- In mammals, the SRY gene is responsible for
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Frogs reproduce by
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This male Galapagos Tortoise inserts its penis into the female to inject his sperm. This internal fertilization is called
- In birds, the common opening of the reproductive, digestive, and urinary systems is called
- In human males, the common exit duct for both semen and urine is the
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In human males, meiosis I produces
- The process of producing a blastocyst from a zygote is
- Oogenesis in humans produces