Wyoming Pesticide Applicator Certification Practice Test

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Study for the Wyoming Pesticide Applicator Certification Exam. Prepare with a variety of questions designed to test your knowledge of pesticide application, safety protocols, and regulations. Equip yourself with the tools you need to pass the exam and start your career in pesticide application!

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Which class of animals lack backbones?

Arthropods
Mammals
Reptiles
Invertebrates

The correct answer is: Invertebrates

Invertebrates lack backbones, which means they do not have a vertebral column running down their backs. This group includes animals such as insects, worms, and mollusks. Arthropods, on the other hand (option A), are a subgroup of invertebrates that have jointed legs and exoskeletons, such as insects, spiders, and crustaceans. Mammals (option B) and reptiles (option C) are vertebrates, meaning they have backbones.