Question 3:
Can you think of reasons why more complex organisms cannot give rise to new
individuals through regeneration?
Answer:
Simple organisms such as Hydra and Planaria are capable of producing new indivi-
duals through the process of regeneration. The process of regeneration involves the
formation of new organisms from its body parts. Simple organisms can utilize this
method of reproduction as their entire body is made of similar kind of cells in which
any part of their body can be formed by growth and development.
However, complex organisms have organ-system level of organization. All the organ
systems of their body work together as an interconnected unit. They can regenerate
their lost body parts such as skin, muscles, blood, etc. However, they cannot give
rise to new individuals through regeneration.
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