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Unformatted text preview: Bees, ants, wasps
• Stink bugs, bed bugs, etc
• Grasshoppers, crickets, etc.
(Orthoptera) (~1%) 119 Beetles are largest subclass (~30% of all animals) 120 4 General Mouth part Types
Allow for a variety of types of feeding strategies Sucking Chewing
beetles, e.g. butterflies Piercing/ sucking e.g. aphids, mosquitoes Absorbent e.g. Flies 121 Deuterostomes Cleavage Coelom Formation Fate of Blastopore • Traditionally separated from other
Bilateria based on development
• But a couple clades outside of
(e.g. ectoprocta, Brachiopoda)
develop similarly to these.
• Thus, Deuterostome monphyly
based primarily on DNA similarities
Figures 32.10 and 32.11 (Campbell et al.) 122 Phylum: Echinodermata Sea urchins, sand dollars, sea stars, brittle stars, sea cucumbers and crinoids Abundant molecular data places echinoderms
as the sister taxon to Chordates Figures 32.10 and 32.11 (Campbell et al.) 123 Phylum
spiny skin Defining features: •Marine
•Slow, mobile, bottom dwellers
•Endoskeleton of CaCO3 plates
•Water vascular system (tube feet)
•Unisexual w/ external fertilization 124 Phylum Echinodermata Most of the adults have radial symmetry (or close to)… So why in Bilateria?
symmetry 125 Skeletal support system • CaCO3 plates (ossicles)
under a layer of epidermis
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This note was uploaded on 02/12/2014 for the course BIOLOGY 2011 taught by Professor Woo during the Fall '10 term at University of Central Florida.
- Fall '10