ACTIVITY RESUL
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A
Otzi wore clothes and carried a bow and arrows
People are leaming from Otzi the Iceman's body
Scientists think Otzt was about 46 years old when he died
Otzi's body was well preserved in ice when it was found

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?