Birds
What is unique to birds?
Feathers
What is unique about the skin of mammals?
Fur / Hair
What covers the body of a fish?
scales
Describe reptile skin.
dry / scaly
Describe amphibian skin.
moist, often slimy
What skeletal feature helps birds fly?
Hollow bones
How do mammals feed their young?
Mammals have mammary glands that produce milk for their young.
True / False: Fish are the only animals that have gills.
False Example: tadpoles
How do reptiles breathe?
Reptiles have lungs.
True / False: Reptiles and amphibians undergo metamorphosis.
False
True / False: Birds are warm blooded.
True
Mammals are homeothermic. What does this mean?
warm-blooded / They can self-regulate their body temperature.
Fish are ectothermic. What does this mean?
True / False: Reptiles are cold-blooded.
True
True / False: All amphibians are tetrapods.
False Example: Some salamanders are legless.
Birds are bipedal. What does this mean?
They walk on two legs.
What is unique about the lower jaw of mammals?
The lower jaw of mammals consists of only one bone.
Do all fish have bony skeletons?
No
True / False: Most reptiles can chew their food.
False
Name two groups of amphibians.
frogs / toads / salamanders
Birds are oviparous. What does this mean?
Birds lay eggs to reproduce.
Mammals are viviparous. What does this mean?
Mammals give birth to live young.
What specialized organ helps fish regulate buoyancy?
swim bladder
Snakes and lizards use their tongues in the process of smelling things. What organ is involved?
Jacobson’s organ
Some frogs secrete toxins on their skin. What can these be used for?
Some skin secretions, especially toxins, have potential use as anesthetics and painkillers.