Vertebrates
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What do all mammals have?
A pinna, hair on their skin, a diaphragm, sweat glands, the different kinds of teeth, mammary glands, a uterus and a placenta
What are mammals shared features with birds?
• Being able to control their body temperature • Having 4 chambers in their heart
Give the two characteristics of amphibians
• They don’t have scales • Tadpoles have gills but adults have lungs
Describe the life span of amphibians
During the larval stage the tadpoles spend much time in the water. After that stage they metamorphosis into their new adult bodies
What are the characteristics of birds?
• Feathers and beak • Some have scales but usually on their legs • Their eggs have a hard shell that stops them from drying out • Their front two limbs are wings
Give the characteristics of reptiles
• They breed on land due to their hard shell so they don’t dry out • Scales on their skin
Give the characteristics of fish
• They have scales, gills and fins • Their eggs have no shells