11. In angiosperms, pollination results in the delivery of sperm cells to the ovary. Afterward, what happens?
a. Fertilization occurs, resulting in a triploid zygote.
b. Meiosis occurs, resulting in 3 haploid zygotes.
c. Mitosis occurs, resulting in a larger endosperm.
d. Double fertilization occurs, resulting in a zygote and triploid endosperm.
e. Double fertilization occurs, resulting in a diploid endosperm and haploid zygote.
12. Fruits are important innovations in the success of angiosperms because they promote cross-pollination and gamete exchange, they supply nutrients to the plant, and they promote seed dispersal.
13. 'Alternation of Generation' in plants can be accurately described as follows:
- Some adult plants are sporophytes, and some are gametophytes.
- Plants are haploid but alternate which chromosomes are in cells.
- Haploid gametophytes and diploid sporophytes are both independent and macroscopic.
- Haploid and diploid forms are in different parts of a plant.
- Plants are always diploid, but some are small, and some are large.