In unfavourable conditions, Amoeba secretes a three-layered hard covering around itself, this phenomenon is scientifically called

encystation

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encrustation

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encapsulation

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enclosement

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Solution

The correct option is A encystation
In unfavourable conditions, Amoeba withdraws its pseudopodia and secretes a three-layered covering or cyst around itself, which is known as encystation.
As favourable conditions return, Amoeba divides by multiple fission and produces many minute amoebae called pseudopodiospores.

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Similar questions

Q. Under unfavourable conditions Amoeba withdraws its pseudopodia and secretes a three-layered hard covering or cyst around itself. This phenomenon is termed as __________.

The phenomenon of encystation and pseudopodial spore formation in amoeba under unfavourable conditions is called __

Q. Assertion: Amoeba reproduce by binary fission during unfavourable conditions
Reason: During binary fission the Amoeba withdraws its pseudopodia and forms a cyst around itself.

in a long time period of unfavourable conditions microorganisms survive but not human beings. is it because it can form a hard cover called sporangium that can protect it?

Q. Choose the incorrect statement/statements from the following statements.
I) Amoeba can only reproduce by process of binary fission.
II) In Bryophyllum vegetative propagation occurs by leaf buds.
III) The lifespan of a parrot is 15 years.
IV) During unfavourable conditions, a phenomenon called encystation occurs in Paramecium.

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