1.
Bony fishes, bryophytes and pteridophytes show internal fertilisation.
4.
The most significant feature of vegetative propagation is that
5.
In animals, juvenile phase is followed by-
7.
A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has
8.
Gametes are always haploid and gametogenesis always involves meiosis.
9.
Match the terms in Column I with the organisms in Column II.
| Column I | Column II |
| A. Fragmentation | 1. Pistia |
| B. Binary fission | 2. Spirogyra |
| C. Bulbils | 3. Saccharomyces |
| D. Budding | 4. Paramoecium |
| | 5. Agave |
11.
Plants produced through vegetative propagation are called clones.
12.
Match the asexual reproductive structures in Column I with the organisms in Column II
| Column I | Column II |
| A. Conidia | 1. Chiamydomonas |
| B. Gemmules | 2. Hydra |
| C. Zoospores | 3. Penicillium |
| D. Buds | 4. Sponges |
| | 5. Banana |
13.
Mitotic cell divisions occur during embryo-genesis.
17.
Sugarcane is propagated by
18.
External fertilisation occurs in majority of
20.
Vegetative propagation in Pistia occurs by
