Answer:
The heartworms that can accumulate within the hearts of dogs and other mammals have a pseudocoelom, an alimentary canal, and an outer covering that is occasionally shed. To which phylum does the heartworm belong?
protozoa
Explanation:
Protozoa contain parasites that are habor by mammals as their host
An autotroph is an organism that can build its own food
The cell grows to its mature size
The process is called <span>Polymerization</span>