5 Questions
What is the estimated number of living animal species on Earth as of 2022?
7.77 million
Which group do most living animal species belong to?
Infrakingdom Bilateria
What is the study of animal behaviors known as?
Ethology
What is the body length range of animals mentioned in the text?
8.5 μm to 33.6 m
Which group includes phyla such as arthropods, molluscs, and annelids?
Protostomes
Test your knowledge about the vast diversity of animal species and their characteristics with this quiz. Explore the unique traits and behaviors of various animals and learn fascinating facts about the animal kingdom.
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