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ray-finned fish
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Characteristics of Ray-finned Fish
wikimedia.org
Skin
Fish have scales, which are bony plates in the skin.
Encyclopedia Britannica
Lungs
Fish have gills. The gills are covered by an operculum, which has a slit.
fishchannel.com
Fins
Fish do not have limbs. They have fins supported by rays.
Salmon eggs - seymoursalmon.com
Eggs and Sperm
Eggs and sperm are released for external fertilization.
Life Cycle of a Salmon - marine.ie
Life Cycle
Fish remain in water throughout their life cycle.
Most fish are cold-blooded - sharkwatchsa.com
Body Temperature
Fish do not maintain a constant body temperature.
earthlife.net
Swimming
Fish swim bladders contain gas for buoyancy.
Home
Plant Phyla
Bryophyta
Filicinophyta
Coniferophyta
Angiospermophyta
Animal Phyla
Invertebrates
>
Porifera
Cnidaria
Platyhelminthes
Mollusca
Annelida
Arthropoda
Vertebrates - Chordates
>
Ray-finned Fish
Reptiles
Mammals
Amphibians
Birds