Biology Word List

A large biology word list including over a thousand words related to the study of biology, mostly high school level.

abiotic factor
abscisic acid
abscission
absolute age
accessory pigment
acclimation
acetyl CoA
acid
acid precipitation
acoelomate
activation energy
active site
active transport
adaptation
adaptation
adaptive radiation
adenosine triphosphate (ATP)
adhesion
adventitious root
aerobic respiration
aflatoxin
agar
age structure
Agent Orange
agricultural revolution
agriculture
alcoholic fermentation
alga
algal bloom
alginate
allele
allele frequency
allopatric speciation
alternation of generations
amino acid
ammonification
amniocentesis
amoebocyte
amoeboid movement
anaerobic
anal pore
analogous structure
anaphase
angiosperm
animal
Animalia
annual ring
anterior
anther
antheridium
antheridium
antibiotic
antibiotic resistance
anticodon
aphotic zone
apical dominance
apical meristem
apical organ
aqueous solution
Archaea
archaea
Archaebacteria
archegonium
archenteron
artificial selection
ascocarp
ascogonium
ascospore
ascus
asexual reproduction
aspirin
atmosphere
atom
atomic number
attenuated virus
autosome
autosome
autotroph
autotroph
auxin
bacillus
Bacteria
bacteriophage
bacteriophage
bark
base
base sequence
base unit
base-pairing rules
basidiocarp
basidiospore
basidium
bell curve
benthic zone
biennial
bilateral symmetry
binary fission
binary fission
binomial nomenclature
biodiversity
biodiversity
biodiversity hotspot
bioethics
biogenesis
biogeochemical cycle
biogeography
bioindicator
bioinformatics
biological
biological magnification
biological species concept
biology
bioluminescence
bioluminescence
biomass
biome
bioremediation
biosphere
biosphere
biotic factor
birth rate
blade
blastopore
blastula
bolting
botany
bryophyte
bud
bud scale
budding
buffer
Calvin cycle
CAM pathway
cancer
canopy
capillarity
capsid
capsule
carbohydrate
carbon cycle
carbon fixation
carcinogen
carcinoma
carnivore
carotenoid
carpel
carrageenan
carrier
carrier protein
carrying capacity
catalyst
cell
cell
cell differentiation
cell division
cell plate
cell theory
cell wall
cellular respiration
cellular slime mold
central vacuole
centriole
centromere
cephalization
cereal
cerebral ganglion
chaparral
chemical bond
chemical reaction
chemiosmosis
chemosynthesis
chemosynthesis
chemotaxis
chemotroph
chemotropism
chitin
chlorofluorocarbon (CFC)
chlorophyll
chlorophyll
chloroplast
chloroplast
choanocyte
chordate
chorionic villi sampling
chromatid
chromatin
chromosome
chromosome
chromosome map
cilium
cilium
citric acid
clade
cladistics
cladogram
class
cleavage
climax community
cloaca
clone
clone
cloning by nuclear transfer
closed circulatory system
cnidocyte
coacervate
coccus
codominance
codominance
codon
coelom
coenocyte
coevolution
cohesion
cohesion-tension theory
collenchyma
colloblast
commensalism
community
companion cell
complementary base pair
complete dominance
complex character
compound
compound leaf
compound light microscope
concentration
concentration gradient
condensation reaction
cone
conformer
conidiophore
conidium
coniferous tree
conjugation
conjugation
conservation biology
consumer
contractile vacuole
contractile vacuole
control group
convergent evolution
coral reef
cork cambium
cortex
cotyledon
covalent bond
critical night length
cross-pollination
crossing-over
cryptosporidiosis
cultivar
cuticle
cuticle
cuticle
cutting
cyanobacteria
cyst
cytokinesis
cytokinin
cytolysis
cytoplasm
cytoskeleton
cytosol
day-neutral plant
death rate
deciduous
deciduous tree
decomposer
deletion
demographic transition
denitrification
density-dependent factor
density-independent factor
deoxyribonucleic acid (DNA)
deoxyribose
dependent variable
derived character
desert
detritivore
deuterostome
developed country
developing country
development
diatom
diatomaceous earth
dicot
differentiation
diffusion
dihybrid cross
dimorphism
diploid
directional selection
disaccharide
dispersion
disruptive selection
disturbance
divergent evolution
division
DNA fingerprint
DNA polymerase
DNA replication
DNA vaccine
domain
domain
dominant
dormancy
dormancy
dorsal
dorsal nerve cord
double fertilization
ecological model
ecological succession
ecology
ecology
ecosystem
ecosystem
ecotourism
ectoderm
electron
electron transport chain
electrophoresis
element
elephantiasis
embryo sac
emerging disease
emigration
emigration
endocytosis
endoderm
endodermis
endoplasmic reticulum
endoskeleton
endospore
endosymbiosis
endotoxin
energy
enhancer
enterocoely
envelope
environmental science
enzyme
enzyme
epicotyl
epidermis
epidermis
epiphyte
equilibrium
equilibrium
estuary
ethephon
ethylene
Eubacteria
euchromatin
euglenoid
Eukarya
eukaryote
eutrophic lake
evolution
evolution
exocytosis
exon
exoskeleton
exotoxin
experiment
experimental group
exponential model
extinction
eyepiece (ocular lens)
eyespot
facilitated diffusion
facultative anaerobe
FAD
fall color
family
fatty acid
fermentation
fertilization
fertilizer
fibrous root system
fiddlehead
filament
filarial worm
filter feeding
fitness
flagellum
flagellum
flame cell
fluke
food chain
food web
fossil
fragmentation
frameshift mutation
freshwater wetland
frond
fruit
fruiting body
functional group
Fungi
gametangium
gametangium
gamete
gametocyte
gametophyte
gasohol
gastrodermis
gastrovascular cavity
gastrula
gastrulation
gel electrophoresis
gemmule
gene
gene expression
gene flow
gene pool
gene therapy
gene therapy
generalist
generative cell
genetic code
genetic counseling
genetic disorder
genetic diversity
genetic drift
genetic engineering
genetic recombination
genetics
genome
genome
genotype
genotypic ratio
genus
geographic isolation
geosphere
germ layer
germ-cell mutation
germinate
giardiasis
gibberellin
gill
glycocalyx
glycolysis
Golgi apparatus
gradualism
grafting
Gram-negative bacterium
Gram-positive bacterium
granum
gravitropism
greenhouse effect
gross primary productivity
groundwater
growth rate
growth regulator
growth retardant
guard cell
gullet
gymnosperm
habitat
half-life
halophile
haploid
Hardy-Weinberg genetic
hay fever
heartwood
helicase
herb
herbivore
heredity
hermaphrodite
hermaphrodite
heterospory
heterotroph
heterotroph
heterozygous
hilum
histone
homeobox
homeostasis
homeotic gene
homologous chromosome
homologous structure
homospory
homozygous
hookworm
hornwort
Human Genome Project
hunter-gatherer lifestyle
Huntington’s disease
hydrogen bond
hydrolysis
hydronium ion
hydrosphere
hydroxide ion
hypertonic
hypha
hypocotyl
hypothesis
hypotonic
immigration
immigration
inactivated virus
inbreeding
incomplete dominance
incomplete dominance
independent assortment
independent variable
indoleacetic acid
inducer
ingestion
insertion mutation
integument
integument
interdependence
intermediate host
internode
interphase
interspecific competition
intertidal zone
intron
inversion
invertebrate
ion
ion channel
ionic bond
isotonic
isotope
isotope
karyotype
keystone species
kidney
kilocalorie
kingdom
kingdom
Krebs cycle
lac operon
lactic acid fermentation
larva
lateral meristem
law of independent assortment
law of segregation
layering
leaflet
legume
length polymorphism
lethal mutation
leukemia
lichen
life expectancy
light reactions
light source
limiting factor
linked gene
lipid
liverwort
logistic model
long-day plant
lung
lymphoma
lysis
lysogenic cycle
lysosome
lytic cycle
macromolecule
macronucleus
macronutrient
magnification
malaria
map unit
mass
mass number
mass number
mastax
matter
medusa
megaspore
meiosis
meristem
merozoite
mesoderm
mesoglea
mesophyll
messenger RNA (mRNA)
metabolism
metabolism
metaphase
metastasis
methanogen
metric system
microevolution
microfilament
micronucleus
micronutrient
micropyle
microscope
microsphere
microspore
microtubule
migration
mitochondrial matrix
mitochondrion
mitosis
mold
molecular genetics
molecule
monocot
monohybrid cross
monomer
monosaccharide
morphology
mouth pore
multicellular
multiple allele
multiple fission
mutation
mutualism
mycelium
mycology
mycorrhiza
NADH
naphthalene acetic acid
nastic movement
natural selection
natural selection
nectar
nematocyst
neritic zone
nerve net
net primary productivity
net venation
net venation
neutron
niche
nitrification
nitrogen cycle
nitrogen fixation
nitrogen-fixing bacteria
nitrogenous base
node
nondisjunction
nonvascular plant
nosepiece
notochord
nuclear envelope
nucleic acid
nucleolus
nucleotide
nucleotide
nucleus
nucleus
nut
nyctinastic movement
objective lens
obligate aerobe
obligate anaerobe
observation
oceanic zone
oligotrophic lake
omnivore
oncogene
oncogene
oogenesis
open circulatory system
operator
operon
oral groove
orbital
order
organ
organ
organ system
organelle
organelle
organic compound
organization
osculum
osmosis
ostium
ovary
ovary
ovule
oxaloacetic acid
oxidation reaction
ozone
ozone layer
P generation
palisade mesophyll
parallel venation
parallel venation
parasitism
parenchyma
parthenogenesis
passive transport
pathology
pedigree
peer review
pelagic zone
pellicle
peptide bond
peptidoglycan
pericycle
permafrost
pesticide
petal
petiole
pH scale
phagocyte
phagocytosis
pharyngeal pouch
pharynx
phenotype
phenotype frequency
phenotypic ratio
phloem
phospholipid
phospholipid bilayer
phosphorus cycle
photic zone
photoperiodism
photosynthesis
photosystem
phototroph
phototropism
phylogenetic diagram
phylogenetics
phylogeny
phylum
phytochrome
phytoplankton
pigment
pilus
pinocytosis
pinworm
pioneer species
pistil
pith
plankton
plant ecology
plant hormone
Plantae
planula
plasma membrane
plasmid
plasmid
plasmodial slime mold
plasmolysis
plastid
plumule
point mutation
polar
polar body
polar nuclei
pollen grain
pollen tube
pollination
pollination
pollution
polygenic
polymer
polymerase chain reaction
polymorphism (SNP)
polyp
polypeptide
polysaccharide
population
population
population density
population genetics
posterior
postzygotic isolation
pre-mRNA
predation
prediction
pressure-flow hypothesis
prezygotic isolation
primary electron acceptor
primary host
primary succession
primer
prion
probability
probe
producer
product
proglottid
prokaryote
prokaryote
promoter
propagation
prophage
prophase
protease inhibitor
protein
protein synthesis
proteome
proteomics
protist
Protista
proto-oncogene
proto-oncogene
proton
protostome
provirus
pseudocoelom
pseudopodium
punctuated equilibrium
Punnett square
purine
pyrimidine
pyruvic acid
quinine
radial symmetry
radicle
radioactive decay
radioactive isotope
radiometric dating
reactant
receptacle
recessive
recombinant DNA
red tide
redox reaction
reduction reaction
regeneration
regulator
regulator gene
relative age
repeats (VNTR)
replication fork
repressor protein
reproduction
reproductive isolation
resolution
restoration biology
restriction enzyme
retrovirus
reverse transcriptase
rhizoid
rhizome
ribonucleic acid (RNA)
ribonucleic acid (RNA)
ribose
ribosomal RNA (rRNA)
ribosome
ribozyme
RNA polymerase
root cap
root crop
root hair
rotifer
roundworm
sapwood
sarcoma
saturated solution
savanna
scanning electron microscope
schistosomiasis
schizocoely
scientific method
sclerenchyma
scolex
secondary succession
seed
seed coat
seed plant
seedling
segmentation
self-pollination
semi-conservative replication
sepal
septum
sessile
sex chromosome
sex chromosome
sex-influenced trait
sex-linked trait
sexual reproduction
sexual selection
shared character
shell
short-day plant
sieve plate
sieve tube
sieve tube member
simple leaf
single nucleotide
sink
smog
sodium-potassium pump
solar tracking
solute
solution
solvent
somatic-cell mutation
sorus
source
specialist
specialization
speciation
species
species diversity
species evenness
species richness
species-area effect
spermatogenesis
spice
spicule
spindle fiber
spirillum
sponge
spongin
spongy mesophyll
spontaneous generation
sporangiophore
sporangiospore
sporangium
spore
sporophyte
sporozoite
springwood
stability
stabilizing selection
stage
stamen
staphylococcus
steroid
stigma
stolon
stomata
strata
streptococcus
strobilus
stroma
structural gene
style
subspecies
substitution
substrate
summerwood
superposition
survivorship curve
sustainability
symbiosis
symmetry
sympatric speciation
synapsis
systematics
taiga
taproot
taxon
taxonomy
tegument
telomere
telophase
temperate deciduous forest
temperate grassland
temperate virus
tendril
tentacle
termination signal
test
testcross
tetrad
thallus
theory
thermoacidophile
thigmonastic movement
thigmotropism
thylakoid
thylakoid
tissue
tissue
tissue culture
tolerance curve
tracheid
trait
transcription
transcription factor
transduction
transfer RNA (tRNA)
transformation
transformation
translation
translocation
translocation
transmission electron
transpiration
transpiration
trichinosis
trichomoniasis
trophic level
tropical forest
tropism
true-breeding
tube cell
tumor
tumor-suppressor gene
tundra
turgor pressure
two-dimensional gel
unicellular
urban ecology
variable number tandem
vascular cambium
vascular plant
vascular tissue
vector
vector
vegetable
vegetative reproduction
vein
vein
venation
ventral
vernalization
vertebra
vertebrate
vesicle
vessel
vessel element
vestigial structure
viroid
virulent
virulent
virus
water cycle
water mold
wax
weed
wood
xylem
yeast
zoonosis
zygosporangium
zygote