Systematics Word Scramble
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| Term | Definition |
| homologous | two organisms have the same feature due to a common ancestor |
| Sarcopterygii | lobe fin fishes including lobe fin fishes and tetrapods |
| Actinopterygii | ray fin fishes |
| Most diversification in spiny ray fishes occurs in... | marine environment |
| Most diversification in soft ray fishes occurs in... | freshwater environment |
| Gnathostomata | Jawed fishes |
| Monophyletic | group of organisms contains all descendants of common ancestor indicated by shared derived characters or synapomorphies |
| Character | a trait or attribute in systematics |
| Character state | form of the character feature |
| Taxonomy is.... | classification of organisms |
| Systematics is... | the phylogenetic relationships between organisms |
| Categories | levels of classifications |
| taxa | actual name of the organism |
| Phylogenetic Systematics | parsimony analysis- produces max parsimony trees, developed by Hennig (1966) classification based on natural or monophyletic groups |
| synapomorphies | shared derived characters that help describe differences between groups example; the presence of jaws |
| homoplasy | resemblance in groups that is derived independently convergent evolution a pattern; not an evolutionary process |
Created by:
jcaughron
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