrates atmosphere; cause: cancer cataracts, immune problems.
Term
pancreas
Definition
produces insulin (assist glicose into cell) and digestive juices, bicarbonate buffer
Term
peristalsis
Definition
smooth muscles mover bolus/chyme through digestive system, start at esophagus
Term
pheromones
Definition
act on another (not one producing it): attracts sexual mate
Term
phloem
Definition
flow from photosynthesis to sink ( non_photosynthesis cells) = roots growth
Term
plant drugs/resources
Definition
williow,poppies,foxglove,aspirin,morphine,digitalis, wood,ore,minerals
Term
poor soils in tropical rainforests
Definition
most nutrients held in foliage, cycle rapidly thru decomposition back to plant
Term
population replacement
Definition
is 2.1 children per women, replacement level fertility.
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