: Their most famous feature. They extend "false feet" (typically broad, lobose ones) to creep across surfaces and engulf food through a process called phagocytosis .

: The cell is essentially a blob of cytoplasm divided into a clear, stiff outer ectoplasm and a grainy, fluid inner endoplasm .

The (or Amoebidae) are a classic group of single-celled organisms known for their "naked" cells and dynamic movement. Unlike their cousins that build protective shells, these amoebae rely on a flexible plasmalemma (cell membrane) that allows them to constantly shift their shape. Key Features of Amoebida

: You’ll find them everywhere from freshwater ponds and wet soil to salty ocean water and even inside other animals. Famous Examples

: Because they lack a rigid cell wall or pellicle, their morphology changes every few seconds as they move or feed.