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Questions and Answers
In cutaneous respiration, how does gas exchange occur?
In cutaneous respiration, how does gas exchange occur?
- Through gills or lungs
- Via the digestive system
- By diffusion through the bloodstream
- Across the skin or outer integument of an organism (correct)
How does cutaneous respiration occur?
How does cutaneous respiration occur?
- Via active transport mechanisms
- By direct diffusion from the environment
- By way of countercurrent exchange (correct)
- Through concurrent exchange
Which of the following animals exhibits cutaneous respiration?
Which of the following animals exhibits cutaneous respiration?
- Reptile
- Bird
- Amphibian (correct)
- Fish
What is an advantage of cutaneous respiration?
What is an advantage of cutaneous respiration?
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How do environmental changes affect cutaneous respiration?
How do environmental changes affect cutaneous respiration?
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Why do animals relying on cutaneous respiration not need specialized respiratory structures?
Why do animals relying on cutaneous respiration not need specialized respiratory structures?
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Study Notes
Cutaneous Respiration
- Gas exchange occurs through the skin, allowing for the exchange of oxygen and carbon dioxide directly between the environment and the body's internal tissues.
Characteristics of Cutaneous Respiration
- Cutaneous respiration occurs in animals that have a moist, permeable skin that allows for the exchange of gases.
Examples of Cutaneous Respiration
- Amphibians, such as frogs and toads, exhibit cutaneous respiration.
Advantages of Cutaneous Respiration
- An advantage of cutaneous respiration is that it allows for the exchange of gases without the need for specialized respiratory structures, such as lungs.
Environmental Factors Affecting Cutaneous Respiration
- Environmental changes, such as changes in temperature, humidity, and oxygen levels, can affect the rate of cutaneous respiration.
Evolutionary Adaptations
- Animals relying on cutaneous respiration do not need specialized respiratory structures because their skin is adapted to facilitate gas exchange.
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