Biology 1144 Exam III study Guide Topics on the Exam

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Biology 1144 Exam III Study Guide

Topics on the Exam:

Phyla Annelida, Arthropoda, Echinodermata & Chordata

Review the major characteristics of each phylum. These can be found on the diversity overview page

Know the following terms:





In our lecture, we covered material in addition to the info on the diversity pages for which you will be responsible:

reproductive modes of annelida - trochophore larvae of marine polychaetes, direct development of oligocheates and hirudenians

For each subphylum and/or class of arthropoda for which these items were discussed, know the characteristic sets of appendages, #appendages/segment, and tagmata (see taxonomy below)

Know these terms:



Know major anatomical features of the phyla we discussed (identify on a diagram for example)

Annelida: nephridia, heart/circulatory system, parapodia, setae, clitellum


Respiratory organs: book lungs, gills, trachea

sensory organs: seta/cheatae, compound eyes (ommatidia), simple eyes

nervous system: ventral nerve cords with commissures

excretory organs: malpighian tubules, green glands, coxal glands

circulatory system: open (except for gill circulation), hemolymph


pedicellaria, spines, ossicles

tube feet, water vascular system

bipinnaria and pluteus larvae

pentaradial symmetry


notochord, pharyngeal pouches, dorsal nerve tube, post-anal tail

Taxonomy of Phylum Arthropoda

Subphylum (SP) trilobite (extinct)

SP chelicerata : 1 pr of chelicerae (pincers or fangs), 4 pr walking appendages, no mandibles, no antennae, cephalothorax & abdomen

class pycnogonida (sea spiders)

class merostomata (horseshoe crab)

class arachnida

order aranea (spiders)

order acari (ticks & mites)

order scorpionida (scorpions)

order opiliones (daddy long legs)

order solpugida (camel spiders)

SP crustacean : 1pr appendages on every segment, 2pr maxillae, 1pr mandibles, 2 pr antennae

class branchiopoda

order Cladocera (daphnia)

class maxillopda

Subclass Cirripedia (barnacles)

class malacostraca

order isopoda (rollie-pollies)

order euphausiacea (krill)

order decapoda (lobsters, crabs, crayfish, shrimp)

SP myriapoda: 1pr antennae, 1pr mandibles, 1 or 2 pr maxillae, 1pr appendages on thorax segments, 1 or 2pr appendages on abdominal segments

class diplopoda (millipedes)

class chilopda (centipedes)

SP hexapoda : 1pr antennae, 4pr feeding appendages, 3pr walking appendages, 2 pr flight appendages, no appendages on abdomen, head, thorax, abdomen

class insecta

order coleopteran (beetles)

order Lepidoptera (butterflies, moths)

order hymenoptera (bees, ants, wasps)

order dipteral (flies, mosquitoes, gnats)

order odonata (dragonflies)

Taxonomy of chordata

SP urodhordata – tunicates

class ascidiacea (sea squirts)

class thaliacea (salps)

class larvacea (book uses appendicularia)

SP cephalochordata

amphioxous - no classes given

SP vertebrata

superclass agnatha

class myxini (hagfish)

class petromyzontida (lampreys)

superclass gnathostomata

class chondrichthyes (cartilaginous skeleton fish – sharks)

class actinopterygii (ray finned fishes)

subclass neopterygia (common fish with only a swim bladder)

subclass chondrostei (fish that retain lungs – sturgeon, gar)

class sarcopterygii (flashy finned fish – lungfish & coelacanthe)

class amphibia

order anura (frogs)

order caudata (salamanders)

order gymnophiona (caecilians)

class reptilia

order squamata (snakes & lizards)

order testudines (turtles)

order crocodilian (crocodilians)

class aves

superorder paleognathae (ostrich, kiwi)

superorder neognathae (all other birds)

order Passeriformes (perching song birds)

order falconiformes (birds of prey)

order galliformes (quail, domestic land fowl)

order anseriformes (water fowl)

class mammalian (mammals)

subclass prototheria

order monotremata (platypus)

subclass theria

infraclass metatheria – marsupials

infraclass eutheria – placental mammals

order rodentia (rodents)

order chiroptera (bats)

order carnivore (carnivores – felids, canines)

order cetacean (whales)

order primates (primates – you)

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