A typical ejaculation results in the discharge of 2 to 5 mL of the fluid called ___________
A.
semen
B.
sperm
C.
seminal vesicle secretions
D.
mucous
E.
prostatic secretions
A
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The upper respiratory tract extends from the nose through the ________.
A. pharynx B. alveoli C. trachea D. larynx E. lungs
The floor of the orbit is formed by the
A. maxillary and zygomatic bone. B. ethmoid and lacrimal bones. C. zygomatic and sphenoid bones. D. frontal bone.
An example of a receptor in a negative feedback loop controlling body temperature would be
A) temperature sensors on the skin that detect a stimulus. B) sweat glands that increase secretion. C) regulatory centers that send commands to an effector. D) effectors that cause blood vessels to dilate. E) sweat glands that act like effectors.
A ______________ view places an animal on its chest for an x-ray
Fill in the blank(s) with correct word