Question

Name the mode of reproduction of the following organisms and state the important feature of each mode: (i) Planaria (ii) Hydra (iii) Rhizopus

Answer 1

Reproduction:

1. Reproduction is the production of offspring.
2. The reproduction is of two types: sexual reproduction and asexual reproduction.
3. Sexual reproduction is the production of new organisms by the combination of genetic information of two individuals of different sex.
4. In asexual reproduction, one living organism generates offspring that are genetically identical to itself

Planaria:

1. Asexual planarians reproduce by cutting themselves into two pieces through a process called binary fission.
2. The resulting head and tail pieces regenerate within a week, forming two new worms.
3. Regeneration is the type of asexual reproduction.

Hydra:

1. Budding is the asexual reproduction method followed by Hydra.
2. During this process, an outgrowth is formed known as a bud.
3. It develops into an adult.
4. It gets separated from the main body after it gets maturity.

Rhizopus:

1. They reproduce by the formation of the spores, which is asexual reproduction.
2. The body of the fungus consists of hyphae and it develops into sporangium.
3. The sporangium is a swollen structure bearing the spores, located at the tip of the filaments.