How many plants in the list given below have composite fruits that develop from an inflorescence?
Walnut, poppy, radish, fig, pineapple, apple, tomato, mulberry

• Four

• Five

• Two

• Two

Vexillary aestivation is characteristic of the family

• Fabaceae

• Asteraceae

• Solanaceae

• Solanaceae

23.

Which one of the following organisms is correctly matched with its three characteristics?

• Pea: C₃ pathway, Endospermic seed, Vexillary aestivation

• Tomato: Twisted aestivation, Axile placentation, Berry

• Onion: Bulb, Imbricate aestivation, Axile placentation

• Onion: Bulb, Imbricate aestivation, Axile placentation

How many plants in the list given below have marginal placentation?
Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin

• Four

• Five

• Six

• Six

Plants with ovaries having only one or a few ovules, are generally pollinated by

• Bees

• Butterflies

• Birds

• Birds

Which one of the following shows isogamy with non-flagellated gametes?

• Sargassum

• Ectocarpus

• Ulothrix

• Ulothrix

When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

• vexillary

• imbricate

• twisted

• twisted

Cuscuta is an example of

• ectoparasitism

• brood parasitism

• predation

• predation

• Allium

• Sesbania

• Petunia

• Petunia

Keel is the characteristic feature of flower of

• Tulip

• Indigofera

• Aloe

• Aloe