AP BIOLOGY

Detailed explanation-1: -Tree rings are the informers of a tree’s history. They hold a wealth of information about not only a tree’s past but also that of the ecosystem in which it lives. Environmental conditions of the past can be remodeled by studying the tree rings of the species of trees growing in a particular region.

Detailed explanation-2: -These rings can tell us how old the tree is, and what the weather was like during each year of the tree’s life. The light-colored rings represent wood that grew in the spring and early summer, while the dark rings represent wood that grew in the late summer and fall.

Detailed explanation-3: -Dendrochronology-The Study of Tree Rings.

Detailed explanation-4: -Dendroclimatology can be defined simply as ‘the science that uses tree rings to study present climate and reconstruct past climate’ (Grissino-Meyer, n.d.) and during the past 30 years has become a major tool in the reconstruction of climates of the past millennium in many areas of the world.

Detailed explanation-5: -Each year, the tree forms new cells, arranged in concentric circles called annual rings or annual growth rings. These annual rings show the amount of wood produced during one growing season. In Canada and the North United States, the growing season begins in the spring.