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62 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Meaning of vermiform |
Worm shaped |
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What phylum is the first coelomate phylum? |
Annelidia |
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Meaning of metamerism |
Segmented. Homonomous metamerism is repeated segments of the same type |
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External Characteristics of annelids |
Metamerism Setae or chaetae Parapodia |
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What are metanephridia? |
Kidneys in every segment of an animal. Found in annelida. |
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What kind of circulatory system do annelids have? |
Closed. They use hemoglobin, some with green blood |
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Phylum with the largest coelom compared to body volume? |
Phylum annelida |
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How do annelids move? |
Crawl Swim |
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How do you link mollusks and annelids? |
Trocophore larva, which looks almost identical between the two phyla. Both have segmentation |
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Classes of annelida |
Polychaeta - many setae Oligochaeta-few setae Hirudinea |
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Characteristics of class polychaeta |
Well developed head Antennae called cirri Parapodia Types: tubeworm, sandworm, palalo worm, fireworm, christmas tree worm |
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What is perglottids? |
Each segment has a reproductive system. Seen in palalo worm. |
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Characteristics of class oligochaeta |
Few setae Earthworms Poorly developed head Respiration by diffusion, requiring moist skin Clitellum with reproductive organs No larval stage Monoecious |
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Characteristics of class hirudinea? |
Leeches Blood sucking parasites Some carnivorous Coelom filled with mesenchyme Usually no setae Clitellum Can preserve blood for a year Open circulatory system- hemocoel |
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Largest animal group phylum? |
Arthropods. They are found in every kind of habitat and effect pollination. Most significant. |
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What kind of metamerism do arthropods have? |
Heteronomous. Regions split into tagma |
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What are the tagma in arthropods? |
Head Thorax Abdomen |
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Most common skeletal system? |
Exoskeleton |
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Least specialized tagma? |
Abdomen |
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Exoskeleton and musculature of arthropods? |
Cuticle with chitin Epidermis Flexors/extensors Articulators |
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Excretory systems in arthropods? |
Malphighian tubules -most common. Absorbs fluids to rid of waste Green gland- found in head |
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Respiratory systems in arthropods |
Gills Book lungs Tracheae with spiracles -most common. In abdomen. |
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Circulatory system in arthropods |
Open, but very efficient Heart with ostia and hemocoel- most common |
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Arthropod coelom type |
Coelomate but degenerate |
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Another term for molting |
Ecdysis |
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Hormonal control in arthropods |
Ecdysome for molting Molt inhibiting hormone |
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Where is ecdysome found in arthropods? |
Y organ Prothoracic gland- insects |
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Where is molt inhibiting hormone found? |
X organ -eye stalks |
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Examples of continuous vs discontinuous growth |
Disontinuous- exoskeleton with molting Continuous- endoskeleton |
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Most common type of eye in arthropods |
Compound eye |
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Appendage classification? |
Biramous- 2 appendages per segment Uniramous- one appendage per segment. Most common. |
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Classification in arthropods |
Chelicerae- fangs Pedipalps- tongue foot Mandibles - jaw. Most common Antennae |
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Subphylum trilobitomorpha characteristics? |
Extinct Biramous One pair antennae |
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Subphylum chelicerata body plan |
Prosoma- cephalothorax Opisthoma Telson Chelicerae and pedipalps |
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How many pairs of appendages in chelicerata? |
4 pairs |
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Chelicerata respiration? |
Book lungs Gillw Trachae |
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Classes of chelicerata |
Arachnida Merostomata Pycnogonida |
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Class arachnida traits |
Terrestrial Chelicerae with fangs Web building |
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What is silk made of? |
It is a protein from the spinerette gland |
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Class merostomata traits |
Aquatic Examples: horseshoe crab, giant water scorpion (extinct) |
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Class pycnogonida traits |
Sea spiders 4 leg pairs Ovigerous legs (male)- carry eggs Organs extend into legs |
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Subphylum crustacea segments |
Cephalothorax: Eye 1st antennae ( antennules) 2nd antennae 1st and 2nd maxillae Thoracic: 1-3 maxillipeds Chileped Pereiopods Abdomen: Pleopods (swimmerettes) Tail (telson, uropods) |
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Larval form of crustacea |
Nauplius Zoea Megalops |
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Class and orders in subphylum crustacea |
Class crustacea Orders: Copepoda Cirripedia Isopoda Decapoda |
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Order copepoda traits |
Planktonic Abundant |
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Order cirripedia traits |
Barnacles Fouling Sessile Marine Some Symbiotic |
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Order isopoda traits |
Marine except pill bug Largest group of crustacea |
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Order decapoda traits |
Large group Crabs, lobsters, shrimp |
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Subphylum uniramia classes |
Insecta Chilopoda-centipedes Decapoda- millipedes |
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Insecta body plan |
Head Thorax Abdomen |
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Intermediate molt stages prior to adult stage in insects |
Instars. Typically 5-8 instars before adulthood. |
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Name for a species of insect that reach adulthood without metamorphosis |
Ametabolous |
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What does it mean to be in the group apterygota? |
No wings or metamorphosis |
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Are most insects metabolous? |
Yes. |
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What does pterygota mean? |
Have wings. May undergo a partial or incomplete metamorphosis |
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What is the name for a partial or incomplete and complete metamorphosis? |
Hemimetabolous - incomplete Holometabolous - complete Ametabolous - no metamorphosis |
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Example of ametabolous/apterygota |
Silverfish Bristletail |
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What kind of metamorphosis do grasshoppers have? |
Hemimetabolous- incomplete Exopterygota with nymphs - externally developing wings. No larval stage. |
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What is endopyerygota? |
Wings develop internally. Larval, pupal phase. Insect with complete metamorphosis. |
Butterfly |
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Class of millipedes |
Diplopoda. Have diplosegments. |
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Class of centipedes |
Chilopoda. Poison cland Repugnatorial gland |
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Phylum onychophora characteristics |
Terrestrial worms resembling annelids and arthropods. Links annelid and arthropods *Traits off ppt |
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