Examlex
Which of the following is not associated with every virus?
Two Openings
Refers to organisms with a digestive system that has a distinct mouth and anus, allowing for a one-way flow of food and waste.
Cnidarians
A phylum of aquatic invertebrates known for their distinctive body structure with a jelly-like substance called mesoglea, radial symmetry, and specialized cells called cnidocytes.
Tapeworms
Tapeworms are flat, segmented parasitic worms that live in the intestines of some animals, including humans, often causing health issues.
Flatworms
A group of invertebrates belonging to the phylum Platyhelminthes, characterized by their flattened bodies, lack of body cavity, and simple organ systems.
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