Each ANNUAL RING in a tree corresponds to:
AThree years of growth (long-term cycle)
BOne year of secondary growth (spring + autumn wood)
COne month of growth in the season
DJust the time when the tree shed its bark
Answer & Solution
Correct answer: B. One year of secondary growth (spring + autumn wood)
One annual ring = spring wood (early year, lighter, wider vessels) + autumn wood (late year, darker, narrower) of ONE GROWING SEASON = ONE YEAR.
Counting rings gives the tree's age.
Dendrochronology studies climate via rings.
Keep practising Unit 7E: Plant Kingdom & Biological Classification
Browse all Unit 7E: Plant Kingdom & Biological Classification questions for AP Biology, or explore more Biology topics.
Related questions
Match the kingdom to a defining featureNEET · Biology · True or False — Plant KingdomNEET · Biology · Bryophyte or PteridophyteNEET · Biology · Taxonomic HierarchyNEET · Biology · Xylem or PhloemNEET · Biology · Plant Hormone ↔ FunctionNEET · Biology · Monocot or Dicot — AnatomyNEET · Biology · Root Modifications ↔ Example