B2.2 Crossword

Why do the cells that cause opening and closing of the stomata change shape? (7, 2, 6)
Do cartilaginous fish have parallel flow or counter current flow? (9, 4)
Give three examples of amphibians. (4, 4, 4)
What gives the lungs a large surface area? (3, 7)
What does the closing of the stomata do? (7, 5, 4)
Is in the inner or the outer wall of guard cells thicker? (5, 4)
Name three different animal exchange surfaces. (5, 5, 7)
What is the transition of an aquatic organism to terrestrial organism called for example tadpoles to frogs? (13)
What is the disadvantage of respiratory surfaces being thin? (4, 3, 6, 7)
What is the respiratory surface in mammals? (7, 2, 3, 5)
What is the gas exchange surface of an amoeba? (3, 4, 8)
What sort of blood system does the earth worm have? (1, 6, 5, 6)
Where does an amoeba live? (2, 5)
What is the respiratory surface in insects? (7)
Name a simple, unicellular organism? (6)
What is the respiratory surface in fish? (5)
As size and specialisation increases, tissues and organs become more dependent or independent on each other? (4, 9)
What is each gill supported by? (1, 4, 4)
What are fish's gas exchange surface? (3, 5)
What type of surface area to volume ratio do unicellular organisms have? (1, 4, 3)
Do multicellular organisms have a high or low surface area to volume ratio? (1, 3, 3)
How is water loss reduced by insects? (4, 4, 3, 5)
What is the space between the two pleural membranes of the lungs and thorax called? (7, 6)
What is the gas exchange surface for unicellular organisms? (3, 6, 8)
In bony fish, what is the name of the flap that covers the gills? (3, 9)
What is in the pleural cavity? (7, 5)
What is the name of the gas exchange surfaces on the gill filaments? (4, 8)
What is the skeleton of cartilaginous fish make of? (9)
What does the mouth do to force water out over the gill filaments? (6)
What does the mouth act as in bony fish? (1, 4)
What is the internal skeleton of bony fish made of? (4)
What does the floor of the mouth do to force water out over the gill filaments? (5)
Along each gill arch on bony fish there are many thin plates called what? (7)
What are on the lamella? (3, 4, 6)