lesson 2 part b & lesson 3

the shape of pine tree leaves is like needle

• true

• false

all of the following organs belong to the respiratory system except

• nose

• two bronchi

• two lungs

• stomach

digestion process begins in the stomach with the help of saliva

• true

• false

water lily has wide leaves to absorb a large amount of water

• true

• false

during exhalation ,the diaphragm ........................and moves upward

• contracts

• relaxes

acacia tree uses wind to send messages

• structural

• behavioral

a little air sacs surrounded by blood vessels in the respiratory system

• bronchi

• lungs

• alveoli

• diaphragm

it has long snd strong roots

• mangrove

• waterlily

• palm tree

• pine tree

...........tree has fluffy yellow sees

• kapook

• acacia

..................produces a poison to defend itself

• acacia

• kapook

• mangrove