Paleontologists State That Homo Ergaster Was Fully Committed to Terrestrial

question 12

Multiple Choice

Paleontologists state that Homo ergaster was fully committed to terrestrial life because

• A) the teeth of Homo ergaster show evidence of meat eating.
• B) sexual dimorphism is reduced in this species.
• C) Homo ergaster had the same body proportions as people who live in tropical savannas today.
• D) their brain size is larger than the brains of other hominins.

---

Definitions:

Piagetian Preoperational Stage

A developmental stage in early childhood (approximately aged 2-7 years) characterized by symbolic thinking, egocentrism, and a lack of logical operations, according to Piaget's theory.

Conservation

In cognitive development, the understanding that an object's or substance's quantity remains the same despite changes in its shape or form.

Appearance-Reality

A cognitive development concept referring to the ability to differentiate between what something appears to be and what it actually is.

Sociocultural Theory

Vygotsky’s theory that individuals acquire culturally relevant ways of thinking through social interactions with members of their culture.