Problem: Interactions between species can increase or decrease the diversity of a community, usually measured as the number of species. For each type of interaction, state whether the interaction (i) increases diversity, (ii) decreases diversity, or (iii) either increases or decreases diversity depending on the situation. Defend your position based on direct and indirect effects in a community. Four types of interactions: a) Competition b) Herbivory c) Mutuaiism d) Predation