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6 Cards in this Set
- Front
- Back
5 classes of echinodermata and examples?
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1. Asteroidea (starfish)
2. Echinodea (sea urchins/sand dollars) 3. Holothuroidea (sea cumcumbers) 4. Ophnroidea (brittle stars) 5. Crinoidea (sea lillies, feather stars) |
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all the MAJOR GROUPS/ subgroups/ and Classes of arthropoda?
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1. TRILOBITOMORPHA (trilobites)
2. CHELICERATA a. Arachnida (scorpins/spiders) b. Xiphosura (horseshoe crab) 3. MANDIBULATA (with jaw) i. crustacean (crayfish) 4. MYRIAPODA a. Chilopoda (1 pair of legs per segment, centipedes) b. Diplopoda (2 pairs of legs per segment, millipedes->poisionous) 5. HEXAPODA a. Insecta (3 pairs of legs, cockroaches, etc.) |
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Describe following about Starfish:
0. Which phylum? 1. Special Features 2. Water Vascular System 3. Digestive System 4. Circulatory/Respiratory System 5. Nervous System 6. Reproduction |
0. Echinodermata
1. exculsively marine only coelomic invertebrate w/radial symmetry *larvae=bilateral endoskeleton (calcareous plates) covered by epithelium no excretory or respiratory organs oral->aboral pedicellariae (pinchers) ->remove debris/parsites 2. in aboral to oral direction madreporeite (mother pore) -> stone canal -> ring canal ->radial canals -> lateral canals -> ampulla ->tube feet (oral side) 3. mouth (oral side) -> cardiac stomach -> pyloric stomach -> digestive/hepatic/pyloric ceaca -> short intestines-> a)rectal ceaca ->anus (aboral) OR b)WVS->body 4. open, WVS circulate coelomic fluid, gases diffuse through dermal branchiae, waste diffuses through epithelium 5. no cephalization, speical sense organs, nerves throughout arms & central disk 6. dioecious, eggs-orange/salmon color, sperm-white |
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special features about the phylum Arthropoda?
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1.segmentation=fusion=function=tagmatization
2. bilateral 3. cephalization in head region -> paired ventral nerve cord 4. chitinous exoskeleton-> protection, attachment points to muscles, etc 5. joint appendages 6. must molt to grow -> lose exoskeleton |
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Describe following about Insecta:
1. Which Major Group? 2. Which Phylum? 3. development 4. circulatory 5. respiratory 6. digestive 7. execretory 8. reproductive 9. nervous system |
1. Hexopoda
2. Arthopoda 3. a) Hemimetabolous (direct, incomplete): egg->nymph (small verison of adult)->adult (sexually active) b) Holometabolous (indrect, complete): egg->larvae->pupa (cocoon)->adult 4. open, dorsal blood vessel, hemolymph w/ameobocytes-respiratory pigments 5. not connected to circulatory, no blood carrying air, air->spiracles(back)->trachea->tracheoles (silver tubes)->body 6. Foregut: mouth->esophagus->crop->gizzard Midgut:digestive caeca (w/digestive enzymes) Hindgut: malpighiam tubules->ileum->colon->rectum->anus 7. malpighian tubules=empties waste into lumen of hindgut 8. male=testes, vas deferens, accessory glands, conglobate gland female=ovaries, accessory glands 9. ventral, double stranded ->ganglia |
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Describe following about Crustacea:
1. this is a class or subgroup or group? 2. which phylum? 3. special features 4. respiratory 5. reproductive 6. digestive 7. excretory 8. circulatory |
1. subgroup
2. arthropoda 3. swimmerets: Male->1st&2nd pair modified for sperms transfer, Female->2nd pair have holes to release eggs 4. gills->linked to circulatory 5. dioecious 6. mouth->esophagus->cardic stomach (gastric mill-grinding)->pyloric stomach->midgut->intestines->anus 7. green gland->located @bases of antenna, gastrolith->storage for calcium for exoskeleton 8. open, heart is dorsally located in thorax and have osta (holes), hemolymph w/hemocyanin-respiratory pigment pathway: heart->arteries->tissues sinuses (-O2)->central sinus->gills (+O2)->paricardial sinus->heart |