What term describes organisms that have either male or female sex organs?

The term used to describe organisms that possess either male or female sex organs is "hermaphroditic." Hermaphroditic organisms have both male and female reproductive systems in the same individual, allowing them to produce both types of gametes. This adaptation can be advantageous in environments where mates are scarce, as it increases the chances of successful reproduction.

Dioecious refers to species that have distinct male and female individuals, meaning that an organism is either one or the other, but not both. In these species, individuals generally require a partner of the opposite sex for reproduction, thus contrasting with hermaphroditic organisms.

Monoclinous is another term that would refer to organisms that have both reproductive structures, but it is less commonly used than “hermaphroditic.” Meanwhile, bisexual indicates an organism that has relationships or reproductive capabilities with both genders, but does not directly imply the presence of both male and female organs within the same organism.

Understanding the definitions and characteristics of these terms helps clarify why "hermaphroditic" is the most accurate term for organisms with both male and female sex organs.