Adaptations of vertebrate groups to gaseous exchange 3.0 / 5 based on 1 rating ? BiologyEcology, ecosystems and environmental biologyASWJEC Created by: sophiee96Created on: 06-03-13 15:06 What is a terrestrial organism? An organism that lives on land 1 of 17 What is a problem for all terrestrial organisms? That water evaporates from their body surfaces resulting in dehydration 2 of 17 Is air less or more dense than water? Less dense 3 of 17 What is the benefit of having internal lungs? Minimises loss of water and heat and are protected 4 of 17 Where does gas exchange take place in frogs (amphibians)? Thought the skin and in the lungs 5 of 17 What is the surface of gaseous exchange when frogs are inactive? The skin 6 of 17 Three qualities of frogs skin that makes it good for gaseous exchange? Moist, permeable and a well-developed capillary network just below the surface 7 of 17 What are the lungs of frogs like? Simple elastic sacs with a good blood supply 8 of 17 How does a frog inflate its lungs? By forcing air into them by movements of the floor of the mouth 9 of 17 Three amphibians? Frogs, toads and newts 10 of 17 Three reptiles? Crocodiles, lizards and snakes 11 of 17 Are amphibians or reptiles better suited to live on land? Reptiles 12 of 17 Do reptiles or amphibians have ribs? Reptiles 13 of 17 What are the benefits of reptiles having ribs? Support and protection to the organs in the body cavity and to ventilate the lungs 14 of 17 How are reptiles lungs more complex than amphibians? They have in-grown tissues increasing the surface area for gaseous exchange 15 of 17 Why do birds need lots of oxygen? To provide the energy for flight 16 of 17 How are bird lungs ventilated? By the flight muscles during flight 17 of 17
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