Test on Hominin Behavioral Ecology and Stone Tools

Question 1: Conclusive evidence of cut-marked bones dates back to approximately 3.4 million years ago.

A. Ano

B. Ne

Explanation: The study materials state that conclusive evidence of cut-marked bones is from 2.5 million years ago, while claims for similar butchery around 3.4 million years ago are considered controversial, not conclusive.

Question 2: According to the study materials, what is significant about the Oldowan artifacts discovered at Ledi-Geraru, Ethiopia?

A. They represent the earliest known Oldowan artifacts at over 2.58 million years ago.

B. They are associated with the earliest known evidence of Homo at 2.8 million years ago from the same site.

C. They are controversial claims pushing tool use to 3.3 million years ago.

D. They were found with clear evidence of pre-Oldowan, unflaked tools.

Explanation: The study materials state: 'Earliest known Oldowan artifacts at >2.58 Ma from Ledi-Geraru, Ethiopia, highlight early technological diversity.' This supports option 0. Additionally, the materials mention 'Early Homo at 2.8 Ma from Ledi-Geraru, Afar, Ethiopia,' indicating the presence of early Homo in the same location around a similar time frame, making option 1 also correct in the context of significance related to Ledi-Geraru. Option 2 refers to controversial claims for much older tools, but not specifically about Ledi-Geraru Oldowan artifacts. Option 3 is incorrect as the materials highlight a lack of robust methods to recognize pre-Oldowan unflaked tools and do not connect them to Ledi-Geraru Oldowan findings.

Question 3: Impact marks on bones are a feature associated with the Klasies River Main site.

A. Ano

B. Ne

Explanation: The study materials explicitly state 'Klasies River Main (<110 ka) Impact marks on bones', indicating their association with the site.

Question 4: The shift from scavenging to systematic hunting in early humans was definitively caused by environmental changes and neurological reconfiguration.

A. Ano

B. Ne

Explanation: The study materials state that this shift 'May have started suddenly as a response to environmental changes (e.g., climatic shift ~1.9 - 1.7 Ma) and/or neurological reconfiguration', indicating a possibility rather than a definitive cause.

Question 5: According to the study materials, what types of evidence are associated with the hafted backed pieces discovered at Sibhudu, KZN?

A. Adhesive

B. Residue

C. Large cutting tools

D. Impact marks on bones

Explanation: The study materials explicitly state 'Sibhudu, KZN (hafted backed pieces 65 ka)' are associated with 'adhesive' and 'residue'.