how does the reproduction take place in amoeba under favourable and unfavourable conditions?
Asked by nathsantanukumar | 10th Apr, 2018, 04:54: PM
Reproduction in Amoeba under favourable conditions:
- Amoeba reproduces primarily by binary fission.
- Binary fission is the division of the parent cell.
- When the organism matures, it grows in size. Its nucleus duplicates.Cytoplasm divides in the middle.
- A single parent organism gives rise to two identical daughter organisms.
Reproduction in Amoeba under unfavourable conditions:
- 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, Amoeba withdraws its pseudopodia and becomes almost round.
- It secretes a hard covering called cyst. The cyst forms a thick protective coat around it.
- Inside the cyst, the nucleus undergoes repeated divisions to form many nuclei.
- Nuclear division is followed by the division of cytoplasm.
Answered by Sheetal Kolte | 10th Apr, 2018, 06:33: PM
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