Imagine That Biologists Have Discovered an Animal That Has Eyes

question 146

Multiple Choice

Imagine that biologists have discovered an animal that has eyes very similar to human eyes, but that the only receptor cells in the retina are rods; there are no cones. Based on what is known about human vision you might expect that this animal would

• A) have poor vision in low illumination.
• B) have no colour vision.
• C) have poor peripheral vision.
• D) be able to detect extremely fine details.

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Definitions:

Temporal Bone

A paired bone located at the sides and base of the skull, playing a key role in protecting the brain and supporting the facial structures.

Parietal Bone

One of the two bones forming the sides and roof of the cranium.

Lambdoid

Refers to the lambdoid suture, a dense, fibrous connective tissue joint that unites the parietal bones with the occipital bone in the human skull.

Coronal

Pertaining to the frontal plane that divides the body into anterior and posterior (front and back) sections.