Jawless fish (superclass)
cartligious fish (class)
bony fish (class)
number of chambers in fish heart
salamanders and newts (order)
frogs and toads (order)
number of chambers in heart for tadpole
number of chambers in heart for frog
amphibians with no legs
What appeared first?
number of chambers in heart for reptiles
adaptation to find food
Snakes and lizard (order)
primitive group of reptiles
rub oil from glands onto feathers
number of chambers in heart for bird
earliest fossil of bird
What is hair made of in mammals?
number of chambers in heart for mammal
horses being spooked and eventually lacking a response (what behavior is this?)
dog and bell with food (what behavior is this?)
using two bamboo sticks and putting together to make longer (what behavior is this?)
ducklings following man (what behavior is this?)
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