abyssopelagic zone
accessory digestive organs
acetabulum
adaptation
alimentary canal
alpine
aorta
appendix
aquifer
arboreal
artery
atmosphere
atoll
ATP
atria
atrium
auditory tube (eustacian tube)
avalanche
ball and socket joint
barrier reef
bathypelagic zone
benthic zone
bicuspid valve (mitral valve)
bile
biodiversity
biofuels
bioluminescence
biomass
biome
biosphere
bluff
bolus
botanist
bronchi
bronchioles
browse
burrow
camouflage
capillary
carbon dioxide
carnivore
carpals
carrion
cartilage
cecum
cell
cell wall
cervical vertebrae
chloroplast
chromosome
chyme
clavicle (collar bone)
climate change
coccyx
cochlea
collar bone (clavicle)
colony
community
condensation
continental divide
Continental Drift Theory
contraction
coral bleaching
cornea
coxal bones
cristae
cryptic
cytoplasm
decomposer
deforestation
diaphragm
digest
digestive system
dislocated
diurnal
diversity
DNA
dodo
domesticated
drought
duodenum
ear drum
Earth’s crust
echolocation
ecological footprint
ecosystem
ecotourism
elevation
end-Pleistocene
endangered
environment
epipelagic zone
epipelagic zone
equator
equilibrium
erg
esophagus
estivation
eukaryotic
eustacian tube (auditory tube)
evaporation
exhale
exosphere
external respiration
extinct
false ribs
fault
femur
fibula
flash flood
floating ribs
fluorescent lamps
foliage
food chain
food web
foothill
forage
fossil record
fringing reef
gall bladder
gastric juice
gastric pits
gastrointestinal tract or alimentary canal
gene
gestation
glacier
global warming
gnaw
goblet cells
golgi apparatus
gorge
grazing
greenhouse effect
greenhouse gases
groundwater
grub
habitat
hadalpelagic zone
hallux
herbivore
herd
hibernation
hinge joint
humerus
hydrochloric acid (HCL)
icepack
ileum
ilium
incus
inhale
insectivorous
intercostals muscles
internal respiration
intertidal zone
iris
irrigation
ischium
jejunum
joint
karyotype
keystone species
lacrimal gland
large intestine (colon)
ligament
lithosphere
liver
long bone
lumbar vertebrae
lysosome
malleus
meadow
mechanical digestion
mesopelagic zone
mesosphere
metacarpals
metatarsals
meteor
methane
migrate
mineral
mirage
mitochondria
mitral valve (bicuspid valve)
monoculture
monogamous
nectar
nocturnal
nucleus
nutrient
oasis
olecranon process
omnivore
optic disc
oral cavity
Order
organelles
organism
ossa coxae
overgraze
oxygen
ozone-depleting gases
pampa
pancreas
Pangaea
papilla
patella
peat
pelagic division
pelvic girdle
pelvis
pepsin
peristalsis
permafrost
pH
phalanges
pharynx
photoreceptors
photosynthesis
photovoltaics
phytoplankton
pioneering
plain
plankton
plant transpiration
plasma membrane
plate tectonics
plateau
pleura
pollen
pollinate
population
pore
prairie
precipitation
predator
prey
pride
producers
prokaryotic
pubis
pulmonary arteries
pulmonary veins
pulmonary ventilation
pupil
radius
rectum
respiration
respiration
retina
ribcage
ribosomes
ritual
rodent
rotator cuff
rough endoplasmic reticulum
sacrum
saliva
salivary glands
sap
satellite
savanna
scavenger
sclera
sclera
semi arid
semicircular canals
semiconductor
semipermeable
shrub
sky glow
slash and burn
small intestine
smog
smooth endoplasmic reticulum
snowline
solitary
space shuttle
spawn
stapes
steppes
sternum
stomach
stratosphere
sublimation
tarsals
tarsals
thermosphere
thoracic vertebrae
threatened
tibia
toxic waste
trachea (windpipe)
transcription
transport of respiratory gases
treaty
tricuspid valve (semilunar valve)
tropical
troposphere
true ribs
tympanic membrane
ulna
ultraviolet light
uvea
vacuole
veins
vena cava
ventricle
vesicle
villi
watt
weather
zooxanthellae