To Bring Distant Objects into Focus, Mammals and Birds

question 133

Multiple Choice

To bring distant objects into focus, mammals and birds

• A) contract ciliary muscles to make the lens more round.
• B) relax suspensory ligaments attached to the lens.
• C) alter lens shape by relaxing ciliary muscles.
• D) alter lens shape by moving the lens closer to the retina.
• E) alter lens shape by moving the lens farther from the retina.

---

Definitions:

Homologous Structures

Body structures that are similar in different lineages because they evolved in a common ancestor.

Ancestry

The lineage or heritage of an individual or group, traced through generations.

Developmental Steps

Developmental steps are the stages or phases that an organism goes through as it grows and matures, often involving specific physical, cognitive, or social changes.

Vertebrate Lineages

Evolutionary branches that include all species descending from a common ancestor having a backbone or spinal column.