Journal of Transport and Land Use, Vol. 9, No. 2 (2016), pp. 1-4 (4 pages) Buliung, R. N., R. Mitra, and G. Faulkner. 2009. Active school transportation in the ...

The Paleozoic era's Silurian period saw animals and plants finally emerge on land. But first there was ... to all vascular plants that allowed the transport of water and nutrients.