Final answer:
The invention of the spear thrower and the bow and arrow allowed prehistoric humans to improve their hunting abilities by increasing the speed, range, and accuracy of their attacks.
Step-by-step explanation:
The invention of the spear thrower and the bow and arrow had a significant impact on hunting for prehistoric humans. These innovations allowed hunters to increase the speed, range, and accuracy of their attacks on animals, providing them with an advantage in capturing their prey.
With the spear thrower, also known as the atlatl, hunters were able to propel the spear at a greater distance and with more force, enabling them to take down larger and faster animals.