Biology Crossword
This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 6 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
An evolutionary unit that includes an ancestral population and all of its descendants but no others
Direct transfer of heat between two objects that are in physical contact
Animals with jaws
The cell formed by the union of two gametes; a fertilized egg
The physical structure of organisms
Similarity among organisms of different species due to shared ancestry
An internal, usually fluid-filled body cavity that is completely or partially lined with mesoderm
Similarity among organisms of different species due to reasons other than common ancestry, such as convergent evolution
Stiff spike of silica or calcium carbonate that provides structural support in the body of many sponges
An unnatural group based on convergent characteristics that are not present in a common ancestor
