Biology for IGCSE & O level - Variation And Selection (Section 6 - No. 4)
Weeds in the concrete jungle demonstrate that plants can adapt to their environment. The adaptation in the weeds growing in patches of soil around trees involved:
Producing lighter seeds for better dispersal
Producing heavier seeds that tend to fall vertically
Evolving to require less water to grow
Changing their root structure to avoid competition
Explicació
The heavier seeds favored the land occupied by the parent plant, increasing the chances of successful germination and growth.