Answer:
seeds
Step-by-step explanation:
The answer to the blank is "seeds". Both gymnosperms and angiosperms are seed-producing plants. Seeds are structures that consist of a dormant plant embryo, stored food (endosperm), and a protective coat (seed coat) that helps to protect the developing embryo from desiccation, predation, and other environmental stresses. However, there are some differences in the structure of seeds produced by gymnosperms and angiosperms. Gymnosperms produce seeds that are not enclosed in an ovary, while angiosperms produce seeds that are enclosed in an ovary, which later develops into a fruit.