(4) Fishes1 - Vertebrates Chordate characteristics...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Vertebrates Chordate characteristics Integument - epidermis and dermis Endoskeleton - limb girdles Many muscle Complete GI tract Ventral heart, closed circulation, RBC’s with Hb, 2 circuits Well-developed coelom Paired kidneys Brain with 10 - 12 prs. Cranial nerves, Endocrine system Separated Sexes Body plan - Head, Trunk, Post anal tail
Background image of page 1

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

View Full DocumentRight Arrow Icon
Fishes Fishes “Gill-Breathing, Ectothermic, Aquatic Vertebrates with Paired Fins and Skin with Scales”
Background image of page 2
Fishes Fishes Agnathans Gnathostomes Ostracoderm, Hagfishes Lampreys - filter feeders - scavengers - parasites - no vertebrae Jawed Fishes Tetrapods - jaws = modification of 1st 2 gill arches - paired appendages
Background image of page 3

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

View Full DocumentRight Arrow Icon
Superclass Agnatha Superclass Agnatha 84 species; most primitive fishes Jawless, eel-like body No bones, no scales, No paired fins Pore-like gills 2 Groups: Hagfishes and Lampreys
Background image of page 4
Hagfishes - “slime eels” Marine Scavengers Keen smell and
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 12

(4) Fishes1 - Vertebrates Chordate characteristics...

This preview shows document pages 1 - 6. Sign up to view the full document.

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