Guide. A bone density test measures the density of minerals (such as calcium) in your bones using a special X-ray. This information is used to estimate the strength of your bones.
Animal cells do have vacuoles, but they are smaller, larger in number (plant cells usually have just one or a few large vacuoles) AND serve a somewhat different purpose than those of plants.
Different: Animal cells do not have a rigid cell wall like plant cells do.Plant cells have chloroplasts f â¦ or photosynthesis, but animal cells don't.Plant cells usually have one or more large vacuoles (fluid compartments), but some animal cells have regular vacuoles while other animal cells don't have any vacuoles.lant cells have Cell Walls AND Cell Membranes Animal Cells have only a cell membrane. * Plant Cells are autotrophs Animal Cells are Heterotrophs * Plant Cells make Chlo â¦ ropyll Animal Cells don't. plants cells have cell wall and chloroplast while animal cells doesn't. + 3 others found this useful.