Which of the following is (are) unique to animals?

Question

Quizplus · Accepted Answer

Nervous conduction and muscular movement are unique to animals and allow for specialized sensory and motor functions.

Answer: E
 Flagellated gametes are unique to animals and are used in sexual reproduction to facilitate the fusion of sperm and egg.

Note: Choices A, B, and D are not unique to animals. Cells that have mitochondria are found in both animal and plant cells. The structural carbohydrate chitin is found in fungi and some animals. Heterotrophy (obtaining energy from consuming other organisms) is found in both animals and many types of single-celled protists.

Which of the Following Is (Are) Unique to Animals