When animals use energy, what is always produced?
A B C D
sugar heat oxygen starch
Question: When animals use energy, what is always produced?
(A) sugar
(B) heat
(C) oxygen
(D) starch

Answer: (B) heat
Answer: (D) starch
Question: When animals use energy, what is always produced?
(A) sugar
(B) heat
(C) oxygen
(D) starch
Answer: (B) heat