Vertebrate Zoology- Exam 1; Ch 1-4, 6 & 7 |339 questions| with correct answers

Why doesn't phylogenetic systematics have a fixed number of hierarchical categories like Linnaean systematics? CORRECT ANSWER it is variable, not for sure What aspect of evolution does phylogenetic systematics represent more clearly than Linnaean systematics does? CORRECT ANSWER Evolutionary history Non-amniotes CORRECT ANSWER lay eggs in water Hagfishes and lampreys: CORRECT ANSWER Myxiniformes and Petromyzontiformes (Agnathans) Sharks, rays, and ratfishes, cartilaginous fishes: CORRECT ANSWER Chondrichthyes Bony fishes: CORRECT ANSWER Osteichthyes Salamanders, frogs, and caecilians: CORRECT ANSWER Urodela, Anura, and Gymnophiona amniotes CORRECT ANSWER vertebrates with extraembryonic membranes sauropsids CORRECT ANSWER reptiles and birds synapsids CORRECT ANSWER mammals