Answer:
Both the sunflower and gingko have seeds.
Both the sunflower and gingko have cones.
The life cycle of sunflowers involves double fertilization; the life cycle of ginkgoes involves single fertilization.
Explanation:
An angiosperm refers to plants which are flower bearing and usually bisexual. The angiosperms are a large group and include grasses, herbs, shrubs and trees. A gymnosperm refers to plants whose seeds are borne on the female cones and seeds are not enclosed in a fruit wall. The gymnosperms comprise of coniferales, cycadales and ginkgoales. Both the sunflower (angiosperm) and ginkgo (gymnosperm) are seed-producing plants. However, the seeds of a sunflower are enclosed by a flower or a fruit wall, while in case of Ginkgoales they are not. Also, sunflowers include double fertilization, while the Ginkgoales involve only a single fertilization.
