What do mammals use to conserve body heat?
four limbs Energy. energy sarcasm skin keratin sawdust groceries
A B C D E F G H
Hair and feathers are both made of keratin.
mammals conserve body heat with keratin
What do mammals use to conserve body heat? (A) four limbs (B) Energy. (C) energy (D) sarcasm (E) skin (F) keratin (G) sawdust (H) groceries