1.
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
2.
In animals, juvenile phase is followed by-
5.
Mark the odd one in each of the following groups.
Earthworms, Sponges, Cockroaches, Tapeworms.
6.
There are various types of reproduction. The type of reproduction adopted by an organism depends on
7.
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 |
8.
Mitotic cell divisions occur during embryo-genesis.
9.
There is no natural death in single celled organisms like Amoeba and bacteria because-
11.
The terms homothallic and monoecious are used to denote
13.
The most significant feature of vegetative propagation is that
15.
Sugarcane is propagated by
16.
In papaya and date palm, both male and female flowers are present on the same plant.
17.
Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because-
20.
Plants produced through vegetative propagation are called clones.
