BIOL 1021 Lecture Notes - Lecture 5: Body Shape, Isopoda, Hemiptera

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1021
• Professor: Scott Kevin

Document Summary

Compared to lophtrophzoa, who have a rather gradual growth. Left is a male; right is a female. Long one is the gut of the female. Male have a small circle of gut ;and reproductive organs. Round worm are pseudocoelomate; incompletely lined with mesoderm. When they moult, the cuticle extends into intestinal tract. Not as rigid as a crab, but still a confining space they need to get rid of in order to grow. Hard on the outside and can be highly variable depending on what it"s job is. Clade cheliceriformes: grouped on a common structure: fangs. Sea spiders have 8 legs but aren"t like regular spiders. Cheliceriformes is the most ancestral clade of the anthropods. Leg has one base and a single tip. Millipede: 2 pairs of legs for each segment. Comprised of groups within: decapods: 10 pairs of walking legs.