Biology for IGCSE & O level - Variation And Selection (Section 1 - No. 3)
In the context of the weeds in the concrete jungle, what is the environmental pressure that favors the evolution of heavier seeds?
Increased rainfall
Limited soil availability in the parent plant's vicinity
Increased wind speed
A lack of pollinators
Explicació
Limited soil availability in the same area forces the seeds to stay in the area of the parent plant.