Question

this diagram shows the life cycle of a pine tree.
angiosperms have flowers that make seeds. what do conifers use to make seeds?
cones
needles

Explanation:

The diagram of the pine tree (a conifer) life cycle shows male and female cones, and a fertilized cone leading to seeds. Angiosperms use flowers for seeds, so by analyzing the conifer life cycle diagram, we see cones are involved in seed production, while needles are for photosynthesis/structure, not seed - making.

Answer:

cones