Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd

Exercise 17

Sea lions dive as deep as 600 feet into the ocean to get their catch of fish and squid. Which of the following adaptations do sea lions likely possess to help them dive for extended periods?
A) a fluid-filled hydrostatic skeleton, combined with a large heart
B) a compressible spine, combined with large eyes
C) an ability to slow their metabolic rate and high myoglobin levels in muscles
D) large flipper muscles and fur for warmth in the cold ocean