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Most mamals have a backbone, which means they are _____.
vertebrates
Most mammals have _____ to keep warm.
hair or fur
Mammals breathe with their _____.
lungs
Birds don't have lips. They have _____.
beaks
Adult birds feed their _____ until they are independent, flying and looking after themselves.
offspring
Birds have _____ to keep warm and protect their bodies
feathers
What is the name of the process where birds keep the eggs warm?
Incubation.
Nutrition: birds can be _____, _____, or _____.
carnivores, herbivores, omnivores
Reptiles can live on _____ or in the _____.
land, water
What do reptiles have on their bodies to protect themselves?
Scales, some of them also have shell.
Reproduction: reptiles are _____.
oviparous
Amphibians have thin, _____ skin with no hair or scales.
slimy skin
Frogs and toads use their _____ tongues to catch insects.
sticky
Whats is the name of a baby frog?
Tadpole.
What is the name of the process where the offspring changes into adults?
Metamorphosis.
Breathing: when amphibians are babies, they use _____ to breathe.
Gills.
