An animal without a backbone.

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 2026 Science Vocabulary Competition! Access flashcards, multiple choice questions, explanations, and hints. Ace the exam with confidence!

Multiple Choice

An animal without a backbone.

Explanation:
Animals without a backbone are invertebrates. The backbone, or vertebral column, is what defines vertebrates. Mammals and birds are vertebrates because they have a backbone, as do fish, reptiles, and amphibians. In contrast, invertebrates lack this internal skeleton and include insects, mollusks, crustaceans, and worms. So naming an animal without a backbone points to the invertebrate group.

Animals without a backbone are invertebrates. The backbone, or vertebral column, is what defines vertebrates. Mammals and birds are vertebrates because they have a backbone, as do fish, reptiles, and amphibians. In contrast, invertebrates lack this internal skeleton and include insects, mollusks, crustaceans, and worms. So naming an animal without a backbone points to the invertebrate group.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy