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Unformatted text preview: (If necessary, look at the vertebrate diversity lab). 5. Is a rat a deuterostome or a protostome? Does a rat undergo an estrous cycle or a menstrual cycle? 6. For a rat, trace the movement of sperm from the seminiferous tubules out the urethra. 7. From where is the egg released during ovulation in a rat? in a human? Do they have the same ploidy? 8. Which signals promote egg release from a sea urchin? Is fertilization external or internal? A72 Vertebrate Reproduction Notes...
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