Evaluate the following statements about the classification systems.
a. Artificial systems separated closely related species because they were based on a few characteristics.
b. Natural classification systems are based on natural affinities among organisms.
c. Phylogenetic systems assume that organisms belonging to the same taxa have a common ancestor.
d. Numerical taxonomy is based on all observable characteristics, with each character given equal importance.
e. Chemotaxonomy uses cytological information like chromosome number to resolve confusions.
f. Cytotaxonomy uses the chemical constituents of the plant.
g. Bentham and Hooker gave a phylogenetic classification system for flowering plants.
