Final answer:
The tree that is monospecific, has haustorial pollen tubes, medicinal properties, and motile sperm is likely the gymnosperm Ginkgo biloba. It is the only surviving species of its genus with such distinct features. Monocots are a different group of angiosperms and do not match the description provided.
Step-by-step explanation:
Monospecific Trees with Haustorial Pollen Tubes and Motile Sperm
The type of tree characterized as monospecific, having haustorial pollen tubes, medicinal properties, and motile sperm could likely be a gymnosperm, such as a species of ginkgo or cycad. These trees produce seeds but do not have flowers, with distinct male and female gametophytes. The term 'monospecific' typically refers to a genus that contains only one species, and in the context of gymnosperms, Ginkgo biloba fits this description, as it is the only surviving species in its genus. Ginkgo biloba has medicinal properties and haustorial pollen tubes that assist in nutrient absorption during fertilization. Additionally, gymnosperms, including Ginkgo and cycads, are known to have motile sperm.
By contrast, monocots are a different group of angiosperms, maintaining features such as a single cotyledon, parallel leaf venation, and often adventitious root systems, but they do not exhibit haustorial pollen or motile sperm. Monocots include many important crops like rice and corn. Although some angiosperms have medicinal properties, the available information most closely links the ginkgo with the described characteristics.