Question

What human characteristics did Ardipithecus ramidus (Ardi) have?

A) Bipedalism
B) Opposable thumbs
C) Large brain
D) Tool use

Answer 1

Ardipithecus ramidus (Ardi) had the human characteristics of bipedalism, opposable thumbs, a relatively large brain, and the potential for tool use.

Step-by-step explanation:

Ardipithecus ramidus, also known as Ardi, had the following human characteristics:

1. Bipedalism: Based on the forward position of the foramen magnum and the small upper arm bones, it can be concluded that Ardi was bipedal.
2. Opposable thumbs: Ardi possessed an opposable big toe, indicating the presence of opposable thumbs.
3. Large brain: Ardi had a relatively large brain compared to other primates, although not as large as modern humans.
4. Tool use: While the direct evidence of tool use is not present for Ardi, later hominin species like Homo habilis used tools, indicating a potential for tool use in Ardi's lineage.