Reefs Unleashed

As you learned in the last activity, scientists cannot always rely on observation of physical characteristics to distinguish between species. Cristina Castillo explains the science behind using DNA to identify species, then she reveals what the DNA shows about the organisms you studied in the last activity.

Were you right? Take another look at all four organisms now that you have all the DNA evidence. Then, click "FINISH" to continue to the Summary page to learn how you can participate in more exciting work like this.

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bryozoanmicro_30july2013.jpg
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