Vertebrates

Vertebrates are ___________ organisms that cannot make their own food.

Vertebrates are h__________ .

Some vertebrates are herbivores, while others are carnivores or ____________

There are five classes of vertebrates. All of them have an internal _____________ with a backbone and a skull to protect the brain.

Fish are _____________ animals that we can find in marine and freshwater ecosystems.

Fish are covered with scales and they have __________ to swim.

Amphibians and reptiles live on ______ or in water.

As adults, amphibians and reptiles are usually ___________

Amphibians have soft ________, but reptiles have scales.

Most birds have __________ that let them fly.