What is the primary difference between vertebrates and invertebrates?

Vertebrates have a backbone, while invertebrates do not.

Name three examples of invertebrate animals mentioned in the video.

Octopus, insects, jellyfish (any three from the list)

Fish live only in water and breathe with gills; amphibians can live on land and in water and may undergo metamorphosis.

I can classify animals into major phyla based on their characteristics.

1
Scientists classify animals into different groups based on shared characteristics to better understand the differences between them.
2
Vertebrates are animals that have spines or backbones, while invertebrates do not have backbones, and most of the animals in the world are invertebrates.
3
The five classes of vertebrates are fish, amphibians, reptiles, birds, and mammals.