Figure 24.6
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Refer to the illustration above of an adult sponge for questions 10 and 11.
In the accompanying figure, a cell type that distributes breakdown products of digestion to other cells in the sponge body is identified by the number ____.
A. 1
B. 2
C. 3
D. 4
E. 5
Answer: B
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Protozoan cells do not exhibit ________.
A. a cell wall B. motility C. cyst formation D. ectoplasm and endoplasm E. heterotrophic nutrition
GALT refers to
A. sterile organs of the GI tract: Gingiva, Appendix, Large intestine, Tonsils. B. Gingival Adhesive Labile Toxin, a virulence factor for gingivitis. C. defenses of the GI tract: Gut microbes, Adenoids, Lysozyme, Tonsils. D. Gut-Associated Lymphoid Tissue.
Volume increases by the __________ of the
diameter, and surface area increases by __________ of the diameter. a. square; doubling b. square; the cube c. cube; the square d. cube; the cube e. none of these
Which of the following is a characteristic of all chordates at some point during their life cycle?
A) jaws B) post-anal tail C) four-chambered heart D) vertebrae