All Fossils of Archaic Homo Sapiens and Earlier Homo Erectus

question 32

Multiple Choice

All fossils of archaic Homo sapiens and earlier Homo erectus show

• A) continued increase in skeletal robusticity and tooth size.
• B) expansion of the brain and increased cultural complexity.
• C) a decrease in cranial capacity.
• D) continued decrease in body size.

---

Definitions:

Ethane

A colorless, odorless gas with the formula C2H6, used as a fuel and as a feedstock for the production of chemicals.

Octane

A hydrocarbon with the chemical formula C8H18, commonly used as a reference standard in determining the quality of gasoline fuels.

Propane

A flammable hydrocarbon gas that is a component of natural gas, commonly used as fuel.

Condensed Structural Formula

A method of representing the molecular structure of a chemical compound where bonds and atoms are shown using symbols without depicting the actual bond angles or lengths.