This is a preview. Log in through your library . Abstract Background and Aims Organisms often balance among reproduction, growth and survival. When these processes are in competition, selection may ...

Did you give or receive flowers for St. Valentine’s Day? Though not a flower, your commercial floral arrangement may have included our local native sword fern. Ferns were considered magic for a long ...

When you see potted ferns adorning a terrace or wild ferns gracing a woodland path, it's hard to imagine that they represent some of the world's most ancient plants. Fossil findings indicate that ...

Imagine a photograph of your great-grandparents, grandparents and parents side by side. You’d see a resemblance, but each generation would look distinct from its predecessors. This is the process of ...