For example, the great majority of tunicates , pulmonate snails, opisthobranch snails , earthworms , and slugs are hermaphrodites. Hermaphroditism is also found in some fish species and to a lesser degree in other vertebrates. Most plants are also hermaphrodites. Animal species having different sexes, male and female, are called gonochoric , which is the opposite of hermaphrodite. There are also species where hermaphrodites exist alongside males called androdioecy or alongside females called gynodioecy , or all three exist in the same species called trioecy ; these three systems are sometimes called mixed breeding systems.
Male Reproductive System: Structure & Function
Going to a Cleveland Clinic location? These external organs include the penis, scrotum and testicles. Internal organs include the vas deferens, prostate and urethra. The male reproductive system is responsible for sexual function, as well as urination.
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The town is called Salinas and if you ask anyone in the country about Salinas -- the one close to Barahona because there are four -- you will hear two tales: One is how some of the people there were born with a rare condition that made their feet look like lobster feet. And the other tale is of how a number of children were presumably born as girls and later turned into boys once they hit puberty. But as they got older, their voices deepened and it was discovered they had testicles, eventually turning into adult men. Doctors from Cornell University in upstate New York traveled there to study some of the children with this medical anomaly, even bringing some of them back to the states for research.
Reproduction is the process by which organisms make more organisms like themselves. But even though the reproductive system is essential to keeping a species alive, unlike other body systems, it's not essential to keeping an individual alive. In the human reproductive process, two kinds of sex cells, or gametes pronounced: GAH-meetz , are involved.