Identify the distinguishing characteristics of phylum Cnidaria. Also identify the classes within this
phylum and their identifying characteristics. Include at least one representative for each class that you
identify. 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 representives are listed in Table 31-1 on textbook page 644
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Organisms require _____ and _____ to maintain themselves, grow, and reproduce
Fill in the blank(s) with correct word
Cyanobacteria ____
a. are heterotrophs b. have evolved from ancient chloroplasts c. cannot fix carbon d. cannot fix nitrogen e. produce ammonia from gaseous nitrogen
Which of the following proteins would be a good drug target for interfering with microfilament network breakdown?
A) profilin B) CapZ C) gelsolin D) tropomodulin E) calmodulin
Exterior to the plasma membrane, plant cells have ________ which protect and support the plant cell.
Fill in the blank(s) with the appropriate word(s).