What is the cessation of menstruation referred to as?
A. Menarche
B. Menopause
C. Climacteric
D. Pubarche
B. Menopause
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When a chemical reaction is in equilibrium,
A) the reaction is proceeding at its maximum rate. B) there is no net change in the amount of substrates or products. C) there are equivalent amounts of substrates and products. D) the reaction has stopped.
Which of the following prenatal tests is non-invasive?
A) Chorionic villi sampling B) Amniocentesis C) Inserting a shunt into a fetus with water on the brain D) Ultrasound
The lens
A. is biconcave. B. focuses light on the retina. C. floats in the vitreous humor. D. is attached to the retina by suspensory ligaments. E. is normally opaque.
which describes the action of the diaphragm when it contracts?
a) during expiration, it elevates the floor of thorax b) during inspiration, it elevates and protracts the ribs c) during expiration, it depresses and retracts the ribs d) during inspiration, it depresses the floor of thorax