Why are skeletal muscle fibers multinucleated

It is because large skeletal muscle fibers form by the fusion of thousands of individual muscle cells

Explanation:

During the developments of muscle fibers, multinucleated arrangment is formed and it is also known as syncytium (syncytium is defined as multiple cell fusions of uninuclear cells).

Multinucleated arrangment of muscle fibers makes the muscles efficient, because many nuclei can control the contractions of long cell better.

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.