BIO 3102 Study Guide - Final Guide: Algal Mat, Burgess Shale, Symmetry In Biology

80 views21 pages
14 Jul 2014
Department
Course
Professor

Document Summary

See choanocytes carnivores that sting, entangle, or poison potential prey (predators) jellyfish, corals, sea anemones, and hydroids are members of the phylum either solitary or form huge colonies (example: coral reefs) Trigger triggers the release of the spring in the nematocyst. For production, the number of coral cups increases, and the coral grow on top of each other to form coral reefs. This process of moulting is the defining feature of the clade ecdysozoa,[2] comprising the arthropods, nematodes, velvet worms, horsehair worms, tardigrades, and cephalorhyncha. ]since the cuticula of these animals often forms an inelastic exoskeleton, it is shed during growth and a new, larger covering is formed. [2] the remnants of the old, empty exoskeleton are called exuviae. After moulting, an arthropod is described as teneral, a callow; it is fresh, pale and soft-bodied. Within one or two hours, the cuticle hardens and darkens following a tanning process similar to that of the tanning of leather.