The Big Animals

What are the main categories of vertebrates?

• Insects

• Crustaceans

• Mollusks

• Fish, Amphibians, Reptiles, Birds, Mammals

Name a characteristic of fish.

• Gills for breathing

• Lungs for breathing

• Fins for walking

• Scales for insulation

How do amphibians breathe?

• Amphibians do not breathe; they absorb oxygen from water.

• Amphibians breathe only through their gills.

• Amphibians breathe exclusively through their mouths.

• Amphibians breathe through their skin and lungs.

What is a common trait of reptiles?

• Feathers for insulation

• Warm-blooded metabolism

• Aquatic lifestyle

• Ectothermic metabolism

What do mammals have that other vertebrates do not?

• Mammary glands

• Scales

• Gills

• Feathers

Can you name an example of a carnivorous animal?

• lion

• rabbit

• giraffe

• elephant

What is the main difference between warm-blooded and cold-blooded animals?

• Warm-blooded animals maintain a constant body temperature; cold-blooded animals do not.

• Warm-blooded animals are always larger than cold-blooded animals.

• Cold-blooded animals can fly, while warm-blooded animals cannot.

• Warm-blooded animals are found only in cold climates.

How do mammals do for their young?

• Mammals abandon them.

• Mammals do not care for them.

• Mammals nurse and teach them.

• Mammals kill them.

What is a unique feature of amphibians?

• Lay eggs in nests on land

• Cold-blooded with feathers

• Metamorphosis from aquatic larvae to terrestrial adults.

• Ability to breathe underwater throughout their life

Which vertebrates lay eggs?

• Birds, reptiles, amphibians, and most fish

• Insects

• Mammals

• Crustaceans