Identify the distinguishing characteristics of phylum Cnidaria. Then outline the classes within this phylum and their
major characteristics. Include at least one representative for each class. What will be an ideal response?
Members of phylum Cnidaria are characterized by having radial symmetry, cnidocytes, a
nerve net, and a sac-like, diploblastic body plan with tentacles surrounding the mouth. The
four classes within this phylum, their characteristics, and representatives are listed in Table
31-1 of the textbook.
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What simple sugar is produced ?
a. Glucose b. Fructose c. Galactose d. Sucrose e. Cellulose
Genes on the same chromosome are said to show ______________. Fill in the blank(s) with the appropriate word(s)
Single-stranded DNA molecules are said to be antiparallel when they are lined up next to each other but oriented in opposite directions.
a. true b. false
What three features define eusociality? (Check three.)
A. insect species only B. overlap of generations C. haplodiploidy D. cooperative brood care E. reproduction during a mating flight F. reproductive division of labor G. colony resides in an enclosed hive or nest