Which of the Following Statements About Taxonomy Is NOT True

question 35

Multiple Choice

Which of the following statements about taxonomy is NOT true?

• A) In cladistics, a common ancestor and all its descendents that share one or more derived traits are placed in a single clade.
• B) Analogous structures are derived from a common ancestral structure to perform the same function.
• C) Biochemical data and the fossil record can be used independently to indicate the length of time since two species diverged from a common ancestor.
• D) Homologous structures are derived from a single structure in the ancestor, although they may be adapted to different uses in the descendent species (e.g., a dog's foreleg and a human's arm).

---

Definitions:

Medial Forebrain Bundle

A neural pathway in the brain involved in the regulation of reward, pleasure, and addiction.

Brainstem Structures

The lower part of the brain that connects the cerebrum with the spinal cord and controls basic life functions such as breathing.

Limbic System

A complex system of nerves and networks in the brain, associated with instincts, moods, and emotions.

Anterior Thalamus

A part of the thalamus located towards the front of the brain, playing a role in relaying sensory information and in the regulation of consciousness and sleep.