FISH PROYECT

FISH

FISH

• You can tell the age of a scaly fish by counting the number of rings on its scales.
• Sometimes the rings on scales are wide and sometimes they are narrow depending on whether the fish has had a good supply of food.
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FISH

• Fish are aquatic animals that live in marine and freshwater enviroments (seas, oceans, rivers...)
• They have fins that help them to swim.
• They have scales.
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VITAL FUNCTIONS FISH

• NUTRITION:
• -Some are:
• -carnivores like salmon
• -herbibores like parrotfish
• -omnivores like carp
• -fish breathe through gills
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VITAL FUNCTIONS FISH

• REPRODUCTION:
• -fish have separates sexes
• -most of them are oviparous and their fertilisation is external
• -sharks and rays use internal fertilisation
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VITAL FUNCTIONS FISH

• INTERACTION:
• -fish have a senses organ called a lateral line
• -this runs along each side of the body and detects changes in water preassure or the presence of pray or predator
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FISH

• Fish scales are coloured so that the fish will blend in with its surroundings.
• This is called: CAMOUFLAGE
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FISH

• All fish are vertebrates.
• (have a backbone)
• They were the first animals to have backbone.
• (vertebrates)
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FISH

• MADE BY:
• MARTA BARROCAL
• CRISTINA REVUELTA
• MARTA CRESPO