NEET Biology question
Study the following pairs and select the correct pair of answers in which the former represents the set of characters present in poinsettia and the latter in the pair represents the set of characters present in casuarina. I. Modified aerial stem – Unisexual flowers – Chalazal entry of pollen tube II. Flowers achlamydeous – Pedicels of all the flowers are of same Length – Presence of false whorl III. Cohesion of Bracts forming a cup – Centrifugal opening of flowers – Male flowers many IV. Flower Formation on One side in a Spiral manner – Presence of rachilla – terminal part of the peduncle is flowerless
Solution
In Euphorbia/Poinsettia the cyathium inflorescence shows cohesion of bracts forming a cup with centrifugally opening numerous male flowers around a single female flower (statement III), while Casuarina has
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