Which of the following is not a cation?
A) Na+
B) Cl-
C) K+
D) Ca2+
E) Mg2+
B
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The portion of DNA that codes for a particular polypeptide is called a
A) genome. B) phenotype. C) karyotype. D) trait. E) gene.
Which of the following statements concerning bursae is true?
A. They are filled with air. B. They are a cellular cushion. C. They carry blood vessels to joints. D. They are formed by an extension of the synovial membrane. E. They bind tendons to ligaments.
Peripheral chemoreceptors that can detect changes in blood pH are located in the ________.
A. aortic and carotid bodies B. pons C. medulla oblongata D. lungs
The brain and spinal cord make up this division of the nervous system
A) autonomic nervous system (ANS) B) central nervous system (CNS) C) peripheral nervous system (PNS) D) somatic division of the peripheral nervous system