Bird gas exchange 1

True or False:
Birds exhale air with less oxygen than humans.

• True
• False

The lungs of a bird are?

• inelastic and large
• elastic and large
• inelastic and small
• elastic and small

What percentage of the volume of bird lungs changes with each breathe?

• 1%
• 2%
• 5%
• 10%

In birds gas exchange occurs in air-filled tubes called?

• alveoli
• air sacs
• air capillaries
• air tubes

True or False:
The gas exchange system of a bird is slightly similar to a fish.

• True
• False

True or False:
The air sacs in a bird take part in gas exchange

• True
• False

The air sacs in a bird aid in gas exchange by acting like?

• bellows
• a gas condenser
• a high pressure pump

The bronchus in a bird lung divides to eventually form the smallest tubes called?

• dorsobronchi
• ventobronchi
• parabronchi

Strong flying birds can have up to how many parabronchi?

• 100
• 1000
• 2000
• 5000

Each parabronchus gives off how many air capillaries?

• one
• one hundred
• hundreds