Differences
Bony Fish
They are both fresh water as well as marine.
Endoskeleton is made up of bone.
They have 4 pairs of gills.
Cloacal aperture is absent.
mouth is normally terminal
Cartilaginous Fish
They are marine.
Endoskeleton is made up of cartilage.
They have 5-7 pairs of gills.
Cloacal aperture is present.
mouth is at the ventural surface
similarties
Bony fish and cartilaginous fish represent two classes of aquatic chordates. Both bony fish and cartilaginous fish belong to the superclass Pisces. Both bony fish and cartilaginous fish have an endoskeleton.are their centralized nervous systems, their sizes are similar, they both belong to the phylum chordata, they are both a family of the fish, and both have a lateral line organ that enables the fish to detect movement and vibration in the water surrounding them.
Explanation:
Most heterotrophs are chemoorganoheterotrophs<span> (or simply </span>organotrophs<span>) who utilize organic compounds both as a carbon source and an energy source. The term "heterotroph" very often refers to chemoorganoheterotrophs. Heterotrophs function as consumers in </span>food chains: they obtain organic carbon by eating autotrophs or other heterotrophs. <span>Most </span>opisthokonts<span> and </span>prokaryotes<span> are heterotrophic</span>
They move by osmosis(a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.).
The volume of the thoracic cavity increases and the pressure decreases.
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