During unfavourable conditions, Amoeba exhibits:
During unfavourable conditions, Amoeba exhibits:
The correct option is B Spore formation
Amoeba is a unicellular eukaryotic organism that has the ability to alter its shape mainly by extending and retracting pseudopods. They move and feed by using these pseudopods.
In favourable conditions, they reproduce normally by binary fission, where the parent Amoeba divides into two halves and each rapidly grows into a mature individual adult. But under unfavourable conditions, Amoeba withdraws its pseudopodia and starts secreting a three-layered cyst around its own body wrapping itself inside, through a process known as encystation. Once favourable condition arrives again, it starts dividing by multiple fissions creating numerous tiny amoeba/ pseudopodiospores and gradually bursts the cyst and releases it to the surrounding to form new amoebae, this whole process is called sporulation.
Parthenogenesis refers to a process where an egg can directly form an embryo without undergoing fusion with sperm. For example, bees and ants.
Fragmentation is a process of asexual reproduction where the parent body gets split into fragments which can develop into full-grown adults. For example, filamentous cyanobacteria.
Hibernation is an adaptation shown by some mammals that help them survive adverse conditions such as extreme low temperatures. During hibernation, the organism can greatly reduce its metabolic activity, heart rate, breathing to conserve more energy and survive the long winters. For example, bears.
Amoeba is a unicellular eukaryotic organism that has the ability to alter its shape mainly by extending and retracting pseudopods. They move and feed by using these pseudopods.
In favourable conditions, they reproduce normally by binary fission, where the parent Amoeba divides into two halves and each rapidly grows into a mature individual adult. But under unfavourable conditions, Amoeba withdraws its pseudopodia and starts secreting a three-layered cyst around its own body wrapping itself inside, through a process known as encystation. Once favourable condition arrives again, it starts dividing by multiple fissions creating numerous tiny amoeba/ pseudopodiospores and gradually bursts the cyst and releases it to the surrounding to form new amoebae, this whole process is called sporulation.
Parthenogenesis refers to a process where an egg can directly form an embryo without undergoing fusion with sperm. For example, bees and ants.
Fragmentation is a process of asexual reproduction where the parent body gets split into fragments which can develop into full-grown adults. For example, filamentous cyanobacteria.
Hibernation is an adaptation shown by some mammals that help them survive adverse conditions such as extreme low temperatures. During hibernation, the organism can greatly reduce its metabolic activity, heart rate, breathing to conserve more energy and survive the long winters. For example, bears.
