CBSE BOARD XII, asked by Anonymous, 9 months ago

what is amoeba ? others dont answer only yashicaruthvik should answer any others answered their brainly account will be deleted

Answers

Answered by Yashicaruthvik
25

Answer:

a single-celled animal that catches food and moves about by extending fingerlike projections of protoplasm. Amoebas are either free-living in damp environments or parasitic.

Explanation:

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Answered by Anonymous
3

Amoeba:-

  • Amoeba is a unicellular organism that has the ability to change its shape. They are usually found in water bodies such as ponds, lakes and slow-moving rivers. Sometimes, these unicellular organisms can also make their way inside the human body and cause various illnesses.

  • One of the first reports referencing amoebas dates can be traced back to 18th century. A German naturalist named August Johann Rösel von Rosenhof who discovered a specimen and made detailed illustrations of the same in 1755.

Structure of Amoeba:-

Typically, most amoebas are characterized by the following features:

  • Movement occurs through the use of pseudopodia, where the cytoplasm pushes the plasma membrane outward or inward, creating blunt, finger-like projections.

  • There can be multiple pseudopodia at one particular instance, hence, its shape rapidly changes.

  • Structure of amoeba primarily encompasses 3 parts – the cytoplasm, plasma membrane and the nucleus.

Note:- Refer the attachment for diagram!!!

Attachments:
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