Which of the following is derived from ectoderm?
A. lens of the eye
B. thymus gland
C. tonsils
D. urinary bladder
E. dermis of skin
A
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Nervous control of gastric secretion is provided by ________
A) somatic neurons in the spinal cord B) the vagus nerve and enteric plexus C) the reticulospinal and vestibulospinal tracts D) the rubrospinal tracts
Oxygen-poor blood passes through the _________.
A. right AV (tricuspid) and pulmonary valves B. right AV (tricuspid) valve only C. left AV (mitral) and aortic valves D. left AV (mitral) valve only E. pulmonary and aortic valves
The large arteries associated with the heart all transport oxygen-rich blood.
Answer the following statement true (T) or false (F)
Summarize the role of the kidneys in regulating red blood cell production
What will be an ideal response?