Back in the library, Alex’s hand jumped away from a sharp pencil tip he hadn't noticed. He blinked, the glow fading from the book’s pages. The Master of Biology
Remembering the Vlashchenko section on the "Reflex Arc," Alex guided the spark through the sensory neuron. They raced past the "Gray Matter" gates and zoomed back out through the motor neuron. gdz po biologii 8 klass zaporozhets vlashchenko
Alex realized he wasn't just observing; he was part of a reflex action. A "pain signal" was coming from a stubbed toe, and he had to help it reach the spinal cord before the brain even knew what happened. Applying the Lesson Back in the library, Alex’s hand jumped away