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amoeba are a single celled life form, a single celled organism and measured to be around 0.25 mm!

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Margarette Ratke

Lvl 13
1y ago
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13y ago

Amoeba are single cell (unicellular) organisms that move in search of food by extending cytoplasm outward to form pseudopodia (false feet). They have thin cell membranes, a semirigid layer of ectoplasm, a granular, jellylike endoplasm, and an oval-shaped nucleus. A reaction to chemicals in their food (smaller organisms) cause the amoeba to form pairs of pseudopodia which wrap around the organism being eaten, and a cavity is formed. A digestive enzyme in the cavity breaks down the organism into substances that are absorbed into the cytoplasm for nourishment. A mature amoeba reproduce by splitting into two equal parts, each of which split into two more equal parts when they have matured. There is no sexual reproduction occurs in amoeba. They simply divide by mitotic cell division so the daughter amoebic cells are identical to the parental cell with idenctical genotypic and phenotypic properties.

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Wiki User

11y ago

amoeba has following general characteristics;

they are unicellular organisms

movement by pseudopodia

mode of nutrition is phagocytosis

may vary in size from 10-20micrometre

habitat ;marine and fresh water

some may be pathogenic

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12y ago

amoeba are single cell that move in search of food by extending cytoplasm

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Wiki User

16y ago

single celled organism

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Wiki User

10y ago

it is a asdfdsfdfdsfsdfsdf

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Q: What are amoeba characteristics?
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