Earthworms and leeches belong to which phylum of segmented worms?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the Academic Decathlon Science Test. Study with flashcards and multiple choice questions, each question offers hints and explanations. Get ready for your scientific challenge!

Multiple Choice

Earthworms and leeches belong to which phylum of segmented worms?

Explanation:
Segmented body organization with a true coelom identifies earthworms and leeches as members of the phylum Annelida. Annelids have repeating body segments, a closed circulatory system, and a gut that runs through the length of the body, traits shared by both earthworms and leeches despite their different lifestyles. Other groups listed differ in fundamental ways: Mollusca includes animals like snails and clams that aren’t built from repeating segments; Arthropoda have segmented bodies plus an external skeleton and jointed limbs; Echinodermata exhibit radial symmetry and a water vascular system. Earthworms and leeches, therefore, belong to Annelida.

Segmented body organization with a true coelom identifies earthworms and leeches as members of the phylum Annelida. Annelids have repeating body segments, a closed circulatory system, and a gut that runs through the length of the body, traits shared by both earthworms and leeches despite their different lifestyles. Other groups listed differ in fundamental ways: Mollusca includes animals like snails and clams that aren’t built from repeating segments; Arthropoda have segmented bodies plus an external skeleton and jointed limbs; Echinodermata exhibit radial symmetry and a water vascular system. Earthworms and leeches, therefore, belong to Annelida.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy