Wyoming Pesticide Applicator Certification Practice Test

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Prepare for the Wyoming Pesticide Applicator Certification Test. Utilize flashcards and multiple-choice questions to sharpen your knowledge. Be ready to demonstrate your understanding of safe pesticide use!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

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.