Choose the One Most Appropriate Letter for Each

question 22

Multiple Choice

Choose the one most appropriate letter for each.
-birds

• A)cartilaginous skeleton; jaws
• B)reptile with four-chambered heart
• C)separate openings for the urinary, reproductive, and excretory systems
• D)legless amphibian
• E)invertebrate chordate; no metamorphosis
• F)endotherm with feathers
• G)limbless reptile
• H)most primitive fishes with jaws; extinct
• I)modern-day parasitic jawless vertebrate
• J)North America's only native marsupial
• K)adults are barrel-shaped and secretes a covering of polysaccharides
• L)egg-laying mammal
• M)swim bladder for buoyancy
• N)larvae typically have gills and develop lungs as they mature

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Definitions:

Rotates

To turn or revolve around an axis or a center.

Facial Nerve

The seventh cranial nerve responsible for controlling most of the muscles of facial expression and conveying taste sensations from the anterior two-thirds of the tongue.

Extrinsic Eye Muscles

A group of six muscles that control the movements of the eye and are responsible for holding the eyes in the orbits.

Abducens Nerve

The sixth cranial nerve, responsible for controlling the lateral rectus muscle of the eye, which abducts the eyeball (moves it outward).