Final Answer:
c) Insects is not a member of the phylum Chordata.
Step-by-step explanation:
Members of the phylum Chordata are characterized by the presence of a notochord at some stage in their development. Insects, on the other hand, belong to the phylum Arthropoda. While fish, birds, and mammals are all examples of chordates, insects diverge taxonomically and are not classified within the phylum Chordata.
The phylum Chordata includes diverse organisms with a notochord, which is a flexible rod-like structure providing support. Fish, birds, and mammals are all chordates, representing different classes within this phylum. Insects, however, belong to the phylum Arthropoda, characterized by jointed legs and segmented bodies.
Understanding the classification of organisms into different phyla is essential for organizing and studying the diversity of life on Earth. In this case, recognizing that c) insects are not members of the phylum Chordata helps in distinguishing them from chordates like fish, birds, and mammals.