Describe multiple fission in Amoeba.
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Answer: Amoeba reproduces primarily by binary fission. However, a method known as multiple fission is adopted by the unicellular organism Amoeba to survive and reproduce under unfavourable conditions. When the conditions are unfavourable, Amoebawithdraws its pseudopodia and becomes almost round.
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Under conditions of food shortages, amoebae will reproduce via multiple fission. This process involves the production of multiple daughter cells by:
the pseudopodia being retracted and the amoeba forming a spherical shape;
the amoeba secreting a substance that hardens and encapsulates the cell, forming a cyst (encystment);
the amoeba, protected by the cyst, will undergoing mitosis several times, producing multiple daughter cells;
when favorable conditions return, the cyst wall bursts, releasing the daughter cells. Within a host, the amoeba will undergo encystment as a means of protection against desiccation as it travels through the colon, which ensures its survival outside of the host.
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ANS...
Under conditions of food shortages, amoebae will reproduce via multiple fission. This process involves the production of multiple daughter cells by:
the pseudopodia being retracted and the amoeba forming a spherical shape;
the amoeba secreting a substance that hardens and encapsulates the cell, forming a cyst (encystment);
the amoeba, protected by the cyst, will undergoing mitosis several times, producing multiple daughter cells;
when favorable conditions return, the cyst wall bursts, releasing the daughter cells. Within a host, the amoeba will undergo encystment as a means of protection against desiccation as it travels through the colon, which ensures its survival outside of the host.
HOPE U UNDERSTAND MY ANS....
THANK U..°_^
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