Certain cell types normally have several nuclei per cell. how could such multinucleated cells be explained?

The cell underwent repeated mitosis, but cytokinesis did not occur.

Explanation:

A cell that has more than one nucleus inside it is known as a multinucleated cell.  These multinucleated cells exit two types according to their formation process.

The porocyte process is the most common and proven and is generated by cell mitosis without cytokinesis. That is to say that the duplication of all the genetic information of the cell is generated but the cell division does not occur and therefore all the articles and genetic information remain within the same cell.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.