Growth rings are foemed by the activity of

Growth rings are formed by the activity of

Growth rings are formed by the activity of (a) Extrasteral cambium (b) Intrasteler cambium (c) Interstelar cambium (d) Both b and c

Growth rings are produced by the activity of_________

Growth rings are formed due to activity of

Growth rings are.formed due to activity of

Growth rings are formed due to the activity of -

growth/annual rings are formed by the activity of

growth/annual rings are formed by the activity of

growth/annual rings are formed by the activity of