quiz concept 1 grade 4

From the negative effects of human activities on the human health are............

• Lung damage and asthma

• Heart problem and wounds

• Athma and wounds

• Lung damage and lungs

Air enters and exits the human body through................system.

Correct the word between parentheses:Gills are unique (behavioral) adaptation that allow fish to breathe

under water.

Both of human and fish.......

• Can breathe in water

• Can breathe in air

• Use carbon dioxide gas to breathe in

• Use oxygen gas to breathe in

The organ that moves the food into the stomach is...........

• Esophagus

• Small intestine

• Large intestine

• Tongue

Give reason for:

Arctic fox has a thick fur coat.

Write the scientific term:

A tree that grows in southern African savannah and it has a sharp spines around its leaves

What happens if:

Water lily has narrow leaves instead of wide leaves

Write the scientific term:

Little air sacs surrounded by blood vessels in the respiratory system

During inhalation, the size of chest become narrow

• True

• False