This lab activity requires students to identify symbiotic relationships. Lab groups receive a set of symbiotic cards (included). On the card is the name of an organism and some clues about a symbiotic relationship it has with another organism. The lab groups task is to match up the cards completing the 15 symbiotic relationships. Students will describe what type of symbiotic relationship the pair share. Students record this information on the data table. An answer key is provided. Print the set of cards in different colors so the sets stay organized and piles separate.