A student observes a wormlike organism crawling about on dead organic matter. Later, the organism sheds its outer covering. One possibility is that the organism is a larval insect (like a maggot). However, it might be a member of the phylum ________, and one way to distinguish between the two possibilities is by looking for ________.
A) Platyhelminthes; a cuticle of chitin
B) Nematoda; an alimentary canal
C) Annelida; a body cavity
D) Nematoda; a circulatory system
E) Annelida; muscle in the body wall
Decomposers (detritivores) feeding on dead plant and animal matter.
Model Organism Neurospora
Nursing student will understand it
Non-Carbon Organic Molecules
Andrea Mantegna, The Dead Christ.
Areas of sclerosis (see arrows) in the white matter of a patient with MS.