Sam Is Studying the Interaction Between Porcupines, Pinion Pine Trees

question 44

Multiple Choice

Sam is studying the interaction between porcupines, pinion pine trees, and pine bark beetles. Over the course of his study in Colorado, he observes the behaviors of 25 porcupines, records the location of 151 pinion pines, and traps 332 beetles. How many populations does his study include?

• A) 1
• B) 3
• C) 508
• D) 151
• E) There is not enough information to answer the question.

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