Which Structures Were Required for the Evolution of the Ferns

question 42

Multiple Choice

Which structures were required for the evolution of the ferns and gymnosperms?

• A) seeds and flowers
• B) megaphylls and seeds
• C) microphylls and megaphylls
• D) flowers and vascular tissue
• E) megaphylls and vascular tissue

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Definitions:

Middle Ear

Portion of the ear consisting of the tympanic membrane, the oval and round windows, and the ossicles, where sound is amplified.

Semicircular Canals

Structures in the inner ear involved in maintaining balance.

Vertigo

Equilibrium disorder that is often associated with problems in the receptors of the semicircular canals in the ear.

Tympanic Membrane

Membranous region that receives air vibrations in an auditory organ; in humans, the eardrum.