Living Systems Crossword

This printable crossword puzzle on the topic of First Aid & Safety has 13 clues. Answers range from 6 to 11 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Superkingdom
Broadest level of classification
Most specific level of classification
Organism that has cells that lack a nucleus
Organism that have cells with a nucleus
Living and once living parts of an ecosystem
Non-living parts of an ecosystem
Cannot produce own food
Produces own food
A living thing
All members of one species in an area
All the different populations that live in an area
All living and nonliving things in an area