The Accompanying Figure Shows the Results of Jackson and Cheetham's

question 4

Multiple Choice

The accompanying figure shows the results of Jackson and Cheetham's studies on fossil and living cheilostome bryozoans.What can you infer from these diagrams?

• A) Species of bryozoan have tended to persist with very little morphological change.
• B) Bryozoans have unusually low genetic diversity.
• C) Bryozoans predominantly evolve by phyletic transformation, or anagenesis.
• D) Bryozoans have suffered heavily from extinction events on islands.
• E) It is hard to define bryozoan species because of the presence of so many intermediate forms.

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Definitions:

Semantic Memory

A type of long-term memory involving the capacity to recall words, concepts, or numbers, which is essential for the understanding of language and ideas.

Episodic Memory

Episodic memory enables individuals to recall personal experiences and specific events, including the context and the associated emotions.

Cerebellum

Part of the brain that plays important roles in motor control, and it may also be involved in some cognitive functions such as attention and language.

Phonological Loops

A component of the working memory model that deals with auditory information processing and verbal information storage.