Which of the following statements is/are true for sexual reproduction in plants?

(i) Plants are obtained from seeds
(ii) Fertilisation can occur only after pollination
(iii) Two plants are always essential
(iv) Only insects are agents of pollination

Q.

Which of the following are asexual modes of reproduction in plants?

I: Pollination

II: Vegetative propagation

III: Fragmentation

IV: Spore formation

Q.

Read following statements about Hydrophily.
(i) In majority of water plants, pollination is done by insects and air.
(ii) In Vallisneria pollination occur beneath the surface of water
(iii) Well developed non-essential whorls are present
(iv) Stalk of female flower shows coiling in Vallisneria

Q. Which statements among the following are true?

i. Water pollinated plants are Vallisneria, water lily, Zostera.
ii. Water pollination is mostly found in monocots and only in very few dicots.
iii. Majority of floating aquatic plants are insect or wind pollinated.
iv. Water pollinated plants produce nectar.

Q.

Which of the following are asexual modes of reproduction in plants?

I: Fertilisation

II: Vegetative propagation

III: Fragmentation

IV: Spore formation

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Fertilisation occurs after pollination in plants. ( )
2. Stamen is the male organ of the flower. ( )
3. Self-pollination is better than cross-pollination. ( )
4. Ovule turns into seeds after fertilisation. ( )
5. Ginger and turmeric are rhizomes. ( )