Answer:
From smallest to largest, the levels are species, genus, family, order, class, phylum, and kingdom. Each of the ranking levels is called a taxon. Just as a genus is a group of similar species, a family is a group of similar genera. An order is a group of similar families.
B. specific to a substrate
Answer: Soil is the earthworm's habitat.
Explanation: The worm gets the food from the soil and also lives in to soil, that is the basic living needs for a habitat.