In the Section "Investigating Life: Sniffing Out the Origin of Feathers",which

question 72

Multiple Choice

In the section "Investigating Life: Sniffing Out the Origin of Feathers",which of the following is true of endotherms in comparison to ectotherms?

• A)They have a higher metabolic rate and oxygen consumption.
• B)They have a lower metabolic rate and oxygen consumption.
• C)They have a higher metabolic rate and lower rate of oxygen consumption.
• D)They have a lower metabolic rate and higher rate of oxygen consumption.
• E)They have equal metabolic rate and oxygen consumption.

---

Definitions:

Magnetic Field

A region around a magnetic material or moving electric charge within which the force of magnetism acts.

Synchronous Speed

The speed of the rotating magnetic field of an AC induction motor.

Squirrel-Cage Rotor

The rotor of an AC induction motor constructed by connecting metal bars together at each end.

Rotor Bars

Conductive bars typically found in the rotor of an induction motor, which carry current to produce a magnetic field that interacts with the stator field.