It's tough to say definitively which cells are "easiest" to identify under a microscope, as that depends on the specific microscope, the experience of the viewer, and the preparation of the sample. However, some cells are generally considered easier to identify than others:

Easiest to identify:

* Red Blood Cells (Erythrocytes): These are small, biconcave disks without a nucleus. They are abundant in blood smears and very distinct in their shape.

* Onion Epithelial Cells: These are large, rectangular cells with a prominent nucleus. They are easy to obtain and prepare for viewing.

* Amoeba: These single-celled organisms are relatively large and have a characteristic amoeboid shape, with pseudopodia extending from their bodies.

Moderately Easy:

* Cheek Cells: These human cells are relatively large and have a prominent nucleus, but can be harder to distinguish from other epithelial cells.

* Bacteria: While diverse in shape, some bacteria, like cocci (round) or bacilli (rod-shaped) are fairly easily recognizable.

More Difficult:

* Nerve Cells: These are complex and varied, and identification can be challenging unless specialized staining techniques are used.

* Muscle Cells: While identifiable, they can be difficult to distinguish from other cell types without specific knowledge and staining.

Factors to Consider:

* Magnification: Higher magnification makes it easier to see details, but also makes it harder to keep the cell in focus.

* Staining: Staining techniques can help highlight specific cellular structures and make identification easier.

* Experience: The more experience you have viewing cells, the easier it becomes to recognize them.

Overall, it's important to practice viewing different types of cells under the microscope to improve your ability to identify them.