The arrangement of leaves on an axis or stem is called
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The study of Cells is also known as
Non-green plants lack which of the following?
Name the international treaty designed to protect the ozone layer from CFCs.
Name the scientist who proposed the cell theory
The Ozone layer is present in which atmospheric layer?
Bulb is a modification of which part of a plant?
June 21 marks the winter solstice in the _________ Hemisphere.