Endosteum- a thin, vascular membrane:)
A cross-sectional view of a log shows a concentric pattern. Which part of the stem gives rise to this pattern?
B. Xylem
as it contribute for most of a tree's growth in diameter.
<span>Rapid evolutionary change more likely to occur in small populations because of a small gene pool. Small population generally equals small gene pool.
Hope this helps:)</span>