Trees at sea do not have annual rings because
Soil is sandy
There is climatic variation
There is no marked climatic variation
There is enough moisture in the atmosphere
Amphicribal or hadrocentric vascular bundles are present in the stem of
Cork tissue arises from
Palm is a monocotyledonous plant, yet it increases in girth. Why and how ?
In which of the following, there is no differentiation of bark, sap wood and heart wood