Explorations Chapter 10 Hominin Evolution

Question 1

Acheulean

Answer 1

Tool industry characterized by teardrop-shaped stone handaxes flaked on both sides.

Question 2

Developmental plasticity

Answer 2

The capability of an organism to modify its phenotype during development in response to environmental cues.

Question 3

Human behavioral ecology

Answer 3

The study of human behavior from an evolutionary and ecological perspective

Question 4

Life history

Answer 4

The broad pattern of a species’ life cycle, including development, reproduction, and longevity

Question 5

Mosaic evolution

Answer 5

Different characteristics evolve at different rates and appear at different stages

Question 6

Occipital torus

Answer 6

A ridge on the occipital bone in the back of the skull

Question 7

Oldowan

Answer 7

Earliest stone-tool industry consisting of simple flakes and choppers

Question 8

Perikymata

Answer 8

Microscopic ridges on the surface of tooth enamel that serve as markers of tooth developmental

Question 9

Pleistocene

Answer 9

Geological epoch dating from 2.6 million years ago to about 11,000 years ago

Question 10

Pliocene

Answer 10

Geological epoch dating from 5.3 to 2.6 million years ago

Question 11

Prognathism

Answer 11

Condition where the lower face and jaw protrude forward from a vertical plane

Question 12

Sagittal keel

Answer 12

A thickened area along the top of the skull