Which of the Following Is True About the Difference Between

question 43

Multiple Choice

Which of the following is true about the difference between the rods and the cones?

• A) The rods control vision in high illumination conditions, and the cones control vision in low illumination conditions.
• B) The rods are packed in an area called the fovea, and the cones are found more in the peripheral retina.
• C) There are about 120 million rods in the human eye and about 5 million cones.
• D) The only difference between the rods and the cones is physical shape.

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Definitions:

Flagellum

Long, slender cellular structure used for motility.

Eukaryote

Single- or multicelled organism whose cells characteristically have a nucleus; a protist, fungus, plant, or animal.

Protist

A diverse group of eukaryotic organisms, mostly unicellular, that are not plants, animals, or fungi, including amoebas, algae, and plasmodium.

Prokaryote

Informal term for a single-celled organism without a nucleus; a bacterium or archaeon.