Explanation:

- Nerve Cell: These cells have a unique structure with long extensions (axons and dendrites), allowing them to transmit signals. They are not amoeboid in shape.

- Columnar Epithelial Cell: These cells are elongated and column-like, forming a protective and absorptive layer in tissues. They are not amoeboid.

- Red Blood Cell: These cells are biconcave and round, designed to carry oxygen efficiently. They are not amoeboid in shape.

- White Blood Cell: ? These cells are part of the immune system and can change shape to move through tissues, making them amoeboid.