BIOL 1202 – 60 Exam Questions on Animal Phyla, Classes & Evolutionary Traits – 2025 – Louisiana State University

This expert-verified document includes 60 classification-based multiple-choice questions designed for BIOL 1202 Exam 4 at Louisiana State University, academic year 2025. It comprehensively reviews key animal phyla and vertebrate classes, emphasizing evolutionary features, body plans, symmetry, reproduction strategies, and functional adaptations. It is structured for students preparing for exams covering invertebrate and vertebrate diversity. The content starts with lower invertebrates like Porifera (sponges) and Cnidaria (jellies, corals), focusing on their feeding methods, symmetry, and body forms (polyp and medusa). It continues with Platyhelminthes, Rotifers, Mollusks, Annelids, and Arthropods, noting major traits like segmentation, coelomate development, and exoskeletons. The document then explores Echinoderms (with radial symmetry and a water vascular system) and Chordates, including all defining features: notochord, pharyngeal slits, dorsal nerve cord, and post-anal tail. Within Chordata, the material distinguishes among major subphyla and classes: Myxini (hagfish), Petromyzontida (lampreys), Chondrichthyes (cartilaginous fish), and Osteichthyes (bony fish). Students are further guided through the evolutionary shift to tetrapods and amniotes, including Amphibians (e.g., frogs, salamanders), Reptiles (including lepidosaurs and archosaurs), and Mammals (monotremes, marsupials, eutherians). Each group is paired with its physiological and reproductive adaptations, helping students understand evolutionary lineage and taxonomy. This document is ideal for biology students needing a comprehensive, classification-focused review of the animal kingdom for exams. Relevant for: – Students in Biology, Zoology, Veterinary Science, Ecology, or Environmental Science – Courses such as General Biology II, Animal Biology, or Evolutionary Biology Keywords: animal phyla, porifera, cnidaria, flatworms, platyhelminthes, rotifers, mollusca, annelida, arthropoda, echinodermata, chordata, notochord, dorsal nerve cord, myxini, lamprey, shark, chondrichthyes, osteichthyes, bony fish, actinopterygii, sarcopterygii, coelacanth, lungfish, amphibians, reptiles, mammals, monotremes, marsupials, eutherians, amniotes, tetrapods, vertebrates, classification, BIOL 1202, LSU