Which of the Following Was Probably the Least Important Factor

question 56

Multiple Choice

Which of the following was probably the least important factor in bringing about the Cambrian explosion?

• A) the emergence of predator-prey relationships among animals
• B) the accumulation of diverse adaptations, such as shells and different modes of locomotion
• C) the origin of Hox genes and other genetic changes affecting the regulation of developmental genes
• D) the movement of animals onto land
• E) the accumulation of sufficient atmospheric oxygen to support the more active metabolism of mobile animals

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Definitions:

Retrograde Amnesia

A memory disorder characterized by an inability to recall events or information that were acquired before the onset of the amnesia.

Working Memory

A cognitive system responsible for temporarily holding information available for processing, important for reasoning, learning, and comprehension.

Sensory Modality

Refers to the different ways in which sensory information is processed by the human body, including vision, hearing, touch, taste, and smell.

Sensory Memories

The shortest-term element of memory, which stores impressions of sensory information after the original stimuli have ended.