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Answer 1

Answer:

1. In binary fission, the parent cell divides itself into two equal and identical daughter cells. It is the most common form of reproduction in prokaryotes such as bacteria. In multiple fission, a single parent cell is divided into many daughter cells.

2.Reproduction through spores gives several advantages to an organism. ... Spores can remain dormant till favourable conditions become available. Spores help an organism to tide over the bad phase. Spores can be spread through water, air or animals and thus is good for the spread of an organism to more places.

3.Complex multicellular organisms cannot give rise to new organism because the tissue and specialised cell make up the organs in the body. ... Organisms at higher complex levels cannot give rise to new individuals through regeneration because they have organization of their organs system at different levels.

4.Vegetative propagation method is used for growing certain plants which do not produce viable seeds. It is also used for growing of plants bearing superior traits, because they produce genetically identical plants. It is also used for growing plants which require longer time to grow and become mature.

5.DNA copying is an essential part of the reproduction process because an organism's entire genetic information is contained within the DNA. If the DNA mutates, then there is a chance that the resulting organism may be born with a deformity or other genetic abnormality.

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