Which of the following is (are) unique to animals?
A) the structural carbohydrate, chitin
B) gastrulation and muscular movement
C) heterotrophy
D) flagellated spores
Answer: B
Which of the following is (are) unique to animals?
A) the structural carbohydrate, chitin
B) gastrulation and muscular movement
C) heterotrophy
D) flagellated spores
Answer: B