Which one of the following choices states a major difference between the life cycle of an angiosperm and a gymnosperm such as pine?
Angiosperms are dioecious; pines are not.
Angiosperms use a pollen tube to deliver sperm to the egg; pines do not.
The tissue surrounding the embryo is triploid in angiosperms; it is diploid in pines.
The megaspore mother cell is diploid in angiosperms; it is haploid in pines.
Microspores are produced by meiosis in angiosperms; they are produced by mitosis in pines.