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This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..
The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..
Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..