1.
Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because-
2.
Bony fishes, bryophytes and pteridophytes show internal fertilisation.
3.
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
4.
External fertilisation occurs in majority of
5.
Sugarcane is propagated by
7.
Identify the correct sequence of events.
9.
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 |
10.
The terms homothallic and monoecious are used to denote
11.
Mitotic cell divisions occur during embryo-genesis.
14.
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 |
15.
In papaya and date palm, both male and female flowers are present on the same plant.
16.
Mark the odd one in each of the following groups.
Earthworms, Sponges, Cockroaches, Tapeworms.
19.
There is no natural death in single celled organisms like Amoeba and bacteria because-
