The body has both physical and chemical ________ to prevent invaders from entering.
A. cells
B. barriers
C. nodes
D. cytes
Answer: B
Anatomy & Physiology
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A scant amount or frequency of urination is ____________________________
Fill in the blank(s) with correct word
Anatomy & Physiology
Which of the following would increase heart rate?
cold temperature parasympathetic stimulation epinephrine low metabolic rate
Anatomy & Physiology
Mature ________ are the most abundant of the formed elements.
A. platelets B. erythrocytes C. neutrophils D. lymphocytes
Anatomy & Physiology
The ____________________ sex characteristics refer to the many external characteristics not directly involved in reproduction that distinguish males and females
Fill in the blank(s) with correct word
Anatomy & Physiology