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The correct answer is letter b. Plants also use cellular respiration. Plants use sunlight to produce some ATP during photosynthesis. When the sun is out, plants produce ATP for cellular respiration. Cellular respiration is a metabolic reaction that happens in cells of organisms that take energy from ATP.
The answer is <span>c.CS; US.
In classical conditioning, a new behaviour is learned via association. The stage before conditioning involves: 1. unconditioned stimulus (US) which produces an unconditioned response, and 2. neutral stimulus (NS) which has no effect on a person and produce a response only when paired with </span>unconditioned stimulus. During conditioning, neutral stimulus (NS) and unconditioned stimulus (US) pair and neutral stimulus becomes a conditioned stimulus (CS). In other words, <span>the ns becomes a <u>CS</u> after it reliably signals the impending occurrence of the <u>US</u>. </span>
