Exploring mouse stomach content within a grassland habitat Worms are incorporated into about 30% of adult mouse diets. However, ontogenetic shifts (changes in diet) are common in mice as they grow bigger and are able to consume larger or other food sources. First, filter your dataset to include all mice within the Young size class. Then, with this filtered dataset, answer the following question: does the presence of worms in the Young mouse diets seem to differ from the adult mouse diets? One of the variables you will be using is "Size Class". What type of variable is this? factor integer ranked discrete