
preventing autom mrk Carl Linnaeus Today's classification hierarchy was developed by species It is based on...
GENETICS
(#21:: included is the paragraph discussing figure 25.2b &
figure 25.2b, and question #21)
Humans are not unique in their extensive variation (Figure 25.2a); almost all organisms exhibit phenotypic vari- ation. For instance, lady beetles are highly variable in their spotting patterns (Figure 25.2b), mice vary in color, snails have different numbers of stripes on their shells, and plants vary in their susceptibility to pests. Much of this phenotypic variation is hereditary. Recognition of the extent of pheno- typic...