Ecosystem and succession - How do the biotic and abiotic components change the equilibrium of the ecosystems?
Problems of Land Plants, Telome Theory, and Rhynia - There are actually three questions here, all dealing with Rhynia (Rhynia is known by two names, the diploid life cycle "Rhynia major", and the haploid life cycle "Rhynia gwynne-vaughanii"). I thought ...
Questions about plants - 1. If a girl carved her initials in the trunk of a maple tree at a point five feet above the ground twenty years ago, and the tree grew at a rate of one foot per year, where can she expect to find her ...