Examples of respiratory structures of terrestrial animals
-:- bulk flow with tracheal system and spiracles (insects), cutaneous
(frog)
Examples of respiratory structures of aquatic animals
-:- bulk flow (sponges, cnidarians), gills, water vascular system,
arborescent respiratory trees (sea...
Name an aquatic and terrestrial animal that utilizes a bulk flow step in both their respiratory
and circulatory systems and identify the two sites of gas diffusion during the transport of O2
and CO2 through the body.
✓ -:- Animals that utilize bulk flow in their respiratory and circulatory
systems
Aquatic: mollusks, crustaceans
Terrestrial: vertebrates
It diffuses into respiratory vasculature of the alveoli and respiring cells through the
capillaries, where it enters mitochondria for aerobic respiration.
What are the gills of a mollusk called (which also double as a ciliated, filter-feeding structure
in bivalves)?
✓ -:- Ctenidia are large leaf-like organs that are used partly for
respiration and partly for filtering food from the water in mollusks
How do cephalopods actively move water across their gills?
✓ -:- Cephalopods have paired gills and muscles that force water through
a mantle cavity
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