Blood returning to the heart from the pulmonary circuit first enters the
A) right atrium.
B) right ventricle.
C) left atrium.
D) left ventricle.
E) conus arteriosus.
Answer: C
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Where are upper motor neurons located?
A. Cerebral cortex or brainstem B. Spinal cord C. Spinothalamic tract D. Posterior horn of the spinal cord E. Anterior horn of the spinal cord
A mistake during segregation of chromosomes is called ________.
A. nondisjunction B. deletion C. aneuploidy D. point mutation E. duplication
Most bones of the skeleton develop by endochondral ossification.
Answer the following statement true (T) or false (F)
What are the products of glycolysis under anaerobic conditions?
A. 2 molecules of pyruvate and 36 molecules of ATP B. 2 molecules of pyruvate, 2 molecules of lactate, and 2 ATP C. 2 molecules of NADH and 2 molecules of water D. 2 molecules of pyruvate, 2 molecules of water, and 2 NADH E. 2 molecules of ATP, 2 molecules of water, and 2 molecules of lactate