The challenges to live on land and the will to survive The sun can be brutal!

Bryophytes

What makes them so simple? They are non vascular o They live only centimeters of the ground and rely on osmosis for movement into the cells. They rely on water for reproduction. o They produce spores not seeds. o Sperms needs water to swim to the egg.

These spores have a protective case that protects the haploid cells Until they find a suitable spot to begin dividing. Once the young gametophyte forms, the sperm and egg will be released.

Gametophyte Stage (haploid)

Sporophyte Stage (diploid) Capsule Stalk

The dominant stage is the gametophyte stage

The ferns can do it better! Are vascular  Have a xylem and phloem  Can grow taller Still rely on water for reproducing. They are seedless

Haploid gametophyte (N) Diploid sporophyte (2N) MEIOSIS FERTILIZATION Mature sporophyte (2N) Gametophyte (N) Frond Sperm Egg Spores (N) Developing sporophyte (2N) embryo (2N) Mature gametophyte (N) Young gametophyte (N) Sporangium (2N) Section 22-3 The Life Cycle of a Fern Go to Section: male female

Gametophyte (haploid) of a fern

Sporophyte (diploid) of Fern Dominate Stage

Pinna Sori