Wyoming Pesticide Applicator Certification Practice Test

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Prepare for the Wyoming Pesticide Applicator Certification Test with our comprehensive quiz. This resource includes multiple-choice questions designed to enhance your knowledge, along with hints and explanations. Get ready to ace your certification!

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Which class of animals lack backbones?

  1. Arthropods

  2. Mammals

  3. Reptiles

  4. 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.

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