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Vertebrates Lesson Presentation
Transcript of Vertebrates Lesson Presentation
Have thin moist skins, gaseous exchange can occur through the skin.
Body is without scales, smooth skin.
They are adapted for a terrestrial and aquatic environment. They usually have a life cycle (tadpole into a frog)
They have to return to water to lay eggs. Eggs are gelatinous and soft without and egg shell.
Vertebrates adapted for an aquatic environment.
Have a streamlined body so as to be able to move inside liquid bodies more easily (less resistance from water).
The body has fins to propel the organism, change direction and break.
Have gills for gaseous exchange under water.
Scales cover the body.
thus they do not produce their own heat. Temperature control is due to the environment.
Animals that have a vertebral column extending to form a tail.
Have an internal skeleton usually made up of bone.
Very successful terrestrial vertebrates! Some species can survive in hot environments like deserts. Others live in water but are unable to breathe underwater, they need to go to the surface.
They have dry scaly skins. An adaptation to reduce water loss.
They lay eggs on land in leathery shells. The shell of the eggs is quite hard.
Their body covered with feathers. This helps them keep warm (from losing heat) and usually waterproofing.
Their forelimbs are modified into wings; these may enable most of the species to fly, some birds do not fly like the penguin and the ostrich.
they have toothless beaks. The beaks of different species are adapted for the food the bird eats.
Birds lay eggs in hard protective shells.
. This means that these organisms produce their own heat at the cost of energy.
Mammals have their body covered with hair. This helps them from losing heat.
They have mammary glands that produce milk, these are used to take care of their young.
They have external ears.
They have a diaphragm separating the thorax from the abdomen.
The Animal Kingdom
Different Forms of Life