In a forest community, a shelf fungus and a slug live on the side of a decaying tree trunk. The fungus digests and absorbs materials from the tree, while the slug eats algae growing on the outside of the trunk. These organisms do not compete with one another because they occupy .a. the same habitat, but different niches
b. the same niche and the same habitat
c. the same niche, but different habitats
d. different habitats and different niches