The redwood groves in Northern California are one of America's greatest natural resources. Redwoods can live more than 2,000 years and grow taller than 350 feet. When tourism became popular in the late 1800s, large tunnels were cut through the center of several of these giant trees to allow wagons to pass through (and to attract tourists to the location). Even today, visitors wait in line to be photographed driving their cars through a tunnel. When the groves were converted into national parks, the tunneling was discontinued, but several tunneled trees are still alive.
-What is the correct sequence of tissues a car would pass as it drives through the tree tunnel (starting from the outer surface of the tree and passing through the central core)?

Question

Quizplus · Accepted Answer

The correct sequence reflects the structure of a mature tree's stem from the outermost layer to the inner core. The outer layer is the cork (part of the bark), followed by the cork cambium (a lateral meristem responsible for producing the cork), secondary phloem (part of the inner bark that transports nutrients), vascular cambium (another lateral meristem that produces secondary xylem and phloem), sapwood (the outer layers of wood that transport water and minerals), and finally, heartwood (the central, non-living part of the tree trunk).

The Redwood Groves in Northern California Are One of America's