Number two input an animal receives

Number two input an animal receives

• A. Gravity sensation
• B. From their senses
• C. Smell
• D. Touch

Answer: (B)

Input into an animal’s nervous system comes from sensory information gathered by receptors in the senses. These senses provide external data about the world and the body’s position, including vision, hearing, smell, touch, and the vestibular system that detects gravity. The option describing input as coming “from their senses” points to the source of this information—the sensory systems themselves—rather than naming a single modality. The other choices are examples of specific senses or modalities, not the source of input. So, the best answer is the one that identifies input as originating from their senses.

Input into an animal’s nervous system comes from sensory information gathered by receptors in the senses. These senses provide external data about the world and the body’s position, including vision, hearing, smell, touch, and the vestibular system that detects gravity. The option describing input as coming “from their senses” points to the source of this information—the sensory systems themselves—rather than naming a single modality. The other choices are examples of specific senses or modalities, not the source of input. So, the best answer is the one that identifies input as originating from their senses.