STEP 2: Record the humidity for your location from weather.gov and whether the pine cone is open or closed each day. Represent your data in a table. STEP 3: After two weeks, graph your data. What ...

Pine cones can open and close their scales in response to humidity because of complex interactions within the organism's structure. Shifts in humidity cause changes in microscopic cellulose fibers, ...

Pine cones open when dry and close when wet. In this way, pine seeds are released only under advantageous conditions, namely when it is dry and the seeds can be carried far by wind. Opening and ...