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Full list of words from this list:

words only definitions & notes
  1. hominid
    a member of a family of primate mammals that includes humans
    The biological evolution of early hominids to human beings (Homo sapiens) was a four-million-year process. (1.1.A)
  2. bipedalism
    the attribute of having or walking on two feet
    Two of the most notable physical changes were the development of bipedalism and the formation of a large and complex brain. (1.1.A)
  3. adaptation
    the process of adjusting or conforming to new conditions
    This biological evolution around 200,000 BCE was a physical adaptation to changing environmental conditions across a number of ice ages. (1.1.A)
  4. initiate
    set in motion, start an event or prepare the way for
    As the human brain developed, humans initiated their own adaptations and began to overcome environmental challenges through the creation of tools. (1.1.A)
  5. manipulate
    control or influence skillfully, usually to one's advantage
    Chipped and flaked stone tools—including hammers, scrapers, and axes—were developed to shape and manipulate the environment, assist in foraging and hunting, and enhance food security. (1.1.A)
  6. forage
    collect or look around for, as food
    Chipped and flaked stone tools—including hammers, scrapers, and axes—were developed to shape and manipulate the environment, assist in foraging and hunting, and enhance food security. (1.1.A)
  7. sophisticated
    complex or intricate
    Fires were used to cook and preserve food, and fire enabled early humans to make more sophisticated tools, such as larger, more precisely flaked axes. (1.1.A)
  8. innovation
    a creation resulting from study and experimentation
    Spoken and symbolic language made it possible to transmit knowledge within and between communities, and new knowledge promoted rapid innovations that improved hunting and gathering. (1.1.B)
  9. demographic
    of or relating to the characteristics of human populations
    The demographic expansion and migration of early humans furthered the spread of common technologies and cultural practices. (1.1.B)
  10. barter
    exchange goods without involving money
    Regional networks for bartering food, tools, and exotic decorative items became increasingly complex. (1.1.B)
  11. communal
    for or by a group rather than individuals
    Through technology and communal effort, early humans successfully adapted to a variety of habitats. (1.1.C)
  12. crucial
    of extreme importance; vital to the resolution of a crisis
    The use and control of fire was crucial to human survival in cold climates, while new tools and social cooperation permitted survival in warmer and drier climates. (1.1.C)
  13. insecurity
    the state of being subject to danger or injury
    Human migration was associated with population growth, which was both a consequence of food security and the cause of food insecurity. (1.1.C)
  14. migration
    the movement of persons from one locality to another
    Human migration, in conjunction with new hunting technologies such as the spear and the bow and arrow, initiated a wave of extinctions among the mammal species in some areas. (1.1.C)
  15. extensive
    large in spatial extent or range or scope or quantity
    The extensive use of fire for foraging and hunting impacted the physical and natural environment as well as the atmosphere. (1.1.C)
Created on Thu Jul 09 10:05:20 EDT 2020 (updated Thu Jul 09 12:35:04 EDT 2020)

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