Can You Pass This Science Quiz for Grades 3-5?
QUESTION 32-How would you define animals that lack a backbone?
Correct Incorrect Invertebrates---Invertebrates are organisms that do not possess a vertebral column or backbone. They comprise over 90 percent of all known animal species. Invertebrates exhibit a wide range of forms and include animals such as insects, spiders, mollusks, crustaceans, and worms.