Q29
What is regeneration? Give one example of an organism that shows this
process and one organism that does not. Why does regeneration not
occur in the latter?
OR
Identify a, b and c in the given diagram and write one function of each.
(b)
Answers
In this type of regeneration the lost part is replaced by the change in the tissues present in the lost part and each injured part forms a complete organism. it is a process in which micro organism get back their body parts , its example is Planaria . Amoeba does not show this process
Hope this helps you
Please mark as brainliest
ANSWER
(a) Fragmentation:
Fragmentation is the breaking of the body into parts and then the organism develops all the parts of the body. The fragmentation is the type of reproduction in lower organisms. The fragments which are produced can develop into new organisms.
b) Regeneration:
In the case of regeneration, the organism has the ability to develop the body part which has been lost due to an accident. Many sea stars reproduce asexually by regeneration. For example, if the arm of an individual sea star is broken off it will regenerate a new sea star.
(c) Budding:
Budding is a form of asexual reproduction. There is a formation of an outgrowth from the body which develops into a new individual. The buds grow and develop by remaining attached to the body of the parent. When the bud develops to a particular size, the bud gets detached and grow individually. In Hydra, a bud forms that develops into an adult, which breaks away from the main body.