Describe the life cycle of mosses, ferns, angiosperms, and gymnosperms.?

Question

Written would be the best. Please do not put pictures.

Answer 1

All of these groups of plants have life cycles that involve alternation of generations.

The gametophyte generation is named after the way it reproduces with gametes, or eggs and sperms. When the eggs are fertilized, they resulting zygote grows into the sporophyte generation.

The sporophyte generation is named after the way it reproduces with spores. When the spores blow away and grow, they grow into the gametophyte generation.

Mosses are the only plant group on the list in which the gametophyte generation is dominant. All the others have a dominant sporophyte generation and a greatly reduced gametophyte.

Answer 2

Multi-cellularity, of course, allowed fungi and plants to grow larger than their microbial ancestors. With the exception of the larger true Algae (seaweeds and kelp), however, most protoctists that persisted to modern times have remained microscopic in size. After over three billion years of evolution in the oceans, multi-cellular life -- beginning with green algae, fungi, and plants (mosses, ferns, then vascular and flowering plants) -- began adapting to land habitats by creating a new "hypersea," and adding anomalous shades of green to Earth's coloration. Exploiting habitats that are often or mostly out of water required new symbiotic relationships to contain and move water, including the fusion of some fungi and algae to create lichen incommunities with bacteria that survive extreme desiccation on land while breaking down rock into soil, and the association ofmycorrhizae fungi and the root tissue of new vascular plants -- culminating in trees that pump water high into the air -- toexchange mineral nutrients (e.g., phosphorus) and usable "fixed" nitrogen from the atmosphere for photosynthetic products.