Question

What happens when:
(a) Accidently, Planaria gets cut into many pieces?
(b) Bryophyllum leaf falls on the wet soil?
(c) On maturation sporangia of Rhizopus bursts? (3)

Answer 1

Answer:

when planaria is cut down into many pieces it again regenerates into a new organism as it has a power of regeneration

Answer 2

Planaria, Bryophyllum and Rhizopus - Reproduction

Explanation:

Planaria is a kind of a flatworm and when it gets accidentally cuts into several pieces, each individual piece will regenerate to form a complete Planaria organism. This is the method by which they reproduce asexually.

When a Bryophyllum leaf falls on moist soil, the buds that are produced in the notches along the leaf will develop into new plants. This kind of reproduction is known as vegetative propagation.

When the sporangia of Rhizopus is mature, it will burst open, thus spreading the spores on air. These spores are carried away by wind and water to a different location and when they land on favourable environment, they will grow. This is an asexual reproduction.