Adaptation in Respiratory System (2)

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Examples of animals that use moist outer skin for respiration

Frogs

Example of animal that use gills for respiration

Fish

Example of animal that use trachea system for respiration

Grasshopper

Adaptation of the frog's outer skin that increase the efficiency of gaseous exchange (1)

The skin of frogs is thin and very permeable to gas

Adaptation of the frog's outer skin that increase the efficiency of gaseous exchange (2)

The skin of frogs is also always moist because it is covered by a layer of mucus which causes the respiratory gases to dissolve and diffuse easily

Adaptation of the frog's outer skin that increase the efficiency of gaseous exchange (3)

Under the layers of skin is a dense network of blood capillaries to increase the diffusion rate of gases between the skin and the blood capillaries

Adaptations of gills that can increase the efficiency of gas exchange in water (1)

Gills are made up of two rows of fine filaments that have many thin and flat projections known as lamellae

Adaptations of gills that can increase the efficiency of gas exchange in water (2)

The number of filaments and lamellae produces a large surface area to facilitate gaseous exchange

Adaptations of gills that can increase the efficiency of gas exchange in water (3)

Since fish live in water, their gills are surrounded by water and this causes the respiratory gases to dissolve and diffuse easily

Trachea system of insects (1)

The respiratory system of insects is the trachea system made up of air tubes known as trachea

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