JAMB - Biology (2005 - No. 4)

Both angiosperms (flowering plants) and gymnosperms (conifers, cycads, etc.) are considered to be part of the group of seed-bearing plants, often referred to as "spermatophytes" or "seed plants". 

Spermatophytes (Seed Plants) broadly refers to the group of plants that produce seeds as their reproductive structure. 

Angiosperms are flowering plants, characterized by having their seeds enclosed within a fruit (e.g., apples, berries, nuts). 

Gymnosperms are plants that produce "naked seeds," meaning their seeds are not enclosed within a fruit, and are often found on cones (e.g., pine cones).