[BIO201H5] - Final Exam Guide - Ultimate 103 pages long Study Guide!
Document Summary
Soil gradually builds up with organic matter. Shade is provided: old field succession (secondary succession, start with mosaic of field grass and forest trees, takes place in field of agriculture. It will become more homogeneous if left alone (turn into a forest: stage 1. Weeds have period of dormancy seed may have already been in soil and requires bright light to germinate. Seeds remain dormant when the forest provides shade. When forest is cut down, seed have bright light to germinate. Small plants and can be replaced by larger weeds: stage 2. Annual weeds gets shaded out by perennial weeds. Perennial weeds will get shaded out by woody shrubs. Pair of leaves starts at ground level. Plant is above ground for 2-3 months a year, rest of the year it is contracted in storage starch. When plant flowers (after successfully pollinated), they develop fruit.
