With the help of beautifully detailed illustrations and photographs, this book leads us on an intimate tour of the oak tree s dense root system, its lush canopy, the trunk s complex circulatory system, its reproductive processes, and its unique and densely-packed seed the acorn. We learn the importance of the oak to combat air pollution, and supply building materials for people, as well as provide a food supply for many woodland animals.
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acorns America Andrew animals become birds branches breathe called carbon dioxide carries water carry catkins causes cells chlorophyll chloroplast connect dead drawing shows English oak Quercus Europe evolved fall female flower fibers fire fungi gall germinate gives green ground grow growth guard Heartwood heat helping hide housing important inner bark insects inside jays keep land layer Left living things male flowers matter meters million mushrooms NATURE North American nutrients oak leaf oak Quercus robur oak tree oak's trunk ovules oxygen passenger pigeons photosynthesis plant pollen Pore produced roots sapwood scrub oak seed leaves seedling shoot side roots soil species spreading sprout squirrels Stigmas strength strong sugar sunlight takes place Tannic acids thick tiny tropical tube Turkey turn tyloses vascular cambium vessels wasps water and minerals water-carrying Wisconsin wood woody young