In the nucleus, DNA is wrapped with proteins. This complex is called ________.
A. cytoplasmic organelles
B. a DNA wrap
C. DNA particles
D. chromatin
E. nucleoli
Answer: D
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Why are urination and defecation under voluntary control?
A. The nerves that supply external urethral and anal sphincters have varicosities. B. The external urethral and anal sphincters are innervated by the autonomic nervous system. C. The urogenital diaphragm is voluntary while the pelvic diaphragm is involuntary. D. The external and anal sphincters are composed of multi-unit muscle tissue. E. The external and anal sphincters are composed of skeletal muscle tissue.
Which of the following lies between the cerebrum and the brain stem?
A) medulla oblongata B) pons C) mesencephalon D) diencephalon E) cerebellum
In the diagram of the humerus, which is the lateral epicondyle?
a) A b) B c) F d) G e) H
Where is the greater splanchnic nerve in the diagram?
a) A b) B c) C d) E e) G