BIO 102 – Mastering Biology | Verified
Questions with Detailed Answers
[updated 2025]
1. Nematodes and arthropods are the largest ecdysozoan phyla.
Which of the following statements are true?
-Both nematodes and arthropods possess an external covering, or cuticle.
-Nematodes possess a closed circulatory system.
-Arthropods possess an open circulatory system.
-Nematodes are acoelomate, whereas arthropods are coelomate.
-Some nematodes are parasitic on humans.
-Both nematodes and arthropods have segmented body plans.
-Both nematodes and arthropods must molt in order to increase in size.
-The cuticle in nematodes lengthens as the animal grows.
-Arthropods are named for their jointed appendages.
-Both nematodes and arthropods possess an external covering, or cuticle.
-Arthropods possess an open circulatory system.
-Some nematodes are parasitic on humans.
-Both nematodes and arthropods must molt in order to increase in size.
-Arthropods are named for their jointed appendages.
2. The phylum Arthropoda includes four major lineages
Cheliceriforms
Myriapods
Questions with Detailed Answers
[updated 2025]
1. Nematodes and arthropods are the largest ecdysozoan phyla.
Which of the following statements are true?
-Both nematodes and arthropods possess an external covering, or cuticle.
-Nematodes possess a closed circulatory system.
-Arthropods possess an open circulatory system.
-Nematodes are acoelomate, whereas arthropods are coelomate.
-Some nematodes are parasitic on humans.
-Both nematodes and arthropods have segmented body plans.
-Both nematodes and arthropods must molt in order to increase in size.
-The cuticle in nematodes lengthens as the animal grows.
-Arthropods are named for their jointed appendages.
-Both nematodes and arthropods possess an external covering, or cuticle.
-Arthropods possess an open circulatory system.
-Some nematodes are parasitic on humans.
-Both nematodes and arthropods must molt in order to increase in size.
-Arthropods are named for their jointed appendages.
2. The phylum Arthropoda includes four major lineages
Cheliceriforms
Myriapods
