Adaptations to the Desert case study

Question 1

How has the kangaroo adapted to the desert?

Answer 1

• strong tail for balance
• intestine reabsorbs water meaning it is recycled
• long, thin feet allow hopping over long distances which is faster and easier
• lick and spit on wrists leading to heat leaving body therefore cooling the body

Question 2

How has the camel adapted to the desert?

Answer 2

• large, flat feet to spread their weight
• thick fur on the top for shade
• large surface area to volume ratio to maximise heat loss
• ability to go for a long time without water
• tolerate body temperatures up to 42*C

Question 3

How has a cactus adapted to the desert?

Answer 3

• spines instead of leaves for protection and small surface area to minimise water loss
• wise roots to collect water from a wide area and very quickly

Question 4

How has the Ocotillo adapted to the desert?

Answer 4

• shedding small leaves during dry spells
• grow new leaves 5 days after getting water
• shallow but side root system
• seeds can lay dormant for years then become live when it eventually rains