Seed coat is not thin, membranous in :

In some plants thalamus contributes to fruit formation. Such fruits are termed as:

Which of the following is incorrect for wind-pollinated plants?

Identify the correct features of Mango and Coconut fruits.
(i) In both fruit is a drupe
(ii) Endocarp is edible in both
(iii) Mesocarp in Coconut is fibrous, and in Mango it is fleshy
(iv) In both, fruit develops from monocarpellary ovary
Select the correct option from below :

Identify the set of correct statements:
A. The flowers of Vallisneria are colourful and produce nectar
B. The flowers of waterlily are not pollinated by water
C. In most of water-pollinated species, the pollen grains are protected from wetting.
D. Pollen grains of some hydrophytes are long and ribbon like
E. In some hydrophytes, the pollen grains are carried passively inside water.
Choose the correct answer from the options given below:

Identify the correct description about the given figure :

Perisperm differs from endosperm in:

Megasporangium is equivalent to :

Coconut water from a tender coconut is:

Advantage of cleistogamy is: