xerophyte adaptations

Question 1

XEROPHYTE

Answer 1

Xerophytes are plants that live in desert (little water)

Question 2

LIFE CYCLE ADAPTATION

Answer 2

LIFE CYCLE ADAPTATION
Perennial plants bloom only in wet season
Dormant seed can survive for many years until optimum growth conditions
Plants shed leaves/become dormant in dry season

Question 3

METABOLIC ADAPTATIONS

Answer 3

METABOLIC ADAPTATIONS
CAM plants: CO2 is absorbed at night and stored as a 4 carbon compound
During the day, photosynthesis is optional
Stomata can close during day

Question 4

PHYSICAL ADAPTATIONS

Answer 4

PHYSICAL ADAPTATIONS
Fewer leaves and stomata
Rolled leaves and spikes, smaller leaves (decrease surface area of leaves)
Stomata in pits with hairs to increase humidity near stomata
Deeper roots to reach water
Cacti can store water in fleshy watery stems
Waxy cuticle that reduces evaporation