1. A variety of cultures and societies have formed throughout human history
a Compare and contrast three aspects of a hunter-gatherer society with those of an agricultural
society.
b. Some hunter-gatherer societies shifted to agriculture as animals were domesticated and crop
plants were cultivated. What are two ways this shift could have increased the probability of members
surviving and reproducing in these societies?

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to canadian breeding grounds in the spring. as global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources how are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring? o a. populations will go extinct since the warblers will stop migrating to breeding grounds. b. populations will be unaffected since most species can quickly adapt to effects of climate change. c. populations will increase since warmer temperatures are generally beneficial to survival, d. populations will decline since individuals will be less likely to successfully reproduce, reset next

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone