1) The North American Gray Squirrel may bury up to 10,000 acorns each Fall to help it prepare for food shortage in the winter a) external feature b) behavior c) physiology 2) The heat from a forest fire will open the pine cones of a Jack Pine causing the tree to release its seeds to be spread by wind or gravity a) external feature b) behavior c) physiology 3) A monarch butterfly may migrate 3000 miles from Canada to a specific forest in Mexico every year to overwinter in warmer climates. a) external feature b) behavior c) physiology 4) A harmless viceroy butterfly has the same colors and patterns of a poisonous monarch butterfy so predators won't eat it. a) external feature b) behavior c) physiology 5) The awful smell of a skunk spray can last 2-3 weeks on a predator! a) external feature b) behavior c) physiolgy 6) A Beetroot plant stores food in a bulb underground. a) external feature b) behavior c) physiology 7) The acacia tree has painful thorns to prevent herbivores like giraffes from grazing on its leaves. a) external feature b) behavior c) physiology 8) Polar bears have learned that garbage bins outside the dwellings of research scientists is a good source for food. a) external feature b) behavior c) physiology

External Features, Behaviors or Physiology?

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