Bi 212, Lecture 5 Phylum Arthropoda. Phylum Arthropoda: “jointed foot”

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Bi 212, Lecture 5 Bi 212, Lecture 5 Phylum Arthropoda

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Transcript of Bi 212, Lecture 5 Phylum Arthropoda. Phylum Arthropoda: “jointed foot”

  • Bi 212, Lecture 5Phylum Arthropoda

  • Phylum Arthropoda:jointed foot

  • Evolutionary relationshipsand HOX genes

  • Basic Arthropod FeaturesPaired, jointed appendagesFunctions: Locomotion; feeding; protectionjoints allow for flexibility

    SegmentationSome: segments all similarMost: segments combined into specialized body regionsExample: Insects have 3 regions: head, thorax and abdomen

    ExoskeletonKey material: chitinSame materials also in mouthparts, wings, eye lens Key function of exoskeleton?Exoskeleton is molted

  • Focus on MoltingFunction: growthNew exoskeleton built under oldHow is this possible, since new exoskeleton is larger than the old one?RisksStrategy of female crabs to reduce riskSome arthropods continue to molt and grow throughout their lives.

  • Subphylum CrustaceaLobsters, crabs, shrimp, barnacles, copepods, etc..

  • Subphylum CrustaceaAntennaeHow many pairs?Body regionsCephalothorax & abdomenCalcium carbonate in exoskeletonGillsCompound eyes Feeding modesLobsters and crabsBarnaclesKrill!

  • Antarctic krillEuphausia superba

  • Subphylum Unirama(Hexapoda & Myriapoda)Insects, centipedes, millipedesThree distinct body regionsName them!Head capsuleSingle pair of antennaeCompound eyesFeeding modes (examples)Chewing (wasp)Piercing/sucking (giant water bug)

    Dennis Kunkel Photos: www.microscopy-uk.org

  • Subphylum Chelicerata (Cheliceriformes)Spiders, mites, scorpions, horseshoe crabsAntennaeHow many pairs?Body regions Cephalothorax & abdomenEyes: type?Specialized feeding structuresPedipalpsCheliceraeSucking stomach

  • Body planFeeding/Digestive systemModes of feeding in different groups (already discussed)CompleteCirculation/gas exchangeOpen circulatory systemRespiration structures and systems Crustacea: gillsUniramia: tracheal system. CARRIES OXYGEN AND CO2Chelicerata: tracheal system, book gills and book lungs

  • Water/ion balance and ammonia excretionCrustacea: gills and antennal (or green) glandsUniramia and Chelicerata: Malpighian tubulesNervous systemBrain (=cerebral ganglia)Ventral nerve cord (paired, fused)Ganglia: one per segment or fewer (consolidated)Body plan

  • Body planReproductive systems Usually internal fertilizationSpermatophoresSperm storage

  • ReproductionInternal fertilization (many)SpermatophoresSperm storagePhoto: www.guclehmann.dewww.livescience.com


Phylum Arthropoda. Protostome Eucoelomate Ecdyzoa Jointed Appendages Thick, chitin exoskeleton Tagmata – grouping/fusion of segments.

Phylum Arthropoda. Protostome Eucoelomate Ecdyzoa Jointed Appendages Thick, chitin exoskeleton Tagmata – grouping/fusion of segments.

Phylum Arthropoda: jointed appendages

Phylum Arthropoda: jointed appendages

GENERAL PROPERTIES OF ARTHROPODS Phylum Arthropoda (jointed  feet) 

GENERAL PROPERTIES OF ARTHROPODS Phylum Arthropoda (jointed  feet) 

PHYLUM ARTHROPODA “JOINTED LEGS”. General Characteristics Largest phylum (75% all animals) Terrestrial,…

PHYLUM ARTHROPODA “JOINTED LEGS”. General Characteristics Largest phylum (75% all animals) Terrestrial,…

Invertebrates - Somma Science pores throughout their body, are from the phylum Porifera. Crabs and lobsters, with jointed appendages, are from the phylum Arthropoda. Phylum Meaning

Invertebrates - Somma Science pores throughout their body, are from the phylum Porifera. Crabs and lobsters, with jointed appendages, are from the phylum Arthropoda. Phylum Meaning

Phylum Arthropoda ‘Jointed Feet’ - Mrs. Lait's … Arthropoda ‘Jointed Feet’ Examples: Lobsters, Crayfish, Crabs, Shrimp, Barnacles, Spiders, Insects, Millipedes, Centipedes,

Phylum Arthropoda ‘Jointed Feet’ - Mrs. Lait's … Arthropoda ‘Jointed Feet’ Examples: Lobsters, Crayfish, Crabs, Shrimp, Barnacles, Spiders, Insects, Millipedes, Centipedes,

Phylum Arthropoda. 1.Phylum Arthropoda –means “jointed feet” 2.Characteristics a. Segmented bodies b. Jointed appendages c. Exoskeleton.

Phylum Arthropoda. 1.Phylum Arthropoda –means “jointed feet” 2.Characteristics a. Segmented bodies b. Jointed appendages c. Exoskeleton.

Ch. 36 - Arthropods Phylum: Arthropoda Means jointed legs 75% of all animals belong to this phylum Insects, lobsters, crabs, spiders, millipedes, & centipedes.

Ch. 36 - Arthropods Phylum: Arthropoda Means jointed legs 75% of all animals belong to this phylum Insects, lobsters, crabs, spiders, millipedes, & centipedes.

Test #2 Material Phylum: Arthropoda. Phylum: Arthropoda (Crustaceans, Spiders, and Insects General Characteristics Exoskeleton is segmented and has jointed.

Test #2 Material Phylum: Arthropoda. Phylum: Arthropoda (Crustaceans, Spiders, and Insects General Characteristics Exoskeleton is segmented and has jointed.

Phylum Arthropoda The Arthropods Arthro = jointed, Pod = foot Source.

Phylum Arthropoda The Arthropods Arthro = jointed, Pod = foot Source.

Phylum Arthropod Echinoderm PL€¢ Phylum Arthropoda characteristics: – Segmented bodies – Bilateral Symmetry – Jointed legs – Exoskeleton ... • Phylum Echinodermata meaning

Phylum Arthropod Echinoderm PL€¢ Phylum Arthropoda characteristics: – Segmented bodies – Bilateral Symmetry – Jointed legs – Exoskeleton ... • Phylum Echinodermata meaning

4. Review E5 Insects and Mites - pesticidecert.dl.umn.edu · What defines Phylum Arthropoda? Phylum Arthropoda means jointed leg Class Crustacea include sowbugs, lobsters. Class Arachnida,

4. Review E5 Insects and Mites - pesticidecert.dl.umn.edu · What defines Phylum Arthropoda? Phylum Arthropoda means jointed leg Class Crustacea include sowbugs, lobsters. Class Arachnida,

Kingdom Animalia, Food Chain Consumers Phylum Arthropoda, exoskeleton, segmented, jointed appendages Class Insecta Order Hymenoptera, membranous wings,

Kingdom Animalia, Food Chain Consumers Phylum Arthropoda, exoskeleton, segmented, jointed appendages Class Insecta Order Hymenoptera, membranous wings,

Phylum Arthropoda “jointed foot” Chitonous exoskeleton Open circulatory system Polyphyletic or monophyletic? –Merostomata, Crustacea, Trilobites – biramous.

Phylum Arthropoda “jointed foot” Chitonous exoskeleton Open circulatory system Polyphyletic or monophyletic? –Merostomata, Crustacea, Trilobites – biramous.

Phylum Arthropoda “jointed feet”. Basic Info Largest of all Phyla Include: –Insects –Arachnids –Crustaceans.

Phylum Arthropoda “jointed feet”. Basic Info Largest of all Phyla Include: –Insects –Arachnids –Crustaceans.

1 Phylum Arthropoda. 2 Jointed Appendages 3 Number of species Arthropoda Echinodermata Ciliophora Chordata Mollusca Platyhelminthes Nematoda Porifera.

1 Phylum Arthropoda. 2 Jointed Appendages 3 Number of species Arthropoda Echinodermata Ciliophora Chordata Mollusca Platyhelminthes Nematoda Porifera.

PHYLUM: ARTHROPODA arthro – Greek for JOINTED poda – Greek for FOOT JOINTED FEET!!!

PHYLUM: ARTHROPODA arthro – Greek for JOINTED poda – Greek for FOOT JOINTED FEET!!!

Phylum Arthropoda :

Phylum Arthropoda :

Phylum Arthropoda Notes - Sardis Secondary School Arthropoda_1.pdf · 5/14/2013 1 Phylum Arthropoda Biology 11 What are Arthropods? Segmented invertebrates Jointed appendages Exoskeleton

Phylum Arthropoda Notes - Sardis Secondary School Arthropoda_1.pdf · 5/14/2013 1 Phylum Arthropoda Biology 11 What are Arthropods? Segmented invertebrates Jointed appendages Exoskeleton

Grasshopper Arthropod: “Jointed Leg”. Classification Common Name: Grasshopper Scientific Name: Romalea Phylum: Arthropoda Class: Insecta Other Classification:

Grasshopper Arthropod: “Jointed Leg”. Classification Common Name: Grasshopper Scientific Name: Romalea Phylum: Arthropoda Class: Insecta Other Classification: