The Paleoanthropologists Who Discovered the Fossils They Called Homo Naledi

question 7

Multiple Choice

The paleoanthropologists who discovered the fossils they called Homo naledi justified classifying the fossils as a variety of early Homo for which reason?

• A) Their large cranial capacity
• B) Stone tools found in association with the fossils
• C) fossils and other early Homo fossils
• D) Their firm dating at 1 million years of age

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Definitions:

Neurotransmitter

Chemical messengers that transmit signals across a chemical synapse, from one neuron to another target neuron.

Receptor

A protein molecule that receives and responds to chemical signals, such as hormones or neurotransmitters, affecting cell function.

Axon

A slim, elongated extension of a neuron that generally transmits electrical signals away from the cell body of the nerve cell.

Soma

In biology, the body of an organism as distinct from its reproductive cells; in psychology, it represents the body as perceived from within.