In what three ways does reproduction in the angiosperms differ from that of the gymnosperms? How did the evolution of the flower promote the explosive diversification of the Angiosperms in the Cretaceous? Strictly speaking, what is a fruit? Distinguish among simple, multiple, and aggregate fruits. Distinguish between fleshy and dry fruits. Distinguish between dehiscent and indehiscent fruits.

Answers:

In angiosperms, the female gametophyte (or ovule) is in the ovary, while in gymnosperms the ovule is exposed on the female cone.

The evolution of the flower helped in seed dispersal through pollinators.

The fruits are structures used by plants to disperse their seeds. Dehiscent fruits are split open at maturity to release their seeds, while indehiscent fruits do not split open

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs