The Fossil "Lucy" Is Most Similar to Modern Chimpanzees with Respect

question 59

Multiple Choice

The fossil "Lucy" is most similar to modern chimpanzees with respect to which of the following?

• A) the ability to walk upright
• B) cranial capacity
• C) amount of body hair
• D) body size

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Definitions:

Neurons

Specialized cells in the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Pons

A part of the brainstem that links the medulla oblongata and the thalamus, playing a crucial role in controlling breathing, communication between different parts of the brain, and sensations such as hearing, taste, and balance.

Activation-synthesis Theory

A theory suggesting that dreams are the result of the cerebral cortex interpreting random signals from the brainstem during REM sleep.

Dreaming

A series of thoughts, images, and sensations occurring in a person's mind during sleep.