Examine a few flowers of any cucurbit plant and try to identify the staminate and pistillate flowers. Do you know any other plant that bears unisexual flowers?
Cucurbits are unisexual plants. The staminate or male flowers are bright, yellow coloured. The staminate flowers bear bright, yellow coloured petals bearing stamens. Whereas, the pistillate flowers have pistil. Other examples of unisexual flowers are papaya, cucumber, etc.
Why are offspring of oviparous animals at a greater risk as compared to offspring of viviparous animals?
Why do algae and fungi shift to sexual mode of reproduction just before the onset of adverse conditions?