Because they are so old and over years they fade and wear away. <span />
Yes every time of you did not know
Answer:
thank for the point hahaha
If the environment is a windy and sandy area, floppy ears could prevent sand or dirt from directly going into the ears, that’s my prediction.
Cell membrane: Surrounds the cell and holds all the parts together and allows materials to enter and exit.
Nucleus/Chromosomes: Are made of material called DNA. ...
Cytoplasm: Is all the material between the Cell membrane and Nucleus. ...
Vacuoles: They act like a stomach. ...
Mitochondria: They are the cells power producers.