Question

amoeba

Answer 1

DO you want the definition of amoeba?

Answer 2

@nanda.kumar ?

Answer 3

amoeba is a kind of protozoan which in turn is a protist.

Answer 4

An amoeba is a type of unicellular organism usually found in water around decaying vegetation, in wet soil and in animals such as humans. It is relatively advanced, and can extend and retract blob-like arms called pseudopodia, which it can use to grasp food particles and to propel itself through microscopic terrain. The name “amoeba” can mean a particular genus of microorganism or any member of a large family of similar life forms. Although most types are harmless, a few can cause serious diseases in humans.



Protists


These organisms are types of protist, which is a group of simple life forms that are neither plant nor animal. The majority are microscopic, but some species are large enough to be visible to the naked eye. Amoeba proteus is the best-known species, and it measures around 0.028 inches (0.7mm), which is just visible. Some species can reach 0.1 inch (about 3 millimeters) or more in diameter. It is thought that the German naturalist August von Rosenhof was the first to observe these microorganisms in 1757, using an early microscope.



Structure


It is easy to study amoebas because they are relatively large and almost transparent. A basic light microscope can therefore reveal their internal structure and organs. The organism’s mobility and complexity makes it much more interesting to study than more simplistic protists. Scientists frequently use the amoeba for testing and observation, calling it a “model organism.”