Plants, which produce characteristic pneumatophores and show vivipary belong to

(1) mesophytes

(2) halophytes

(3) psammophytes

(4) hydrophytes

Coconut fruit is a:

1. Berry

2. Nut

3. Capsule

4. Drupe

In Bougainvillea thorns are the modifications of:

1. Adventitious root

2. Stem

3. Leaf

4. Stipules

Root hairs develop from the region of:

1. Elongation

2. Root cap

3. Meristematic activity

4. Maturation

The morphological nature of the edible part of coconut is:

1. Cotyledon

2. Endosperm

3. Pericarp

4. Perisperm

The term 'polyadelphous' is related to 

1. gynoecium

2. androecium

3. corolla

4. calyx

Tricarpellary, syncarpous and gynoecium is found in flowers of

1. Solanaceae

2. Fabaceae

3. Poaceae

4. Liliaceae

Which of the following is not a stem modification?

1. Thorns of citrus

2. Tendrils of cucumber

3. Flattened structures of Opunita

4. Pitcher of Nepenthes