The myelin sheath
a. nourishes the neurons
b. transmits impulses from one neuron to another
c. insulates the axons
d. insulates the synapses

Which of these resources is used worldwide to make construction products, pottery, and porcelain

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above

Which of the following does not make up ground substance of connective tissue? hyaluronic acid elastic fibers glycosaminoglycan proteoglycan