Final answer:
The statement that dioecious species have individuals with only male or only female reproductive structures is true. Dioecious plants have separate male and female individuals as opposed to monoecious plants which have both reproductive structures on one individual. so, option 1 is the correct answer.
Step-by-step explanation:
Species in which individuals have only male or only female reproductive structures are indeed called dioecious. This means that a dioecious species has separate male and female plants, rather than having both reproductive structures on a single individual. Examples of dioecious plants include cannabis, holly, and willow trees. This is in contrast to monoecious plants, which have both male and female reproductive structures on the same plant, such as in corn and peas. In short, the statement that dioecious species have individuals with only male or only female reproductive structures is true.
Species in which individuals have only male or only female reproductive structures are called dioecious.
True. Species in which individuals have only male or only female reproductive structures are called dioecious. In dioecious plants, males and females reproductive structures are on separate plants.