Biology 2- Animal Science 1.3

phylum ctenophora

comb jellies, propel through water via cilia, mostly hermaphroditic

phylum acoelomorpha

acoelomorphic worms, triploblastic and bilaterally symmetric, lack coelom, small carnivores 

aceolomates have ______, coelomates have _____

no enclosed body cavity, enclosed body cavity lined with mesoderm

ectoderm, mesoderm, endoderm

skin, muscles and organs, gut 

class tubellaria

phylum platyhelmithes, free living, flatworms with broad bodies, lack specialized structures so body must be moist, 

class cestoda

phylum platyhelminths, parasitic tapeworms, live in gut, no mouth or digestive tract, hermaphroditic 

phylum rotifera

rotifers, moist soils and mosses, filter feed, coelomates

class polycheata

phylum annelida, sand worm, many setae, sand burrowers, mixed reproduction

class oligochaeta

phylum annelida, earthworm, few setae, less marine, contracting movement

class hirudinea

phylum annelida, leeches, ectoparasites, low segmentation and setae, sexual reproduction

class polyplacophora

phylum molluska, chitons, marine plated

class gastropoda

phylum molluska, snails, have stomach foot, shell apart from slugs

class bivalvia

phylum molluska, clams, oysters, two shells hinged, suspension and filter feeders, sexual external fertilization

class cephalopoda

phylum molluska, octopus, brain and well developed eyes, “Shell” is beak, internal fertilization and eggs

subphylum chelicerata

subphylum of arthropods, spiders scorpions and ticks, have chelicerae, feeding structures, pedipalps to catch prey, no metamorphosis

class merostomata

in subphylum chelicerata, horseshoe crab

class arachinida

in subphylum chelicerata, spiders, ticks, scorpions

subphyla crustacea

subphylum of arthropods, shrimp, lobster, crabs and more,

subphylum myriapoda

subphylum of arthropods, centipedes, millipedes

class diplopoda

in arthropod subphylum myriapoda, millipedes, 2 pairs of legs, slow moving herbivores

class chilopoda

in arthropod subphylum myriapoda, centipedes, carnivore hunters, 1 pair legs a body segment

subphylum hexapoda

arthropod subphylum, three part body plan

class insecta

arthropods in subphylum hexapoda, insects, successful, most undergo metamorphosis, 3 segments of head, thorax and abdomen, mostly lay eggs, internal fertilization 

order coleoptera

in class insecta, beetles, sheath wings, 25% of all animals species, many hemimetabolous

order lepidoptera

in class insecta, scale winged, butterflies and moths

order diptera

in class insecta, two winged, flies 

order hymenoptera

in class insecta, membrane winged, ants wasps and bees

order hemiptera

in class insecta, half winged, “true bugs” aphids and cicadas

order orthoptera

in class insecta, straight winged, grasshoppers and crickets

class asteroidea

in phylum echinodermata, sea stars, arms from central disk, predators and scavengers, two sexes and external fertilization eggs

class echinoidea

in phylum echinodermata, sea urchins have beak mouths, and sand dollars, globe bodies that lack distinct arms, spiny herbivores, or for sand dollars suspension feeders

class ophiouroidea

in phylum echinodermata, brittle stars, large abundant class, 5 long rays, central disk, don’t move on tube feet, suspension feeders

class crinoidea

in phylum echinodermata, sea lilies and feather stars, suspension feeders with upward mouths, 

class holothuridea

in phylum echinodermata, sea cucumbers, soft bodies, reduced ossicles, endoskeletons, eviscerate to defend self

subphylum vertebrata

spinal column replaces notochord 

class agnatha

in phylum chordata, subphylum vertebrata, lamprey and hagfish, jawless fish, no appendages, lack full vertebral column, 

class chondrichthyes

in phylum chordata, subphylum vertebrata, cartilaginous fish, sharks and rays, have jaws, first to develop teeth, lack operculum and swim bladder, internal fertilization

class osteichthyes

in phylum chordata, subphylum vertebrata, bony fish, diverse and successful, have operculum door structure and swim bladder, lateral line, external fertilization

class amphibia

in phylum chordata, subphylum vertebrata, “two lives”, frogs, salamanders, can live but not reproduce on land, lungs and gas exchange, can have internal or external fertilization

order anura

class amphibians without tails, frogs and toads, live near water and metamorphosize

order urodela

class amphibians, salamanders, elongated bodies

class reptilia

in phylum chordata, subphylum vertebrata, reptiles, aminiotic egg for terrestrial habitats, internal fertilization, pokilothermic and body temp depends on environment

order chelonia

in phylum chordata, subphylum vertebrata, turtles and tortoises, hard shell, bony plates fuse to vertebrae, turtles more aquatic and carnivorous, oviparous

order sqaumata

in phylum chordata, subphylum vertebrata, lizards and snakes, kinetic skulls

suborder sauria

order sqaumata, lizards

suborder serpentes

order squamata, snakes

order crocodilia

in phylum chordata, subphylum vertebrata, crocodiles, alligators, closer related to birds than reptiles, complex heart, oviparous

class aves

in phylum chordata, subphylum vertebrata, birds, feathered, wings and hollow bones, oviparous, fast metabolism, complex heart and efficient lungs

order passeriformes

class aves, songbirds, perching and most of birds 

strigiformes

class aves, owls,

class mammalia

in phylum chordata, subphylum vertebrata, mammals, have mammary glands and milk, hair, specialized teeth, large skulls, have placenta (some) to allow nutrients to get from mother to child, endothermy (self regulate body temp), complex heart, can’t digest cellulose on own

subclass protheria

mammals, platypus, lay eggs and no placenta

subclass metatheria

mammals, marsupials, kangaroo, birth underdeveloped young 

subclass eutheria

mammals, placental

order rodentia

mammal subclass eutheria, rodents, mice

order primates

mammal subclass eutheria, monkeys and apes, humans, opposable thumbs and grasping, binocular vision

suborders of primates

prosimians, lemurs, smaller brained; anthropoids, monkeys, tails; hominoids, oragutans, gorrila, human, great apes, bipedal