A student observes a worm-like 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). On the other hand, it might be a member of which phylum, and one way to distinguish between the two possibilities is by looking for the presence of
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.

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The Answer of A student observes a worm-like 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). On the other hand, it might be a member of which phylum, and one way to distinguish between the two possibilities is by looking for the presence of
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.

A Student Observes a Worm-Like Organism Crawling About on Dead