You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.

Q: Which is a response of the autonomic nervous system that helps maintain equilibrium in the body?  
 (A) shivering in cold temperatures (B) eating due to appetite (C) slapping at biting insects (D) pulling away from hot objects

A: A
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Q: Which of the following correctly lists the organizational hierarchy of organisms from simplest to most complex?  
 (A) cells, organs, tissues, organ systems, organisms (B) cells, tissues, organs, organ systems, organisms (C) tissues, cells, organs, organ systems, organisms (D) tissues, organs, cells, organ systems, organisms

A: B
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Q: The main source of food for a coyote population in one area is mice. Which is most likely to happen to these coyotes if a new predator begins eating the mice?  
 (A) There will be fewer coyotes. (B) The coyotes will produce more young. (C) More coyotes will arrive from other locations. (D) Each coyote will spend less time hunting food.

A:
A
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