Their main difference is how they form the daughter cells during cytokinesis. During that stage, animal cells form furrow or cleavage that gives way to formation of daughter cells. Due to the existence of the rigid cell wall, plant cells don't form furrows.
Hope this helps, if not let me know. Also, do you have multiple choice answers? If this isn't one let me know the options and I'm sure I can help.
The answer would be bone marrow
The outermost layer of the Earth is called the crust.
(C) earth's outer iron core
this is because iron is magnetic and therefore forms a strong magnetic field