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Prefixes, Suffixes and
Root Words
Biology Home Page
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Week 1 |
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Week 2 |
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a- |
not, without |
ab-, abs- |
off, away from |
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amoebe- |
change |
an- |
without, not |
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abysso- |
deep |
acanth- |
spine |
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annel- |
ring |
annu- |
year |
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acro- |
the top |
aero- |
air, atmosphere |
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anomal- |
irregular, uneven |
antho- |
flower |
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albi- |
white |
alga- |
seaweed |
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apex- |
tip |
aplysio- |
sponge, filthiness |
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alti- |
high, tall |
alve- |
cavity, pit |
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aqua- |
water |
arachno- |
spider |
| Week 3 |
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Week 4 |
| arthor- |
joint |
astro- |
star |
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bryo- |
moss |
calori- |
heat |
| auto- |
self |
avi- |
bird |
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capill- |
hair |
carno- |
flesh |
| bacterio- |
bacteria |
balaeno- |
whale |
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caryo- |
nucleus |
cephalo- |
head |
| batho- |
deep |
bio- |
life |
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chlor- |
green |
chondri- |
cartilage |
| blast- |
growing, a germ |
branchio- |
gill |
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cilio- |
small hair |
coclo- |
hollow |
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Week 5 |
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Week 6 |
| -cyano- |
dark blue |
-cyst |
bladder, bag |
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en- |
in, into |
endo- |
inner, within |
| -cyte |
cell |
delphi- |
dolphin |
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entero- |
gut |
epi- |
upon, above |
| di- |
two |
diplo- |
double |
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estuar- |
the sea |
exo- |
out, without |
| dors- |
back |
echino- |
spiny |
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fauna- |
animal |
flagell- |
whip |
| eco- |
house, abode |
ecto- |
outside, outer |
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flora- |
flower |
fossili- |
dug up |
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Week 7 |
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Week 8 |
| fuco- |
red |
geno- |
birth, race |
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herbi- |
plant |
hetero- |
different |
| geo- |
earth |
globo- |
ball |
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holo- |
whole |
hydro- |
water |
| gnatho- |
jaw |
guano- |
dung |
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hygro- |
wet |
hyper- |
over, above |
| gymno- |
naked, bare |
helio- |
the sun |
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hypo- |
under |
ichthyo- |
fish |
| helminth- |
worm |
hemi- |
half |
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infra- |
below |
insecti- |
cut into |
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Week 9 |
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Week 10 |
| inter- |
between |
involute- |
intricate |
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lati- |
broad, wide |
lemni- |
water plant |
| iso- |
equal |
-ite |
rock |
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limno- |
marshy lake |
lipo- |
fat |
| juven- |
young |
juxta- |
near to |
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litho- |
stone |
luci- |
light |
| kilo- |
one thousand |
lacto- |
milk |
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luna |
moon |
macro- |
large |
| lamino- |
layer |
latero- |
side |
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mamilla- |
teat |
mandibulo- |
jaw |
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Week 11 |
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Week 12 |
| mantle- |
cloak |
mari- |
the sea |
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meteor- |
in the sky |
-meter |
measure |
| masti- |
chewing |
mastigo- |
whip |
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-metry |
science of measuring |
milli- |
thousandth |
| maxillo- |
jaw |
medus- |
a jellyfish |
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mio- |
less |
-morph |
form |
| mega- |
great, large |
meridio- |
noon |
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myo- |
muscle |
nemato- |
thread |
| meso- |
middle |
meta- |
after |
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noct- |
night |
-nomy |
the science of |
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Week 13 |
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Week 14 |
| nucleo- |
nucleus |
nutri- |
nourishing |
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phyto- |
plant |
pneuma- |
air, breath |
| o-, oo- |
egg |
octa- |
eight |
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pod- |
foot |
poly- |
many |
| oculo- |
eye |
odonto- |
teeth |
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pre- |
before |
pseudo- |
false |
| omni- |
all |
oto- |
hear |
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pulmo- |
lung |
quadra- |
four |
| pari- |
equal |
photo- |
light |
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rhizo- |
root |
semi- |
half |
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Week 15 |
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| septi- |
partition |
sessil- |
sedentary |
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| -sis |
process |
spiro- |
spiral, coil |
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| stoma- |
mouth |
sub- |
below |
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| symbio- |
living together |
taxo- |
arrangement |
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| xantho- |
yellow |
zoo- |
animal |
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