the way in which cells multiply to form new cells.
preserved remains or traces of organisms that lived long ago.
substance used to test for the presence of starch. It is a mixture of elemental iodine,...
meristem that produces a layer of bark on the outer surface of a plant.
all the ecosystems on the Earth, all the species within these ecosystems and the genetic...
small, non-pigmented plastids that occur in roots and non-photosynthetic tissues of plants. They...
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