'Late wood' diaporamas de présentation

Plant Tissues

Plant Tissues. Chapter 29. Mount Saint Helens Eruption. Volcano is located in southwestern Washington state In 1980 it erupted, blowing 500 million metric tons of rock and ash outward Ash and lava devastated about 40,500 acres of what had been forest. Recovery.

822 views • 41 slides

FRST 305

403 views • 40 slides

Chapter 29.7

Chapter 29.7. A Closer Look At Wood and Bark. AP Biology Spring 2011. Formation of Bark. As tree ages inner core of xylem continues its outward expansion Resulting pressure is directed toward the stem or root surface Will rupture the cortex and outer part of secondary phloem

331 views • 16 slides