A scientist wants to compare two cells: one from a liver and one from a heart. Which laboratory tool would be most helpful? and why?​

To compare cells from a liver and a heart, the most helpful laboratory tool would be a microscope. Microscopes are devices that allow us to view objects that are too small to be seen by the naked eye. They magnify the image of the cells so that differences in cell structure, organelles, and other characteristics can be observed and analyzed.

The reason a microscope is particularly useful for this comparison is that it can provide detailed visualizations of the cells' morphology (shape and structure), the arrangement of the cells' interior components, such as the nucleus, mitochondria, and other organelles, and can also reveal any special features or inclusions unique to the specific types of cells.

There are different types of microscopes that could be used for this purpose:

1. Light Microscope: A light microscope uses visible light passing through lenses to magnify objects, and can magnify cells up to about 1000 times their actual size. It's great for viewing living cells and their movements.

2. Electron Microscope: Electron microscopes use a beam of electrons, instead of light, to create an image and can magnify objects up to two million times their actual size. They are more sophisticated tools that provide much higher resolution images, allowing you to see much smaller structures within the cell.

The choice between a light microscope and an electron microscope would depend on the level of detail required for the comparison and whether the cells can be observed in a non-living state (as is necessary for electron microscopy).