To determine: The term acellular.
Introduction: The structure of the cell was first observed and analyzed by Robert Hooke. The cell structure is complicated machinery consisting of various intracellular structures called organelles and support structures called cytoskeletal elements. The nucleus is the organelle that controls and regulates all the activities taking place inside a cell.
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Explanation of Solution
The word acellular is defined as the object that does not contain cell or typical components of a cell. All the living organisms consist of one or many cells. The prokaryotes and eukaryotes are made up of cells that have typical cellular constituents. However, some organisms do not fulfill the criteria of living organisms in the aspect that they lack cells. Such organisms are called viruses. These organisms do not have cell or any of its components except genetic material. The presence of genetic material thus classifies them under the category of organisms.
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