Common Ancestry Crossword Puzzle

QUESTIONS LIST:

• common ancestry : the idea that all living organisms are descended from a single ancestor or a small group of ancestors.
• evolution : the process through which species change over time.
• fossil : the imprint or hardened remains of a plant or animal that lived long ago45.
• extinction : the permanent disappearance of a species.
• adaptation : a characteristic, a behavior, or any inherited trait that makes a species able to survive and reproduce in a particular environment,
• homologous structure : an organ or body part that appears in different organisms and is similar in structure and location but doesn’t necessarily share the same function.
• analogous structure : an organ or body part that appears in different organisms and has similar functions but not necessarily shared ancestry.
• vestigial organ : a physical structure that was fully developed and functional in an earlier group of organisms but is reduced and unused in later species.
• phylogeny : the study of the evolutionary history of organisms.
• convergence : the process by which unrelated organisms evolve similar features.
• divergence : the process by which organisms with similar features diverge into different groups,
• species : the smallest unit of classification in the linnaean system.
• cladogram : the term for a diagram that shows the evolutionary relationships among organisms,