BI 1 WK 3 Quiz

Match the vocabulary word with the correct definition

• bends or ridges that allow growth

• Folds

• a stiff, sharp needle of a cactus

• Evaporate

• to change from a liquid a gas

• Spine

It is difficult for living things to survive because deserts are ​ (a)   _

• dry and hot
• rainy and wet

Spines are an adaptation of _____

• roots

• leaves

• flowers

A cactus uses it spines to attract animals

• True

• False

Label the cactus parts

a

b

c

flower

Folds

roots

How do shallow roots help a cactus?

• prevents water from evaporating

• gives shade

• helps it collect rain

A cactus is adapted to ​ (a)   in a hot dry desert. It stores up water and uses the water slowly. The thick waxy skin of the cactus helps make sure that the water doesn't ​ (b)   . Sharp ​ (c)   protect the plant

• survive
• evaporate
• spines