An axon is
a. a.
long, tube-like structure extending from a neuron's cell body.
b. support cell in the nervous system.
c. neuron's cell body.
d. branch-like fiber extending in clusters from a neuron's cell body.

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

What statements describe a host organism?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.