Which plants are classified as angiosperms?

Angiosperms, also known as flowering plants, are characterized by the presence of flowers and the production of seeds enclosed within a fruit. This unique feature distinguishes them from other plant groups. The classification includes a wide variety of plants, such as grasses, orchids, and many others that produce flowers and fruits.

The correct answer highlights this essential characteristic, as flowering plants utilize their floral structures to facilitate reproduction, often attracting pollinators, which enhances their reproductive success. Additionally, the presence of fruits aids in the dispersal of seeds, allowing angiosperms to spread and adapt to various environments.

The other options include plant groups that do not fit the definition of angiosperms. Coniferous trees are gymnosperms, which are seed-producing plants that do not produce flowers or fruits. Cacti and succulents can be angiosperms, but the inclusion of just these specific types does not encompass the broader group. Lastly, mosses and liverworts are bryophytes, primitive plants that reproduce via spores rather than seeds and do not have flowers or fruits. Thus, the focus on flowering plants such as grasses and orchids accurately reflects the defining traits of angiosperms.