Which of the following groups is the correct classification for roundworms?

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Study for the NBEO Microbiology exam. Prepare with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Which of the following groups is the correct classification for roundworms?

Explanation:
Roundworms are nematodes, a distinct phylum of worms that are long, slender, and unsegmented with a protective cuticle and a pseudocoelom acting as a hydrostatic skeleton. They have a complete digestive tract from mouth to anus and typically separate sexes. This body plan sets them apart from the other groups: trematodes and cestodes are flatworms (phatyhelminthes) with leaf-like shapes, and cestodes are segmented; acanthocephalans have a unique thorny proboscis. Because of these anatomical and developmental differences, the correct classification for roundworms is nematodes. Examples you might encounter include Ascaris and Enterobius, both nematodes.

Roundworms are nematodes, a distinct phylum of worms that are long, slender, and unsegmented with a protective cuticle and a pseudocoelom acting as a hydrostatic skeleton. They have a complete digestive tract from mouth to anus and typically separate sexes. This body plan sets them apart from the other groups: trematodes and cestodes are flatworms (phatyhelminthes) with leaf-like shapes, and cestodes are segmented; acanthocephalans have a unique thorny proboscis. Because of these anatomical and developmental differences, the correct classification for roundworms is nematodes. Examples you might encounter include Ascaris and Enterobius, both nematodes.

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