grade4

a plant has sharp spines and tough outer cover

• water lily

• barbery fig

• acacia tree

• kapok tree

kapok tree has ....... leaves to allow wind pass through

• v shaped

• needle

• wide

• hand shaped

a structure surrounded by blood vessels

• treacha

• two bronchi

• alveoli

• lungs

during inhalation, size of chest ...... and diaphragm moves .....

• increase , downward

• decrease , upward

• increase , upward

• decrease , dawnward

the exhaled air differs from inhaled air that it rich in .....

• oxygen

• nitrogen

• hydrogen

• carbon dioxide

all of the following are amphibians except

• toads

• frogs

• starred agama

• salamnders

amphibians live in ..... environment

• dry

• moist

• sandy

both of amphibians and panther chameleon live in rainforest

• true

• false

fihj extract ..... from water

• carbon dioxide

• oxygen

dolphins depend on ..... to locate their prey