Maybe it's because not everyone can cope with each other after such a long time. Maybe not everyone has great social skills after living together for awhile.
<u>Spanish:</u> Las células animales son típicas de la célula eucariota, encerradas por una membrana plasmática y que contienen un núcleo y orgánulos unidos a la membrana. A diferencia de las células eucariotas de plantas y hongos, las células animales no tienen pared celular.
<u>English:</u> Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall.
