A researcher genetically modifies an organism so it is paralyzed because its motor neurons can send signals to muscles, but none of the motor neurons can receive signals sent from the brain through other neurons. What is wrong with these motor neurons?
A. The motor neurons cannot reach the muscles.
B. The motor neurons lack dendrites.
C. The motor neurons lack axons.
D. The other neurons lack nuclei.
Answer: B
You might also like to view...
The right lymphatic duct
A) carries lymph originating in tissues superior to the diaphragm. B) carries lymph to the right brachiocephalic vein. C) joins the left subclavian vein immediately lateral to where the left internal jugular vein joins. D) carries lymph from the right bronchomediastinal trunk. E) None of the answers are correct.
The greatest output of electrolytes normally is in urine
Indicate whether the statement is true or false
Which of the following is a function of astrocytes?
A. They circulate the cerebrospinal fluid. B. They produce cerebrospinal fluid. C. They phagocytize tissue debris. D. They help form the blood-brain barrier. E. They form myelin in the CNS.
ATP is
A. formed during the hydrolysis of ADP. B. used by cells for the storage of energy. C. used to transfer energy within a cell. D. a protein. E. a molecule with less total energy content than ADP.