function SetLeft(Letter) {
if (Letter=='a') {
LeftMenu = 'A -
adaptation
adaptive landscape
adaptive radiation
Ahlquist, Jon
allele
allometric growth
allopatric speciation
amino acid
analogous
anthropocentric
Aristotle
arms race
artificial selection';
}
else if (Letter=='b') {
LeftMenu = 'B -
background extinction
base
biochemistry
biodiversity
biological species concept
bottleneck
Brongniart, Alexandre
Buckland, William
Buffon, Georges';
}
else if (Letter=='c') {
LeftMenu = 'C -
Chambers, Robert
character
character states
clade
codon
coevolution
common ancestor
convergent evolution
cospeciation
Crick, Francis
currency
Cuvier, Georges ';
}
else if (Letter=='d') {
LeftMenu = 'D -
da Vinci, Leonardo
Darwin, Charles
De Vries, Hugo
deleterious allele
deleterious gene
deletion
descent
development
developmental constraint
directed mutation
DNA
Dobzhansky, Theodosius
Doolittle, W. Ford
Dubois, Eugene';
}
else if (Letter=='e') {
LeftMenu = 'E -
endemic
epithelium
evolution
evolutionary trend
exaptation
existence proof
extant
extinction';
}
else if (Letter=='f') {
LeftMenu = 'F -
Fisher, Ronald
fitness
fossil
Fourier, Joseph
founder effect
frameshift';
}
else if (Letter=='g') {
LeftMenu = 'G -
Galen
gene
gene flow
gene frequency
gene pool
genetic drift
genetic variation
genome
genotype
germ line mutation
Gould, Stephen Jay';
}
else if (Letter=='h') {
LeftMenu = 'H -
Haeckal, Ernst
Haldane, JBS
half-life
Harvey, William
heterochrony
heterozygote advantage
hominid
homologous
homoplasious
Hooke, Robert
Hox genes
Hutton, James
Huxley, Thomas Henry
hybridization
hydrothermal vent
hypothesis';
}
else if (Letter=='i') {
LeftMenu = 'I -
inbreeding
inbreeding depression
incipient species
insertion
intelligent design movement
intermediate forms
inviable
iridium';
}
else if (Letter=='j') {
LeftMenu = 'J -
junk DNA
"just so" story';
}
else if (Letter=='k') {
LeftMenu = 'K -
Lord Kelvin
key adaptation
Kim, Junhyong';
}
else if (Letter=='l') {
LeftMenu = 'L -
Lamarck, Jean Baptiste
lethal
life history strategy
lineage splitting
Linnaean System of Classification
Linnaeus, Carolus
living fossil
locus
“Lucy”
Lyell, Charles';
}
else if (Letter=='m') {
LeftMenu = 'M -
macroevolution
macromutation
Malthus, Thomas
Margulis, Lynn
mass extinction
Mayr, Ernst
Mendel, Gregor
microevolution
module
molecular
molecular clock
monophyletic group
Morgan, Thomas Hunt
morphology
mutation
mutualism';
}
else if (Letter=='n') {
LeftMenu = 'N -
natural selection
neutral theory
Newton, Isaac
node
nucleotide';
}
else if (Letter=='o') {
LeftMenu = 'O -
ontogeny
organic molecule
outbreeding
Owen, Richard';
}
else if (Letter=='p') {
LeftMenu = 'P -
paedomorphosis
Paley, William
parapatric speciation
parsimony
Patterson, Clair
peripatric speciation
phenetic species concept
phenotype
phyletic gradualism
phylogenetic classification
phylogenetic species concept
phylogenetics
phylogeny
ploidy
polytomy
population
population bottleneck
protein
punctuated equilibrium';
}
else if (Letter=='q') {
LeftMenu = 'Q -';
}
else if (Letter=='r') {
LeftMenu = 'R -
radiometric dating
random
rank
ratchet
rate of diversification
rate of extinction
recognition species concept
recombination
Red Queen hypothesis
refugia
regulatory gene
RNA
runaway selection';
}
else if (Letter=='s') {
LeftMenu = 'S -
Sarich, Vincent
Schaaffhausen, Herman
Sedgwick, Adam
segregation
sexual selection
shifting balance theory
shocked quartz
Sibley, Charles
sickle cell anemia
silent mutation
sister taxa
Smith, William
somatic mutations
speciation
species
St. Hilaire, Geoffroy
stasis
Steno, Nicholas
stratigraphy
substitution
sympatric speciation';
}
else if (Letter=='t') {
LeftMenu = 'T -
taxon
tetrapod
transitional forms';
}
else if (Letter=='u') {
LeftMenu = 'U -';
}
else if (Letter=='v') {
LeftMenu = 'V -
Vesalius, Andreas
vestigial structure
von Baer, Karl';
}
else if (Letter=='w') {
LeftMenu = 'W -
Wallace, Alfred Russel
Watson, James
Wegener, Alfred
Wilson, Allan
Woese, Carl
Wright, Sewall';
}
else if (Letter=='x') {
LeftMenu = 'X -';
}
else if (Letter=='y') {
LeftMenu = 'Y -';
}
else if (Letter=='z') {
LeftMenu = 'Z -';
}
return LeftMenu;
}