Joe Is Unable to See Blues and Yellows but Can

question 286

Multiple Choice

Joe is unable to see blues and yellows but can distinguish between reds and greens. He has

• A)only cones in his retina and no rods.
• B)an extremely rare form of color weakness.
• C)visual agnosia.
• D)only rods in his retina and no cones.

---

Definitions:

Porosity

The measure of how much of a rock is open space, which could be filled by liquids or gases.

Igneous Rocks

Geological formations that originate from the solidification and cooling of molten rock materials.

Porosity

The measure of empty spaces in a material, indicating its ability to hold fluid.

Permeability

The measure of a material's ability to allow fluids to pass through it, often related to the porosity and texture of the material.