Wyoming Pesticide Applicator Certification Practice Test

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Prepare for the Wyoming Pesticide Applicator Certification Exam. Engage with our quiz featuring multiple choice questions designed to test your knowledge and provide insights. Boost your confidence and readiness for the certification process!

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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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