EARTH SCIENCE
GEOBIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It has asexual reproduction and the new arm will be different from the previous one either way.
|
|
|
Since it reproduces asexually, it alone caused the other arm to come out, and that arm is the same as the previous one.
|
|
|
He needs another starfish to grow another arm
|
|
|
None of the above
|
Detailed explanation-1: -Asexual reproduction in starfish takes place by fission or through autotomy of arms. In fission, the central disc breaks into two pieces and each portion then regenerates the missing parts.
Detailed explanation-2: -Starfish exhibit an asexual mode of reproduction through binary fission and regeneration. Starfish is a bisexual organism and undergoes regeneration as a method for asexual reproduction. In binary fission, the parent organism’s cell divides exactly into two genetically identical daughter cells.
Detailed explanation-3: -When any arm of a Starfish gets injured, the animal casts off its own arm-a process called Autotomy. Then by the process of Regeneration, the Starfish can re-grow a completely new perfect arm in the place of the injured one. Even, in some Sea Star (viz. Linckia), an arm can even regenerate a complete animal.
Detailed explanation-4: -Fission is the type of asexual reproduction in which the reproducing organksm breaks into two parts and each part develops into another individual. During fission in a starfish, the central disc of starfish disintegrates into two pieces. Each piece then regenerates into a new Starfish.