Often times, non-human life in an urban ecosystem is more disturbed in a way that changes happen rapidly, such as the soil and plant cover and temperature and water availability
Answer:
Senescence
Explanation:
Chlorophyll degrades during leaf senescence causing the change of colour in autumn leaves.
polyploidy plants are sterile, usually completely seedless, but may have vestiges of seeds (like the kind of bananas we eat do). Polyploidy plants also usually produce much larger plants than their aneuploidy counterparts do. Bigger fruits are more marketable than smaller ones.
Source from: https://answers.yahoo.com/question/index?qid=20100117182433AAx7K1t
