According to the Text, the Development of Classification Systems Such

question 112

Multiple Choice

According to the text, the development of classification systems such as the DSM was largely based upon

• A) questionnaires.
• B) experiments.
• C) correlational studies.
• D) case studies.
• E) quasi-experiments.

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Definitions:

Microvilli

Minute projections of the plasma membrane that increase the surface area of the cell; found mainly in cells concerned with absorption or secretion, such as those lining the intestine or the kidney tubules.

Choanoflagellate

Single-celled organisms that are considered to be the closest living relatives of animals, characterized by a flagellum surrounded by a collar of microvilli.

Rhizaria

A supergroup of mainly unicellular eukaryotes, characterized by their amoeboid movement mechanism and often elaborate shells.

Clades

Groups in a phylogenetic tree that include a single ancestor and all its descendants, representing monophyletic branches.