Sometimes the carboxyl groups of proteins release hydrogen ions
Indicate whether the statement is true or false
TRUE
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The movement of rotating a limb outward is called
A) inversion. B) medial (internal) rotation. C) lateral (external) rotation. D) eversion. E) protraction.
Of the following muscles of the head, which one is on the cheek?
A) orbicularis oris B) nasalis C) frontali D) zygomaticus major
Describe trace elements
A) Trace elements are abundant in the atmosphere and also abundant in the human body. B) Trace elements are present in small amounts in the body and are required for normal growth and maintenance. C) Trace elements are present in small amounts in the body and are not necessary for normal growth and maintenance. D) Trace elements are present in small amounts in the atmosphere but accumulate in the body at high levels. E) Trace elements are the elements produced by nuclear reactions in research laboratories.
The fluid-filled cavity that appears in a secondary follicle is called the
A) corpus luteum. B) cortex. C) stroma. D) antrum. E) corpus albicans.