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Zoology Ch. 7
Vocabulary for Zoology Ch. 7
Question | Answer |
---|---|
Attributes of species that are old and have been retained from a common ancestor | Ancestral Characters |
Actively moving organisms that have definite anterior and posterior ends | Bilateral Symmetry |
a subset of organisms in a phylogenetic group that share a certain synapomorphy | Clade |
Using cladograms to show relationships in evolution | Cladistics |
Diagram depicting the evolutionary history of taxa | Cladogram |
A level of classification between phylum and order | Class |
A fluid filled body cavity lined by mesoderm | Coelom |
Character that has arisen since common ancestry with an outgroup | Derived Characters |
A sub-kingdom level of classification that includes bilateral animals in which anus form from the blastopore | Deuterostomia |
The broadest taxonomic grouping | Domain |
A sub-kingdom level of classification that includes animals like arthropods and nematodes | Ecdysozoa |
The slowness of change in a characteristic of an animal over time | Evolutionary Conservation |
The study of the classification of and evolutionary relationship among animals | Evolutionary Systematics |
The level of classification between order and genus | Family |
The level of classification between species and family | Genus |
The level of classification above phylum | Kingdom |
A sub-kingdom level of classification that includes animals like annelids and molluscs | Lophotrochozoa |
A group of organisms descended from a single ancestor | Monophyletic Group |
The study of naming of organisms in the fashion that reflects their evolutionary relationships | Nomenclature |
The level of classification between class and family | Order |
The level of classification between Kingdom and Class | Phylum |
A form of symmetry in which any plane passing through the oralaboral axis divides AN organism in to mirror images | Radial Symmetry |
A group of similar organisms that can interbreed. | Species |
The study of the kinds and diversity of organisms and of the evolutionary relationships amoung them. | Systematics |