Robert Lightly Taps the Student Sitting in Front of Him

question 51

Multiple Choice

Robert lightly taps the student sitting in front of him on the shoulder.The student doesn't notice,so Robert taps harder.The minimum pressure Robert must tap such that the other student notices half of the time is called:

• A)the absolute threshold.
• B)the just noticeable difference.
• C)Weber's law.
• D)the relative threshold.

---

Definitions:

Nucleus

A membrane-bound organelle within a cell that contains most of the cell's genetic material and regulates gene expression.

Cell

The basic structural, functional, and biological unit of all living organisms, consisting of cytoplasm enclosed within a membrane.

Cytoskeleton

A network of fibers within cells that provides structure, shape, and aids in movement.

Microtubules

Cylindrical structures within the cytoplasm of eukaryotic cells that are involved in cellular processes like division, growth, and transport.