Q. 23 B3.9( 15 Votes )
Explain why, more complex multicellular organisms cannot give rise to new organisms through regeneration.
Multicellular organisms have a high degree of specialized organization in their body. In their body, multiple cells make tissue, tissues make organs and organs make organ system and finally many organ systems makeup an organism. So, more complex multicellular organisms cannot be reproduced from their cut body parts by regeneration.
Rate this question :
What happens when a Planaria gets cut into two pieces?Science - Board Papers
Explain the process of regeneration in planaria.Science - Board Papers
Draw diagrams to explain the regeneration that takes place in each of the body parts of planaria when its body is cut into three pieces. Name any other organism in which a similar process can be observed.Science - Board Papers
Explain the process of regeneration in Planaria. How is this process different from reproduction?Science - Board Papers
A Planaria worm is cut horizontally in the middle into two halves P and Q such that the part P contains the whole head of the worm. Another Planaria worm is cut vertically into two• halves R and S in such a way that both the cut pieces R and S contain half head each. Which of the cut pieces of the two Planaria worms could regenerate to form the complete respective worms ?
A. only P
B. only R and S
C. P, Rand S
D. P, Q, R and SLakhmir Singh & Manjit Kaur- Biology
A worm X found in freshwater and slow-moving streams has been accidently cut into three pieces. It was observed that in due course of time, each cut piece of the worm develops to become a complete worm by growing all the missing parts.
(a) Name the worm X which can exhibit this phenomenon of making complete worm from its cut body parts.
(b) Name another organism Y which possesses the same characteristic of growing fully from its cut body parts.
(c) What is the name of this process in which a complete organism is formed from its cut body part.
(d) State whether X and Y are unicellular and/or multicellular organisms.
(e) Can a dog be produced completely from its cut body part (say, a cut tail) just like organisms X and Y ? Why?Lakhmir Singh & Manjit Kaur- Biology
The two organisms which can regenerate fully from their cut body parts are :Lakhmir Singh & Manjit Kaur- Biology
Name two animals which show reproduction by regeneration method, which one of these also reproduces by budding method?Science - Board Papers
One of the following organisms does not reproduce by fission. This is :Lakhmir Singh & Manjit Kaur- Biology