Over millions of years, hominid species learned to use and create tools that became more complex over time. they eventually shaped stone into knives used for cutting, and they harnessed fire for light, heat, and cooking food. which of the following best explains what effect this had on hominid evolution?

a. hominid brain size decreased as life became easier with the advent of tools.
b. hominid hands developed smaller thumbs as they developed finer tools.
c. hominid tooth size decreased as they relied on cooked foods and tools for cutting.
d. hominid front limbs became longer in proportion to the rest of their body.

Put these events in the correct order #1-4. cause: world war 1 caused heavy casualties and property damage throughout europe. many people barely had enough food to eat or coal to stay warm. what happened next? question 1 options: communism soon spread to many small countries near russia, and eventually spread to cuba, china, and vietnam. led by vladimir lenin, a group called the bolshevik party gained the support of the people and overthrew russia’s monarchy, killing czar nicholas ii and his family. russia, now led by lenin, became the first communist nation in history. russian citizens, who were starving and poor, became angry at the ruling class who held all of the nation’s wealth. 1 2 3 4