White-Crowned Sparrows Can Only Learn the "Crystallized" Song for Their

question 53

Multiple Choice

White-crowned sparrows can only learn the "crystallized" song for their species by

• A)listening to adult sparrow songs during a sensitive period as a fledgling, followed by a practice period until the juvenile matches its melody to its memorized fledgling song.
• B)listening to the song of its own species during a critical period so that it will imprint to its own species song and not the songs of other songbird species.
• C)practicing as a fledgling until the innate species-specific song becomes perfected.
• D)performing the crystallized song as adults when they become sexually mature, as the song is programmed into the innate behaviour for the species.
• E)observing and practising after receiving social confirmation from other adults at a critical period during their first episode of courtship behaviour.

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Definitions:

Afferent Arteriole

A small artery that leads toward the capillaries of the glomerulus in the kidney, playing a key role in the filtration of blood.

Efferent Arteriole

A small blood vessel that carries blood away from the glomerulus of the kidney to the peritubular capillaries, playing a key role in regulating blood pressure and filtration rate in the kidney.

Renal Vein

A vein that carries purified blood away from the kidneys back to the heart.

Nucleic Acid Metabolism

The set of biochemical processes responsible for the synthesis, degradation, and regulation of nucleic acids (DNA and RNA) in living organisms.