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three The First Forests
four Deciduous Forest
9 other sections not shown
American forest ancient animals atoms auxin bacteria bark birch birds bogs buds bushes cambium Canadian shield canoe canopy Canyon carbon cellulose chemical chlorophyll cliffs Coast Forest colors cones conifer conifer forests continent cypress dark deciduous forest earth elements energy feet ferns flowers forest floor forest soil fungi fungus glaciers granite green ground grow hardwood humus Ice Age inch Indians insects lakes land layer leaf carpet leaves lichen light lignin living cells Mackenzie maple meiofauna microscopic miles million minerals molecule needles North Woods ocean oxygen palisade cells Peace River phloem pine plants ponds protoplasm Protura redwood rock sediments seeds sequoia snow species spring springtails sprout spruce streams sugar sunlight surface swamp tall thousand threads tiny tips tree trunks twigs valley whitebark pine wild wilderness Wilderness Act willow winds winter wood cells