Plant AdaptationsPlant Adaptations

ThinkThink

What are some What are some challenges plants challenges plants face on land?face on land?

Plants overcome Plants overcome these challenges these challenges with special with special adaptationsadaptations

Adaptation- CuticleAdaptation- Cuticle

Waxy coating on leafWaxy coating on leaf Prevents water lossPrevents water loss Can be very thick or Can be very thick or

thinthin What do you think What do you think

determines whether determines whether a plant has a thick or a plant has a thick or thin cuticle?thin cuticle?

Adaptation- StomataAdaptation- Stomata

Stoma open and close to control gas exchange Stoma open and close to control gas exchange and water lossand water loss

Made up of two guard cellsMade up of two guard cells

Adaptation- Vascular Adaptation- Vascular TissueTissue

Transports nutrients, Transports nutrients, water, carbs, and water, carbs, and waste around the waste around the plantplant Xylem- moves Xylem- moves

material up from the material up from the rootsroots

Phloem- transports Phloem- transports material down from material down from the leavesthe leaves

Adaptation- SeedsAdaptation- Seeds

Contain embryo, Contain embryo, nutrients, and coatnutrients, and coat

Able to survive harsh Able to survive harsh environmentsenvironments

Plant ClassificationPlant Classification NonvascularNonvascular

LiverwortsLiverworts MossesMosses HornwortsHornworts

VascularVascular Nonseed PlantsNonseed Plants

FernsFerns HorsetailsHorsetails Club MossesClub Mosses

Seed PlantsSeed Plants AnthophytesAnthophytes ConifersConifers GnetophytesGnetophytes CycadsCycads GinkgoesGinkgoes