animal kingdom invertebrate phylum. porifera the sponge symmetry? germ layers? body cavity? ...
TRANSCRIPT
![Page 1: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/1.jpg)
Animal KingdomInvertebrate Phylum
![Page 2: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/2.jpg)
Porifera
![Page 3: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/3.jpg)
The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics:
Choanocytes Amoeboid cells Spicules/spongin Mostly Asexual reproduction sessile
![Page 4: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/4.jpg)
Cnidarians
![Page 5: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/5.jpg)
anthozoa, hydrozoa, scyphozoan Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics
Mesoglea Cnidocytes, nematocysts Gastrovascular system 2 body forms: polyp and medusa
![Page 6: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/6.jpg)
Nemertea and Platyhelminthes
![Page 7: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/7.jpg)
Ribbon worms and flatworms Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics
Proboscis apparatus Free living or parasitic flatworms Cephalization Gas exchange through diffusion
![Page 8: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/8.jpg)
Nematoda and Rotifera
![Page 9: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/9.jpg)
Roundworms and rotifers Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics
parasitic roundworms – Ascaris, Trichinella, filarial worms – dogs (heartworm) humans (elephantiasis)
Crown of cilia – corona, locomotion
![Page 10: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/10.jpg)
![Page 11: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/11.jpg)
Protostomes Deuterostomes Mulluscs, annelids,
arthropods Spiral and determinate
cleavage Blastopore is mouth Coelom forms by a
splitting of the mesoderm
Echinoderms and chordates
Radial and indeterminate
Blastopore is anus Coelom forms by
outpocketing of primitive gut
![Page 12: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/12.jpg)
Benefits of coelom Freer body movements – outer wall
independent of gut Ample space allows for growth of organs Fluid protects organs from damage Storage for reproductive, digestive wastes
prior to being expelled Hydrostatic skeleton – muscle contraction
against fluid in cavity
![Page 13: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/13.jpg)
Mollusca
![Page 14: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/14.jpg)
mulluscs Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics
3 part body plan (mantle, foot, visceral mass) Open circulatory system in most 3 main classes
Bivalves Gastropoda cephalopoda
![Page 15: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/15.jpg)
Annelids
![Page 16: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/16.jpg)
Segmented worms Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics
Marine worms, earth worms and leeches Setae – bristles that anchor the worm hermaphroditic
![Page 17: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/17.jpg)
Arthropods
![Page 18: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/18.jpg)
Jointed appendages Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics
Exoskeleton of chitin, molt Segmentation is modified for specialization Well developed nervous system Variety of respiratory organs metamorphosis
![Page 19: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/19.jpg)
Further classification of arthropods3 subphyla of arthropoda1. Crustacea – crayfish, shrimp and craps
Most aquatic, hard exoskeleton, compound eyes and 5 pair of appendages.
2. Uniramia – centipedes, millipedes and insects Most live on land and breathe through trachea, thorax and abdomen
have only 1 pair of appendages
3. Chelicerata – horseshoe crabs, spiders ticks and mites Live in all environments, first pair of appendages are pinchers
(chelicerae), 2nd pair pedipalps (feeding) Fused head and thorax, cephalothorax
![Page 20: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/20.jpg)
Echinoderms
![Page 21: Animal Kingdom Invertebrate Phylum. Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697bfec1a28abf838cb845a/html5/thumbnails/21.jpg)
Spiny skin Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics
Primarily bottom dwellers Larvae are free swimming filter feeders with bilateral
symmetry Endoskeleton made of spiny calcium rich plates called
ossicles Water vascular system - locomotion