| 1. | The only female vertebrates to lack oviducts are the jawless fishes.
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| 2. | In addition, damaged oviducts increase the risk of ectopic pregnancy.
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| 3. | The oviducts are positioned near the ovaries where ova are produced.
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| 4. | Oviduct is usually short and sometimes thinner than penis and vagina.
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| 5. | The fertilized eggs develop within the female's oviduct.
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| 6. | Except in teleosts, the oviduct does not directly contact the ovary.
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| 7. | The distal part of the oviduct, called ootype, is dilated.
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| 8. | The sperm is preserved in the female's oviduct.
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| 9. | The spermatheca is spherical, its diameter twice of oviduct.
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| 10. | Females produce two mature eggs at a time, one per oviduct.
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