What is an explanation for the pectoral or breast meat of ducks being very dark in colour?
A) Ducks employ intermediate muscle fibres for swimming and flying.
B) Ducks use their wings for very short flights and need fast muscle fibres to power their take- offs.
C) Ducks fly long distances and need myoglobin- rich slow muscle fibres to power high- endurance flights.
D) Ducks are primarily swimmers and therefore do not need breast muscles full of "white meat."
Correct Answer:
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