Vertebrates and Invertebrates. Interactive worksheet | TopWorksheets - Free Printable

Let's solve this step by step.

We are asked to classify each animal in the image as either "vertebrates" or "invertebrates".

What’s the difference?

- Vertebrates have a backbone (spine) and include animals like mammals, birds, reptiles, amphibians, and fish.
- Invertebrates do not have a backbone. They include animals like insects, snails, jellyfish, corals, etc.

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Now let's go through each animal in the image:

#### Row 1:
1. Chameleon – A reptile → has a backbone → Vertebrate
2. Frog – An amphibian → has a backbone → Vertebrate
3. Bird – Birds have backbones → Vertebrate

#### Row 2:
4. Jellyfish – No backbone; soft-bodied marine animal → Invertebrate
5. Snake – A reptile → has a backbone → Vertebrate
6. Coral – This is a colony of tiny animals called polyps; no backbone → Invertebrate

#### Row 3:
7. Fish – Has a backbone → Vertebrate
8. Snail – Mollusk; no backbone → Invertebrate
9. Kangaroo – Mammal → has a backbone → Vertebrate

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Final Answers (from left to right, top to bottom):

1. Chameleon → Vertebrates
2. Frog → Vertebrates
3. Bird → Vertebrates
4. Jellyfish → Invertebrates
5. Snake → Vertebrates
6. Coral → Invertebrates
7. Fish → Vertebrates
8. Snail → Invertebrates
9. Kangaroo → Vertebrates

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✔ Answer Key:

- Row 1: Vertebrates, Vertebrates, Vertebrates
- Row 2: Invertebrates, Vertebrates, Invertebrates
- Row 3: Vertebrates, Invertebrates, Vertebrates

You can fill these into the boxes under each animal accordingly.