Which of the Following Features Does Not Characterize Warm-Blooded Animals

Multiple Choice

Which of the following features does not characterize warm-blooded animals?

A) Use panting or sweating to reduce heat
B) Use fur or hair or feathers to reduce heat loss
C) Circulate blood to outer extremities to enable heat loss
D) Birds use feathers to reduce heat loss
E) Allow body temperatures to be governed by environmental temperatures