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
Model Organism Drosophila
Each experimental organism used in cell biology has advantages for certain types
Organic obstructions of the intestinal tract.
Student Raises Hand in Class
Student Perspective of Research
A Matter of Wording