A personal quality is
A. only found in college graduates.
B. something that you can do.
C. only found in high school graduates.
D. a characteristic.
Answer (2)
Unlike bony fish, sharks do not have gas-filled swim bladders for buoyancy. Instead, sharks rely on a large liver filled with oil that contains squalene, and their cartilage, which is about half the normal density of bone.
Sharks do not have swim bladders; instead, they rely on a large liver filled with oil, which aids in buoyancy. This adaptation, along with their lighter cartilage skeleton, allows them to efficiently navigate their aquatic environment. Sharks propel themselves forward, which helps maintain buoyancy as they swim.
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