1 Lab 4 Date: ______ L#___ Name: __________________________ Turn in completed handout at end of Recitation for Participation Credit. Incomplete handouts will receive “0” to “partial credit” for participation. Handouts will be returned by next Lab. Keep for your Record. Handouts with illegible/missing name, incorrect/missing Lab section#, or staples will not be graded. Mussel Feeding Experimental Design Hypothesis : Null hypothesis : Controls : Positive Negative Positive Control: Negative Control: Positive Control: Negative Control: Lab 6 Poster Presentation Why do scientists use posters? What resources are available to help you with your poster? Background : Blue mussels are found in environments between 0°C - 20°C. Mussels feed between 5 °C -20 °C.