Biology / Unit 10 Bio 2163 short lesson, about 20 seconds
Four Adaptations for Life on Land
Captions available
The idea
Early land plants evolved key adaptations to life on land: the haplodiplontic cycle of Bio 1001, apical meristem tissue, a waxy cuticle, and lignified cell walls.
In practice
A moss's waxy cuticle resists drying; lignin stiffens cell walls in later lineages.
Where people slip
Not every land plant shows all four — mosses lack lignin, and losing one does not remove a lineage from the group.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Something wrong in this lesson? Flag it · Sources for Biology