Question 2 (Multiple Choice Worth 2 points)
(05.03 MC)
Over millions of years, hominid species learned to use and create tools that became more complex over time. They eventually harnessed fire for light, heat, and cooking food. Which of the following best explains what effect this had on hominid evolution?
A. Hominid front limbs became longer in proportion to the rest of their body.
B. Hominid brain size decreased as life became easier with the advent of tools.
C. Hominid tooth size decreased as they relied on cooked foods and tools for cutting.
D. Hominid hands developed smaller thumbs as they developed finer tools.
Question 3 (Multiple Choice Worth 2 points)
(04.05 MC)
Answer (1)
The advent of tool use and fire in hominids primarily led to a decrease in tooth size due to the reliance on cooked foods. This dietary shift reduced the need for large teeth used for chewing tough foods. The cognitive demands of tool-making may have also influenced brain development positively, rather than causing a decrease in brain size. ;
