Question

What happens when-
A. Accidentally Planaria gets cut into many pieces?
B. Bryophyllum leaf falls on the wet soil?
C. The sporangia of Rhizopus burst upon maturation?

Answer 1

Hint: These are all examples of different types of asexual reproduction. Reproduction is the process by which an organism gives rise to its progeny. The offspring formed by the organism is similar to itself. Reproduction is important as it enables the continuity of species, generation after generation.

Complete answer:
A. When Planaria accidentally gets cut into many pieces, each piece grows the missing part and forms the complete organism. This form of asexual reproduction is known as regeneration. It is the ability of an organism to repair injured parts and to replace the missing organs lost due to accident or autonomy.
B. When Bryophyllum leaf falls on wet soil and comes in contact with it, the buds present in the leaf at the marginal notch sprout and form a new plant of bryophyllum. It is a form of vegetative proportion. Vegetative reproduction is a type of reproduction in which new plants are formed from vegetative parts of the plants like leaves, root, stem, etc.
C. When the sporangia of Rhizopus bursts upon maturation, the spores present inside them get exposed and dispersed in air. When these spores fall on suitable substratum they germinate and give rise to new mycelium. This form of asexual reproduction is known as population.

Note:
Reproduction is necessary for the continuity of species. Reproduction is of two types
Sexual reproduction- In this type of reproduction two parents of opposite sex are required. Both the parents produce gametes which fuse to form zygote.
Asexual reproduction- In this type of reproduction only a single parent is required. Fusion of gametes didn't take place for the formation of gametes.
The offspring formed by the process of a sexual reproduction are identical to their parents and are referred to as clones.