How did the last ice age affect human migration?
he answers are...
1. A
2. Complex language, homo sapiens
3. B, D, F
The last ice age, which occurred around 11,700 to 17,500 years ago, had a significant impact on human migration. Here are a few ways it affected human populations:
1. Land Bridges: Large ice sheets and glaciers caused sea levels to drop significantly, creating land bridges between continents. For example, during the last ice age, a land bridge called Beringia emerged between Siberia and Alaska, providing a route for humans to migrate from Asia to North America.
2. Migration to warmer areas: As colder regions were covered in ice, early humans were forced to migrate to warmer areas that were not affected by glaciation. This led to the movement of populations to places like the Mediterranean region, the Middle East, and parts of Africa.
3. Adaptation to new environments: Humans had to adapt to new environments, habitats, and ecological conditions during the ice age. This likely influenced the development of new technologies, such as clothing, shelter construction, and hunting techniques, to survive in cold climates.
4. Expansion and contraction of populations: As glaciers advanced and retreated, human populations expanded and contracted accordingly. During warmer periods, populations could expand into newly exposed areas, while during colder periods, populations may have been confined to refugia, more habitable regions with milder climates.
5. Evolution and genetic diversification: The ice age also influenced human evolution and genetic diversification. Isolated populations in different regions evolved distinct genetic characteristics due to limited gene flow. For example, the different genetic variations seen in modern human populations can be traced back to this period.
Overall, the last ice age had a profound impact on human migration patterns, shaping the distribution, adaptation, and genetic diversity of human populations around the world.
In the struggle to survive, gave a great advantage because they could then organize a hunt and pass knowledge on to their young.
In the struggle to survive, the ability of early humans to organize hunts and pass down knowledge indeed provided a significant advantage. Here's how it played a role:
1. Hunting skills: Early humans developed hunting skills and strategies to secure food resources. Hunting in groups allowed them to effectively take down larger and more dangerous prey, which would have been difficult or impossible to tackle individually. Cooperation in hunting increased the chances of survival and ensured a steady food supply.
2. Knowledge transfer: The ability to pass knowledge from one generation to the next through teaching and social learning was crucial. Older, more experienced hunters could pass down their knowledge, including hunting techniques, animal behavior patterns, and tracking skills, to younger individuals. This transmission of knowledge enhanced the efficiency and success of future hunting expeditions.
3. Social organization and division of labor: Successful hunting required coordination and division of labor within the group. Some members may have specialized in tracking, others in making tools or setting traps, while others focused on driving or ambushing prey. This division of labor allowed early humans to maximize their hunting effectiveness and overall survival.
4. Cultural evolution: The accumulation of knowledge and skills over generations led to cultural evolution. Innovative hunting techniques, tool development, and advancement in hunting strategies could be passed down and refined. This cultural adaption to the environment gave early humans an adaptive advantage over other species and allowed them to thrive.
Overall, the ability to organize hunts and pass knowledge on to their young played a critical role in early human survival and development. It allowed them to effectively acquire food resources, adapt to different environments, and pass down valuable skills and strategies, ultimately contributing to the success and expansion of our species.
Which adaptations did early humans make during the last ice age in order to survive varied environments? Select the three correct answers.
(1 point)
Responses
created religions to offer sacrifices to gods
created religions to offer sacrifices to gods
worked in larger networks of communities
worked in larger networks of communities
planted crops to have an available supply of food
planted crops to have an available supply of food
made stone tools such as hand axes
made stone tools such as hand axes
tamed large animals to do work for them
tamed large animals to do work for them
used fire for heat, protection, and cooking
used fire for heat, protection, and cooking
The three correct answers are:
1. Worked in larger networks of communities: During the last ice age, early humans formed larger networks and communities to better cope with the challenges of survival. Collaboration and cooperation within these networks allowed for sharing of resources, knowledge, and defense against larger predators.
2. Made stone tools such as hand axes: Early humans developed and used stone tools, including hand axes, to assist in various tasks such as hunting, butchering game, and woodworking. These tools were essential for survival and adaptation to different environments.
3. Used fire for heat, protection, and cooking: The control and use of fire were crucial adaptations during the ice age. Fire provided warmth, protection from predators, and enabled early humans to cook food. Cooking increased the caloric intake and nutritional value of food, making it easier to digest and improving overall survival chances.