Question

multiple choice 2 points
in alternation of generations in plants, the gametophyte generation
meiosis, fertilization
fertilization, meiosis
mitosis, fertilization
none of the above
17 multiple choice 2 points
to reproduce sexually, bryophytes and ferns require...
heterospory
free water for sperm to swim to the eggs
high temperatures
insect based pollination

Explanation:

1. In the alternation of generations in plants, the sporophyte generation produces spores through meiosis. These spores develop into the gametophyte generation. The gametophyte generation produces gametes (sperm and eggs). Fertilization occurs when a sperm fuses with an egg, forming a zygote that develops into the sporophyte generation again. So the correct sequence related to the transition from sporophyte - gametophyte - sporophyte is meiosis first (to produce spores for gametophyte) and then fertilization (to form the new sporophyte).
2. Bryophytes and ferns have swimming sperm. They require a moist environment, which means free - water is necessary for the sperm to swim to the eggs for fertilization to occur. They do not rely on heterospory for sexual reproduction in the same way as some other plants, high temperatures are not a requirement for their sexual reproduction, and they do not use insect - based pollination as they lack the complex flower structures of angiosperms.

Answer:

1. Meiosis, Fertilization
2. Free water for sperm to swim to the eggs