Final answer:
Cells can sometimes be seen using the scanning and the 10x objective lenses on a microscope, and this is influenced by the microscope's capabilities, the cell type, and the sample preparation.
Step-by-step explanation:
The question asks whether cells can be seen using the scanning and the 10x objective lenses on a microscope. The correct answer is c) Sometimes. This depends on a variety of factors including the type of microscope being used and the type of cell being observed.
Light microscopes, which are often found in college biology labs, can magnify cells up to approximately 400 times. However, the visibility of the cells also depends on the resolving power of the microscope, the preparation of the sample, and whether special stains are used to highlight cellular components.
It should be noted that while light microscopes are sufficient for viewing many types of cells, there are instances where more advanced microscopy techniques such as electron microscopy may be required to resolve the details of certain cells or structures within them.