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Name Date

Vertebrates and Invertebrates

Complete the Sentence

Directions: Complete each sentence with the correct word or phrase from the word bank.

sponges mammals eggs

50,000 ostriches body temperatures

vertebrates amphibians

coelenterates arthropod penguins

1. Adult _____________________ have a spinal column, or backbone, running the length

of their body.

2. Warm-blooded animals regulate their own ________________ ___________________.

3. _____________________ are cold-blooded and live both on land and in the water.

4. Two birds that cannot fly are _____________________ and _____________________.

5. _____________________ are warm-blooded, and are nourished by their mothers' milk.

6. Jellyfish, corals, and sea anemones are from the primitive invertebrate group called

_____________________.

7. Mollusks are the second largest group of invertebrates, with _____________________

living species.

8. The most primitive animal group is _____________________.

9. Most fish are cold-blooded and lay _____________________.

10. The animal group that includes insects, arachnids, centipedes, millipedes, and

crustaceans is called the _____________________ group.

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Answer Key

Vertebrates and Invertebrates1. vertebrates

2. body temperatures

3. Amphibians

4. penguins, ostriches

5. Mammals

6. coelenterates

7. 50,000

8. sponges

9. eggs

10. arthropod