Salmon Returning to Spawn in Their Native Stream Require Extreme

Multiple Choice

Salmon returning to spawn in their native stream require extreme endurance for the journey.An examination of the muscles used to perform this activity would show that they

A) have low reserves of glycogen (metabolic fuel) .
B) have high levels of ATPase activity.
C) are poorly supplied with blood vessels.
D) have few mitochondria.
E) have high levels of myoglobin.