The ability to reproduce.
bedrock composition
the climate they lived in
the oxidation number, determined by its group on the periodic table.
When there is low gene flow.
Habitat Stability.
Because natural selection only preserves incremental beneficial traits to the organism and many different areas of the organism are undergoing mutation and natural selection at the same time against the backdrop of the immediate environment. If a population of organisms, subject to allele change due to natural selection, is not in a changing environment, or split in a allopatric event, then adaptive change will be very slow, or will not happen at all and selection will winnow those variants and stabilizing selection is taking place. Regression to the mean of phenotype.
Abiotic factor.
The most important factor is the stars mass.
Water and wind are the important weathering factors that form the landscape. Water has the greatest impact.
A plentiful supply of food is the most important factor in determining a place to settle.
A plentiful supply of food is the most important factor in determining a place to settle.
Plenty of food
location
comsuption
location
location
stamina
effective rate