Helium (HE) has an atomic number of 2. It is chemically stable because it
A) is neutral in electrical charge.
B) readily ionizes to react with other atoms.
C) has a full outer electron shell.
D) will form a covalent bond with another He atom.
E) lacks electrons, thus the He atom is stable.
C
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Which of the following is not controlled by the ANS?
A) skeletal muscle system B) cardiovascular system C) respiratory system D) digestive system E) urinary system
This figure shows a renal corpuscle. What structure does number 6 indicate?
A. Efferent arteriole B. Distal convoluted tubule C. Proximal convoluted tubule D. Afferent arteriole E. Nephron loop
Bones that are longer than they are wide and generally have enlarged ends for articulations are classified as ______ bones
A. short bone B. irregular bone C. long bone D. flat bone
Which of the following combinations indicates the correct distribution of spinal nerve pairs?
A. 7 cervical - 12 thoracic - 6 lumbar - 5 sacral - 1 coccygeal B. 7 cervical - 12 thoracic - 5 lumbar - 6 sacral - 1 coccygeal C. 8 cervical - 12 thoracic - 6 lumbar - 4 sacral - 1 coccygeal D. 8 cervical - 12 thoracic - 5 lumbar - 5 sacral - 1 coccygeal E. 7 cervical - 13 thoracic - 6 lumbar - 5 sacral - 1 coccygeal