2.
There is no natural death in single celled organisms like Amoeba and bacteria because-
4.
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 |
5.
Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because-
6.
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
7.
Plants produced through vegetative propagation are called clones.
8.
Gametes are always haploid and gametogenesis always involves meiosis.
9.
The most significant feature of vegetative propagation is that
10.
In papaya and date palm, both male and female flowers are present on the same plant.
12.
Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because
15.
Mark the odd one in each of the following groups.
Earthworms, Sponges, Cockroaches, Tapeworms.
17.
The terms homothallic and monoecious are used to denote
18.
Bony fishes, bryophytes and pteridophytes show internal fertilisation.
19.
External fertilisation occurs in majority of
20.
Vegetative propagation in Pistia occurs by
