Animal cells do not have Cell Walls, or Vacuoles, or Chloroplasts.
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zoology
You would first need to explain the characteristics of the organism
The Euglena is a protozoa with both plant and animal characteristics. It can both photosynthesize and eat other cells to get sustenance.
It is the animal cell which doesn't have cell wall and chloroplast as these structure are the distinguishing characteristics of plant and algal cells.
Cell wall/cell membrane
The shared characteristics between animal and plant cells are: cell membrane, nucleus, ribosomes, cytoplasm and the Golgi apparatus.
Euglena can not be considered a plant cell because it has animal and plant characteristics.
cell structure
Cell can be any mentioned above since all the choices have the characteristics that a normal cell has. A cell is defined as the smallest structural unit of an organism that is capable of independent functioning, which the bacteria, plant, and animals all are capable of. Although they all may differ in structure or their certain characteristics, the characteristics that make one a cell is present among all three.
A planarian is a type of flatworm that is not parasitic. It is considered an animal because it is multicellular, does not have a cell wall, is heterotrophic, can move and is diploid.
the cell is a cell and an animal cell is an animal cell