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There is no natural death in single-celled organisms like Amoeba and bacteria because
  • a)
    They are microscopic.
  • b)
    They cannot reproduce asexually.
  • c)
    They reproduce by binary fission.
  • d)
    The parental body is distributed among the offspring.
Correct answer is 'D'. Can you explain this answer?
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There is no natural death in single-celled organisms like Amoeba and b...
In single-celled organisms like Amoeba and bacteria the parental body itself divides into two parts and becomes daughter cells. Each of these divided cells rapidly grows into adult organisms. Therefore, the parent cannot be said to have died, it continues living as daughter cells.

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There is no natural death in single-celled organisms like Amoeba and b...
The reason why there is no natural death in single-celled organisms like Amoeba and bacteria is because the parental body is distributed among the offspring.

Reproduction in single-celled organisms occurs through binary fission, where a parent cell divides into two identical daughter cells. During this process, the entire parental body is distributed among the offspring. As a result, there is no fixed lifespan of these organisms as there is no clear line between "parent" and "offspring" cells.

This is different from multicellular organisms, where there is a clear distinction between parent and offspring cells. In multicellular organisms, cells age and eventually die due to various factors such as DNA damage, telomere shortening, and cellular stress. However, in single-celled organisms, the cells are continually replaced through binary fission, and there is no accumulation of damage over time that would lead to a fixed lifespan.

In conclusion, the lack of natural death in single-celled organisms is due to their unique mode of reproduction. The continuous division of cells through binary fission and the distribution of the parental body among the offspring cells ensure that there is no fixed lifespan in these organisms.
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There is no natural death in single-celled organisms like Amoeba and b...
Single-celled organisms like Amoeba and bacteria do not undergo natural death because their parental body is distributed among the offspring during the process of binary fission. This means that the parent cell divides into two identical daughter cells, each containing a portion of the parental body. As a result, there is no old or aging part of the cell that can lead to natural death.

Explanation:

• Binary fission is a process of asexual reproduction in which a single cell divides into two identical daughter cells.

• In bacteria, the DNA replicates and the cell elongates before dividing into two cells, each with a copy of the DNA.

• In Amoeba, the cell elongates and divides into two daughter cells, each containing a portion of the parental body.

• Since the parental body is distributed among the offspring, there is no old or aging part of the cell that can lead to natural death.

• The offspring are genetically identical to the parent, which means that they have the same lifespan as the parent.

• This is in contrast to multicellular organisms, where cells age and die due to wear and tear, accumulation of damage, and programmed cell death.

• In conclusion, single-celled organisms like Amoeba and bacteria do not undergo natural death because of their ability to reproduce asexually by binary fission, which distributes the parental body among the offspring.
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There is no natural death in single-celled organisms like Amoeba and bacteria becausea)They are microscopic.b)They cannot reproduce asexually.c)They reproduce by binary fission.d)The parental body is distributed among the offspring.Correct answer is 'D'. Can you explain this answer?
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