Eukaryotic cells, like those seen here, are very similar in structure. if we compare the three cells we note that both the plant and fungal cell have something in common, something that is lacking in the animal cell. that is

Cell wall

Explanation:

Certain group of cells are classified as Eukaryotic cells because they possess a membrane-bound nucleus that houses their genetic material (DNA) in addition to other cellular organnelles. Organisms with eukaryotic cells fall within three major groups viz: Plants, Fungi and Animal. These three distinct organisms, although all eukaryotic, have their own differences.

As stated in the question, plant cells and fungal cells share a unique structure that the animal cell does not possess. This unique structure is the CELL WALL. In addition to their cell membrane, plant and fungal cells have cell walls that is made up of cellulose and chitin respectively. The cell wall confers rigidity upon their cells. However, animal cells lack cell walls in their cells.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

the correct answer in apex is tissue development, i know because i just had this question