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ANSWER ALL 50 Questions on the Scantron provided using a #2 pencil and then X over pencil mark in a pen. In humans, which of these structures is not made of cartilage? A. tip of the nose B. outer ear C. intervertebral disks of the backbone I. knee cap larynx 2. Which of the following types of muscles are striated? A. skeletal and smooth B. cardiac only C. triceps and biceps only D. skeletal and cardiac E. skeletal, smooth, and cardiac 3. What are the cells that are specialized to produce and conduct electrochemical impulses called? A. neurons B. dendrites C. axons D. fibroblasts E. astrocytes 4. Evolutionarily, floral parts represent modified A. stems. B. leaves C. roots. D. stolons. E. buds. 5. . Ovules develop within the ovary, which is located in the swollen lower portion of which floral organ? A. anther B. stamen C. filament D. stigma E. pistil Which of the following is NOT a floral structure? 6. A. endosperm B. calyx . corolla D. stigma E style