You are presented with the question "If what are found in permafrost, that plant used to live in that place?" and the following answer choices: 
- Echinoids
 - Conifers
 - deuterostomes
 - bullfrogs
 - frozen fossils
 - one celled organisms
 - Nematoda
 - important habitats

Now knowing that if fossils of an animal or plant are found in a place then that animal or plant used to live in that place and frozen fossil animals are found in permafrost, choose the best answer.


 

     frozen fossils    