[Solved] Toward the end of the Acheulian period, a technique developed that enabled the toolmaker to produce flake tools of a predetermined size, the ____________ method. A) Mousterian B) Oldowan C) Levalloisian D) none of the above Angiosperms: The traditional name for flowering plants, a very large (more than 300,000 species), diverse phylum of plants that form flowers for sexual reproduction and produce seeds enclosed in fruits; include monocots and eudicots. Gymnosperms: Gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes, distinguished from flowering plants by having naked seeds. Liverworts: A group of non-vascular plants belonging to the division Hepaticophyta, characterized by a liver-like appearance and commonly found in moist, shaded environments. Vascular Tissues: Plant tissues responsible for transporting water, nutrients, and sugars throughout the plant.