Which of the Following Is/are Evidence of Robust Australopiths' Adaptation

question 15

Multiple Choice

Which of the following is/are evidence of robust australopiths' adaptation to eating hard-shelled seeds and grasses?

• A) the presence of very large molars and a sagittal crest on the top of the skull
• B) massive fossilized temporalis muscles
• C) fine finger bones and a large mandible
• D) a small but flexible masseter muscle and an enlarged occipital bun
• E) bipedalism, providing the mobility necessary to gather food in open grasslands

---

Definitions:

Invariant Relationship

describes a consistent and unchanging association between variables regardless of different conditions or operations.

Stimuli

External factors or events that provoke a physiological or psychological response.

Linear Perspective

A cue for distance based on the fact that parallel lines seem to converge as they get farther away from the viewer.

Texture Gradients

A depth cue in visual perception, where the gradual change in appearance of a texture signals increasing distance from the observer.