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 Andrew animals become birds Bottom branches breathe called carbon dioxide carries water carry catkins causes cells chlorophyll chloroplast collect connect dead drawing shows English oak Quercus Europe evolved fall feet female flower fibers fire flocks fungi gall germinate gives grain green ground grow growth heat helping hide holes housing important inner bark insects inside jays keep land layer Left living things male flowers matter mesophyll cells meters million Mistletoe 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 seed leaves seedling shoot side soil species spreading sprout squirrels Stigmas strength strong sugar sunlight takes place Tannic acids thick thin tiny tips tropical tube turn tyloses vessels wall wasps water and minerals water-carrying winter Wisconsin wood woody young