Problem:
Question 1: Define what makes an animal an animal.
Question 2: Describe the fundamental changes in morphology and development that occurred as animals diversified (symmetry, cephalization, germ layers, limbs, etc.).
Question 3: Place the major lineages of animals correctly on a phylogenetic tree.
Question 4: List several examples of the diversity that animals have evolved in adaptations for senses, feeding, movement, and reproduction.
Provide a brief explanation for your answer.