Final answer:
Simple implements for cutting hair in prehistoric times included sharp stones, Acheulean hand-axes, and Mousterian flake tools. These tools evolved from the Oldowan tools to the more advanced Acheulean and Mousterian designs, which offered increased efficiency and specialization for various tasks.
Step-by-step explanation:
Archaeological studies have shown that simple implements were made to cut hair using sharp edges of stones, Acheulean hand-axes, and Mousterian tools.
Evolution of Stone Tools
Our ancestors devised various methods throughout the prehistoric ages to create tools. These methods evolved from simply smashing rocks to create Oldowan tools roughly 2.6 million years ago by Homo habilis, which were utilized for cutting, scraping, and chopping, to the more sophisticated Acheulean tools about 1.7 million years ago. Acheulean tools were teardrop-shaped, and far sharper and thinner than their predecessors, making them far more efficient for their intended purposes.
Further advancement in stone tool technology led to the advent of Mousterian tools as recently as about 250,000 years ago. These tools were created from stone flakes that were themselves used as implements, such as small knives or spearheads. They offered more specialized applications, including cutting meat and scraping leather.