The ____ is the only route in which arteries carry less oxygen than veins.
What will be an ideal response?
pulmonary circuit
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While most of the cells in a hair are dead, the living epithelial cells are found in
A. the cuticle of the hair shaft. B. the cortex of the hair shaft. C. the hair bulb. D. the hyponychium.
Which of the following is NOT a function of amniotic fluid?
A) provides nutrition for the developing embryo B) maintains a constant temperature for the developing embryo C) allows the embryo freedom of movement D) protects the embryo from trauma
The testes leave the abdominal cavity and reach the scrotum by passing through the ________.
A. cloaca B. urogenital opening C. urethra D. Wolffian ducts E. inguinal canal
Why is pulling a hair painful, yet cutting a hair is not?
What will be an ideal response?