The Heartworms That Can Accumulate Within the Hearts of Dogs

question 45

Multiple Choice

The heartworms that can accumulate within the hearts of dogs and other mammals have a hemocoel, an alimentary canal, and an outer covering that is occasionally shed. To which phylum does the heartworm belong?

• A) Platyhelminthes
• B) Arthropoda
• C) Nematoda
• D) Annelida

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Definitions:

Functional Structures

Physical or organizational forms designed specifically to achieve a particular purpose or perform a specific task efficiently.

Organ

In multicelled organisms, a structure that consists of tissues engaged in a collective task.

Fibroblasts

Cells in connective tissue that produce collagen and other fibers.

Connective Tissue

Body tissue that supports, connects, or separates different types of tissues and organs in an organism.