Biology for IGCSE & O level - Variation And Selection (Section 4 - No. 21)
In the context of weed seed dispersal, what is the selective advantage conferred by having heavier seeds?
They are carried further by the wind.
They are less likely to land in the same patch of ground as the parent.
They are more likely to land on concrete.
They have a greater chance of successful germination and growth.
Explanation
Heavier seeds are more likely to land in the same area as the parent plant, which, in a fragmented environment, increases their chances of successful germination and growth.
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