Which of the following correctly describes the order of the nerve pathways?

A group of students did an experiment about taste. They were given salt, sugar, coffee, vinegar and lemon solutions to taste through a straw but they were blindfolded and had to hold their nose firmly closed. They had difficulty identifying the five flavors. Why?

Sense organs have receptors. Receptors detect changes in the environment. Which word describes one of these changes in the environment that is detected?

Which two human sense organs have receptors specifically sensitive to chemicals?

Sometimes, when people have an accident and break their back they lose the use of their legs. Why does this happen?

Nerve cells of the nervous system that are responsible for converting external stimuli from the organism's environment into electrical impulses that can be transmitted to the brain are called what?

In which section of the brain are voluntary muscle messages processed?

Which two organs comprise the central nervous system?

Your ears contain receptors sensitive to sound. But what other receptors can be found there?

Which of the following are effectors?