Frage 103

A bee pushes deep into a flower and feeds on a sugary liquid it finds there. Which structures make that liquid, and what is it for?

The ovules make it, and it feeds the developing seed
The anthers make it, and it glues pollen onto the insect
The nectaries make it, and it rewards the visiting insectRichtige Antwort
The stigma makes it, and it dissolves the pollen that arrives

Erklärung

The sugary liquid is made by small glands set inside the flower and exists to draw animals in, and it is on the way to that reward that a visitor brushes past the pollen. Nothing about it feeds a seed, because a developing seed is supplied from within the plant rather than by a liquid that is deliberately given away.

Erklärung

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