fish (1)
TRANSCRIPT
They breathe under water using gills , not lungs .
They always live in water.
Their body temperature is similar to the temperature of water .
Fish are the first animal to evolve jaws.
They haven´t limbs . They have scales , fins and a tail to move .
They are oviparous . They lay many eggs .
They eat plant material and other acuatic animals .
They are cold-blooded.
VERTEBRATES
They have a highly developed brain
They have a well-developed internal skeleton of cartilage and bone. So vertebrates can develop bigger bodies than invertebrates
They have advanced nervous system, more complex than that of invertebrates
They have well-developed sensory organs
These animals can learn from their mistakes
VERTEBRATES
They have a highly developed brain
They have a well-developed internal skeleton of cartilage and bone. So vertebrates can develop bigger bodies than invertebrates
They have advanced nervous system, more complex than that of invertebrates
They have well-developed sensory organs
These animals can learn from their mistakes
They can react very quickly to change in their surroundings
The highly developed nervous system and internal skeletons of vertebrates make them adaptable to land, sea and air. So they live in a variety of habitats
Most vertebrates can move and are heterotrophic (they can make their own food)
They have a respiratory system with either gills or lungs
They have an outer covering of protective celular skin
Vertebrates are only 2% of the animals species
They have a bilateral symmetry plan (right and left halves that mirror each other and front and back end
Human beings are vertebrates
