population genetics and evolution 
abundance of alleles
gene pool
factor for change in gene pool
mutation
accidents
artificial selection
natural selection
factor not part of natural selection
purpose
intension
planning
voluntary decision making
natural selection does not operate
multiple selection process
speciation
phyletic speciation
divergent speciation
gene flow
pollen transfer
seed dispersal
reproductively isolated
biological barriers
a biological barrier
allopatric
geographic speciation
sympatric
prevents gene flow
prezygotic isolation mechanism
post zygotic isolation
hybrid sterility
hybrid inviability
adaptive radiation
founder individual
genetic drift
convergent evolution
evolutionary convergence
evolution and origin of life
hypothesis
chemosynthesis
model origin of life
right inorganic chemical
energy source
great deal of time
exchange of oxygen
condition of earth before life
chemical present in atmosphere
energy sources
second atmosphere
reducing atmosphere
time available of life origin
chemical produced chemosynthetically
formation of polymer
aggregation and organizations
early metabolism
oxygen
oxidising atmosphere
presence of life
chemosynthetic theory
inorganic to bacteria
no absolute demarcation
uv light
ozone
population concept of species
type of concepts of species
gene pool
sexual reproduction
no relative abundance
mutation bring new alleles
do not affect allele frequency
fitness of population
artificial increases plant fitness
natural selection
factor not part of natural selection
purpose
intension
planning
voluntary decision making
vegetative propgation #
cross link description pollen transfer and vegetative propagation are both the ways plants reproduce through
determine traits in next generations
determines traits passage #
cross link description artificial and natural selection determine the traits that pass from one generation to next generation
energy sources #
cross link description energy was present in atmosphere before the origin of first life or after the origin of first life in some forms such as light energy, chemical energy