1. Identify the structural regions on the illustration from theprevious question. Tree Section Identification: Clues for treespecies identification:

Oak Bark- Light to dark grey and scaly Sapwood- Creamy white tolight brown Heartwood- Grayish to reddish brown Special Features-Distinct growth rings, light colored wood rays

Basswood Bark- Grayish red with shallow features Sapwood-Whitish to cream brown, narrow dark summerwood and wide whitespringwood Heartwood- Similar to sapwood Special Features- Growthrings evident, soft textured wood

Black Walnut Bark- Reddish brown with grooves Sapwood- Creamywhite Heartwood- Chocolate brown Special Features- Growth ringsless apparent, narrow sapwood region, hard textured wood

American (White) Ash Bark- Grayish brown with grooves Sapwood-Light colored, narrow dark summerwood and wide white springwoodHeartwood- Brown to reddish brown with possible red tinge SpecialFeatures- Distinct growth rings, narrow sapwood region, hardtextured wood

White Pine Bark- Smooth, greenish gray on young trees Sapwood-Light cream, narrow dark summerwood and wide white springwoodHeartwood- Cream colored tinged with red Special Features- growthrings evident, soft textured wood

Red Pine Bark- Reddish brown Sapwood- White to light yellow,narrow dark summerwood and wide white springwood Heartwood- Red toreddish brown Special Features- Growth rings evident, soft texturedwood

2. What would suggest variations in the amount of moistureavailable during a good or bad year for the life of the tree?

3. What does it mean to \"girdle\" a tree trunk and how does itaffect the tree?

4. How would the bark of a younger tree appear as compared withthat of an older tree

5. What would suggest variations in the amount of moistureavailable during the life of the tree? Explain.