Respiratory Organs
BIOXI17: BREATHING AND EXCHANGE OF GASES

338823 Mechanism of breathing and the organs involved varies among different groups of animals due to

1 Habitat
2 Levels of organisation
3 Size of the organism
4 Both 2 and 3
BIOXI17: BREATHING AND EXCHANGE OF GASES

338824 Identify the correct statement:

1 Higher invertebrates like sponges, coelenterates, flatworms, etc., exchange gases by simple diffusion over their entire body surface.
2 Aquatic arthropods and molluscs use network of tracheal tubes.
3 Moist cuticle and skin is used by earthworm.
4 Terrestrial amphibians and the larval stages of amphibians respire with gills, while aquatic amphibians use lungs and moist skin.
BIOXI17: BREATHING AND EXCHANGE OF GASES

338825 Statement A :
Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange \(\mathrm{O}_{2}\) with \(\mathrm{CO}_{2}\) by simple diffusion over their entire body surface.
Statement B :
Among invertebrates, fishes use gills whereas amphibians, reptiles, birds and mammals respire through skin.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
BIOXI17: BREATHING AND EXCHANGE OF GASES

338826 Air sacs supplement ventilation in

1 Columba
2 Canis
3 Calotes
4 Carcharodon
BIOXI17: BREATHING AND EXCHANGE OF GASES

338823 Mechanism of breathing and the organs involved varies among different groups of animals due to

1 Habitat
2 Levels of organisation
3 Size of the organism
4 Both 2 and 3
BIOXI17: BREATHING AND EXCHANGE OF GASES

338824 Identify the correct statement:

1 Higher invertebrates like sponges, coelenterates, flatworms, etc., exchange gases by simple diffusion over their entire body surface.
2 Aquatic arthropods and molluscs use network of tracheal tubes.
3 Moist cuticle and skin is used by earthworm.
4 Terrestrial amphibians and the larval stages of amphibians respire with gills, while aquatic amphibians use lungs and moist skin.
BIOXI17: BREATHING AND EXCHANGE OF GASES

338825 Statement A :
Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange \(\mathrm{O}_{2}\) with \(\mathrm{CO}_{2}\) by simple diffusion over their entire body surface.
Statement B :
Among invertebrates, fishes use gills whereas amphibians, reptiles, birds and mammals respire through skin.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
BIOXI17: BREATHING AND EXCHANGE OF GASES

338826 Air sacs supplement ventilation in

1 Columba
2 Canis
3 Calotes
4 Carcharodon
BIOXI17: BREATHING AND EXCHANGE OF GASES

338823 Mechanism of breathing and the organs involved varies among different groups of animals due to

1 Habitat
2 Levels of organisation
3 Size of the organism
4 Both 2 and 3
BIOXI17: BREATHING AND EXCHANGE OF GASES

338824 Identify the correct statement:

1 Higher invertebrates like sponges, coelenterates, flatworms, etc., exchange gases by simple diffusion over their entire body surface.
2 Aquatic arthropods and molluscs use network of tracheal tubes.
3 Moist cuticle and skin is used by earthworm.
4 Terrestrial amphibians and the larval stages of amphibians respire with gills, while aquatic amphibians use lungs and moist skin.
BIOXI17: BREATHING AND EXCHANGE OF GASES

338825 Statement A :
Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange \(\mathrm{O}_{2}\) with \(\mathrm{CO}_{2}\) by simple diffusion over their entire body surface.
Statement B :
Among invertebrates, fishes use gills whereas amphibians, reptiles, birds and mammals respire through skin.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
BIOXI17: BREATHING AND EXCHANGE OF GASES

338826 Air sacs supplement ventilation in

1 Columba
2 Canis
3 Calotes
4 Carcharodon
BIOXI17: BREATHING AND EXCHANGE OF GASES

338823 Mechanism of breathing and the organs involved varies among different groups of animals due to

1 Habitat
2 Levels of organisation
3 Size of the organism
4 Both 2 and 3
BIOXI17: BREATHING AND EXCHANGE OF GASES

338824 Identify the correct statement:

1 Higher invertebrates like sponges, coelenterates, flatworms, etc., exchange gases by simple diffusion over their entire body surface.
2 Aquatic arthropods and molluscs use network of tracheal tubes.
3 Moist cuticle and skin is used by earthworm.
4 Terrestrial amphibians and the larval stages of amphibians respire with gills, while aquatic amphibians use lungs and moist skin.
BIOXI17: BREATHING AND EXCHANGE OF GASES

338825 Statement A :
Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange \(\mathrm{O}_{2}\) with \(\mathrm{CO}_{2}\) by simple diffusion over their entire body surface.
Statement B :
Among invertebrates, fishes use gills whereas amphibians, reptiles, birds and mammals respire through skin.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
BIOXI17: BREATHING AND EXCHANGE OF GASES

338826 Air sacs supplement ventilation in

1 Columba
2 Canis
3 Calotes
4 Carcharodon