Fill in the blanks based on the provided text: 1. The word 'fauna' means . 2. are animals that have no backbone. 3. Some people think that there may be up to insects in Papua New Guinea. 4. Many ani

Here are the answers to the fill-in-the-blanks questions based on the provided text:

1. The word 'fauna' means animals.
2. Invertebrates are animals that have no backbone.
3. Some people think that there may be up to 300,000 insects in Papua New Guinea.
4. Many animals have been important farm and damaging introduced animals.