Annelids arthropods echinoderms

Annelids arthropods echinoderms - BSC 2011L Animal Taxonomy...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: BSC 2011L Animal Taxonomy (cont.) Phylum Annelida  Segmented worms S Circular and longitudinal muscles work against fluid filled coelom to produce changes in width and length S Digestion complete S Circluation closed (5 lateral hearts) Phylum Annelida  Class Oligiochaeta Earthworms Found in soil Can reach 3 meters! Phylum Annelida  Class Polychaeta Sand worms, feather dusters Almost all marine Live in substrate Phylum Annelida  Class Hirudinea Leeches bloodsuckers Phylum Annelida Class Oligiochaeta  Animal: Earthworm S Symmetry: Bilateral S Body cavity: coelomate protostome S Digestion: complete mouth, esophagus, crop, gizzard, etc S Circulation: closed, 5 hearts S Segmentation: yes S Appendages: none S Nervous: dorsal brain, ventral nerve cord S Habitat: moist soils S Respiration: diffusion through body surface S Excretion: 2 lateral tubes S Locomotion: circular and longitudinal muscles, setae S Support: hydrostatic skeleton Earthworm model...
View Full Document

This note was uploaded on 06/06/2011 for the course BSC 2011L taught by Professor Presley during the Spring '11 term at FAU.

Page1 / 28

Annelids arthropods echinoderms - BSC 2011L Animal Taxonomy...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online